2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 99
DTC B0021 04
- Passenger Side Seat Air Bag Deployment Loop Open Circuit
DTC B0021 0D
- Passenger Side Seat Air Bag Deployment Loop Resistance Above Threshold
DTC B0021 0E
- Passenger Side Seat Air Bag Deployment Loop Resistance Below Threshold
DTC B0022 01
- RF Pretensioner Deployment Loop Short to Battery
DTC B0022 02
- Passenger Seat Belt Retractor Pretensioner Deployment Loop Short to Ground
DTC B0022 04
- Passenger Seat Belt Retractor Pretensioner Deployment Loop Open Circuit
DTC B0022 0D
- Passenger Seat Belt Retractor Pretensioner Deployment Loop Resistance Above Threshold
DTC B0022 0E
- Passenger Seat Belt Retractor Pretensioner Deployment Loop Resistance Below Threshold
DTC B0023 01
- Right Roof Rail Air Bag Deployment Loop Short to Battery
DTC B0023 02
- Right Roof Rail Air Bag Deployment Loop Short to Ground
DTC B0023 04
- Right Roof Rail Air Bag Deployment Loop Open Circuit
DTC B0023 0D
- Right Roof Rail Air Bag Deployment Loop Resistance Above Threshold
DTC B0023 0E
- Right Roof Rail Air Bag Deployment Loop Resistance Below Threshold
Diagnostic Fault Information
Thursday, September 10, 2020
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 98
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 98
- Driver Side Seat Air Bag Deployment Loop Resistance Above Threshold
DTC B0014 0E
- Driver Side Seat Air Bag Deployment Loop Resistance Below Threshold
DTC B0015 01
- Driver Seat Belt Retractor Pretensioner Deployment Loop Short to Battery
DTC B0015 02
- Driver Seat Belt Retractor Pretensioner Deployment Loop Short to Ground
DTC B0015 04
- Driver Seat Belt Retractor Pretensioner Deployment Loop Open Circuit
DTC B0015 0D
- Driver Seat Belt Retractor Pretensioner Deployment Loop Resistance Above Threshold
DTC B0015 0E
- Driver Seat Belt Retractor Pretensioner Deployment Loop Resistance Below Threshold
DTC B0016 01
- Left Roof Rail Air Bag Deployment Loop Short to Battery
DTC B0016 02
- Left Roof Rail Air Bag Deployment Loop Short to Ground
DTC B0016 04
- Left Roof Rail Air Bag Deployment Loop Open Circuit
DTC B0016 0D
- Left Roof Rail Air Bag Deployment Loop Resistance Above Threshold
DTC B0016 0E
- Left Roof Rail Air Bag Deployment Loop Resistance Below Threshold
DTC B0019 01
- Passenger Instrument Panel Air Bag Deployment Loop Stage 1 Short to Battery
DTC B0019 02
- Passenger Instrument Panel Air Bag Deployment Loop Stage 1 Short to Ground
DTC B0019 04
- Passenger Instrument Panel Air Bag Deployment Loop Stage 1 Open Circuit
DTC B0019 0D
- Passenger Instrument Panel Air Bag Deployment Loop Stage 1 Resistance Above Threshold
DTC B0019 0E
- Passenger Instrument Panel Air Bag Deployment Loop Stage 1 Resistance Below Threshold
DTC B0020 01
- Passenger Instrument Panel Air Bag Deployment Loop Stage 2 Short to Battery
DTC B0020 02
- Passenger Instrument Panel Air Bag Deployment Loop Stage 2 Short to Ground
DTC B0020 04
- Passenger Instrument Panel Air Bag Deployment Loop Stage 2 Open Circuit
DTC B0020 0D
- Passenger Instrument Panel Air Bag Deployment Loop Stage 2 Resistance Above Threshold
DTC B0020 0E
- Passenger Instrument Panel Air Bag Deployment Loop Stage 2 Resistance Below Threshold
DTC B0021 01
- Passenger Side Seat Air Bag Deployment Loop Short to Battery
DTC B0021 02
- Passenger Side Seat Air Bag Deployment Loop Short to Ground
- Driver Side Seat Air Bag Deployment Loop Resistance Above Threshold
DTC B0014 0E
- Driver Side Seat Air Bag Deployment Loop Resistance Below Threshold
DTC B0015 01
- Driver Seat Belt Retractor Pretensioner Deployment Loop Short to Battery
DTC B0015 02
- Driver Seat Belt Retractor Pretensioner Deployment Loop Short to Ground
DTC B0015 04
- Driver Seat Belt Retractor Pretensioner Deployment Loop Open Circuit
DTC B0015 0D
- Driver Seat Belt Retractor Pretensioner Deployment Loop Resistance Above Threshold
DTC B0015 0E
- Driver Seat Belt Retractor Pretensioner Deployment Loop Resistance Below Threshold
DTC B0016 01
- Left Roof Rail Air Bag Deployment Loop Short to Battery
DTC B0016 02
- Left Roof Rail Air Bag Deployment Loop Short to Ground
DTC B0016 04
- Left Roof Rail Air Bag Deployment Loop Open Circuit
DTC B0016 0D
- Left Roof Rail Air Bag Deployment Loop Resistance Above Threshold
DTC B0016 0E
- Left Roof Rail Air Bag Deployment Loop Resistance Below Threshold
DTC B0019 01
- Passenger Instrument Panel Air Bag Deployment Loop Stage 1 Short to Battery
DTC B0019 02
- Passenger Instrument Panel Air Bag Deployment Loop Stage 1 Short to Ground
DTC B0019 04
- Passenger Instrument Panel Air Bag Deployment Loop Stage 1 Open Circuit
DTC B0019 0D
- Passenger Instrument Panel Air Bag Deployment Loop Stage 1 Resistance Above Threshold
DTC B0019 0E
- Passenger Instrument Panel Air Bag Deployment Loop Stage 1 Resistance Below Threshold
DTC B0020 01
- Passenger Instrument Panel Air Bag Deployment Loop Stage 2 Short to Battery
DTC B0020 02
- Passenger Instrument Panel Air Bag Deployment Loop Stage 2 Short to Ground
DTC B0020 04
- Passenger Instrument Panel Air Bag Deployment Loop Stage 2 Open Circuit
DTC B0020 0D
- Passenger Instrument Panel Air Bag Deployment Loop Stage 2 Resistance Above Threshold
DTC B0020 0E
- Passenger Instrument Panel Air Bag Deployment Loop Stage 2 Resistance Below Threshold
DTC B0021 01
- Passenger Side Seat Air Bag Deployment Loop Short to Battery
DTC B0021 02
- Passenger Side Seat Air Bag Deployment Loop Short to Ground
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 97
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 97
瀚慖f greater than the specified range, test the circuit for a short to voltage.
13. Ignition OFF, test for infinite resistance between the high circuit terminals listed below and ground.
* Driver steering wheel air bag coil connector Stage 1 terminal A X1
* Driver steering wheel air bag coil connector Stage 2 terminal A X2
瀚慖f less than the specified value, test the circuit for a short to ground.
14. Test for infinite resistance between the low circuit terminals listed below and ground.
* Driver steering wheel air bag coil connector Stage 1 terminal B X1
* Driver steering wheel air bag coil connector Stage 2 terminal B X2
瀚慖f less than the specified value, test the circuit for a short to ground.
15. Test for less then 1 ohm between the SDM connector and the air bag connector high circuit terminals listed below.
* Driver steering wheel air bag coil connector Stage 1 terminal A X1 and SDM terminal 4 X1.
* Driver steering wheel air bag coil connector Stage 2 terminal A X2 and SDM terminal 1 X1.
瀚慖f greater than the specified range, test the circuit for an open/high resistance.
16. Test for less then 1 ohm between the SDM connector and the air bag connector low circuit terminals listed below.
* Driver steering wheel air bag coil connector Stage 1 terminal B X1 and SDM terminal 3 X1
* Driver steering wheel air bag coil connector Stage 2 terminal B X2 and SDM terminal 2 X1
瀚慖f greater than the specified range, test the circuit for an open/high resistance.
17. If all circuits test normal, replace the SDM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Steering Wheel Inflatable Restraint Module Coil Replacement (See: Restraints and Safety Systems/Air Bag Systems/Clockspring Assembly
/ Spiral Cable/Service and Repair/Removal and Replacement)
* Steering Wheel Inflatable Restraint Module Replacement (See: Restraints and Safety Systems/Air Bag Systems/Air Bag/Service and
Repair/Removal and Replacement/Steering Wheel Inflatable Restraint Module Replacement)
* SIR/SRS Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Wiring Repairs/SIR/SRS Wiring Repairs)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for SDM replacement, setup, and programming
B0014
DTC B0014-B0045
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC B0014 01
- Driver Side Seat Air Bag Deployment Loop Short to Battery
DTC B0014 02
- Driver Side Seat Air Bag Deployment Loop Short to Ground
DTC B0014 04
- Driver Side Seat Air Bag Deployment Loop Open Circuit
瀚慖f greater than the specified range, test the circuit for a short to voltage.
13. Ignition OFF, test for infinite resistance between the high circuit terminals listed below and ground.
* Driver steering wheel air bag coil connector Stage 1 terminal A X1
* Driver steering wheel air bag coil connector Stage 2 terminal A X2
瀚慖f less than the specified value, test the circuit for a short to ground.
14. Test for infinite resistance between the low circuit terminals listed below and ground.
* Driver steering wheel air bag coil connector Stage 1 terminal B X1
* Driver steering wheel air bag coil connector Stage 2 terminal B X2
瀚慖f less than the specified value, test the circuit for a short to ground.
15. Test for less then 1 ohm between the SDM connector and the air bag connector high circuit terminals listed below.
* Driver steering wheel air bag coil connector Stage 1 terminal A X1 and SDM terminal 4 X1.
* Driver steering wheel air bag coil connector Stage 2 terminal A X2 and SDM terminal 1 X1.
瀚慖f greater than the specified range, test the circuit for an open/high resistance.
16. Test for less then 1 ohm between the SDM connector and the air bag connector low circuit terminals listed below.
* Driver steering wheel air bag coil connector Stage 1 terminal B X1 and SDM terminal 3 X1
* Driver steering wheel air bag coil connector Stage 2 terminal B X2 and SDM terminal 2 X1
瀚慖f greater than the specified range, test the circuit for an open/high resistance.
17. If all circuits test normal, replace the SDM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Steering Wheel Inflatable Restraint Module Coil Replacement (See: Restraints and Safety Systems/Air Bag Systems/Clockspring Assembly
/ Spiral Cable/Service and Repair/Removal and Replacement)
* Steering Wheel Inflatable Restraint Module Replacement (See: Restraints and Safety Systems/Air Bag Systems/Air Bag/Service and
Repair/Removal and Replacement/Steering Wheel Inflatable Restraint Module Replacement)
* SIR/SRS Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Wiring Repairs/SIR/SRS Wiring Repairs)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for SDM replacement, setup, and programming
B0014
DTC B0014-B0045
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC B0014 01
- Driver Side Seat Air Bag Deployment Loop Short to Battery
DTC B0014 02
- Driver Side Seat Air Bag Deployment Loop Short to Ground
DTC B0014 04
- Driver Side Seat Air Bag Deployment Loop Open Circuit
Wednesday, September 9, 2020
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 96
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 96
Description and Operation
SIR System Description and Operation (See: Restraints and Safety Systems/Air Bag Systems/Description and Operation)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Special Tools
J 38715-A SIR Driver/Passenger Load Tool
Circuit/System Testing
Important: When removing connectors inspect for damage, corrosion or poor connection. Damage or corrosion to the following requires
repair or replacement of the affected component/connector:
* Driver steering wheel air bag
* SDM module
* Driver steering wheel air bag wiring harness connector
* SDM wiring harness connector
The connector and connector position assurance (CPA) may seat independent of each other. Both the connector and CPA should seat with
an audible and/or tactile click. The CPA isolates the shorting-bars within the connector allowing the deployment circuit to operate
properly.
1. Verify that the driver steering wheel air bag connector and CPA are engaged.
瀚慖f the above condition is not found, make the appropriate repair.
2. Ignition OFF, disconnect the harness connector at the driver steering wheel air bag.
3. With the appropriate load tool adaptor, connect J 38715-A in place of the driver steering wheel air bag.
4. Ignition ON, with a scan tool, verify the appropriate DTC is set as current.
瀚慖f the DTC is not set or is set as history, cycle ignition OFF, disconnect the adapter and J 38715-A, reconnect the harness connector at the
driver steering wheel air bag, and cycle the ignition ON. If the DTC resets after reconnecting the air bag, then replace the driver steering
wheel air bag.
5. Ignition OFF, disconnect J 38715-A and the adaptor.
6. Disconnect the driver steering wheel air bag coil in-line connector.
7. With the appropriate load tool adaptor, connect special tool J 38715-A.
8. Ignition ON, with a scan tool, verify DTC is set as current.
瀚慖f DTC is not set or is set as history, replace the driver steering wheel air bag coil.
9. Ignition OFF, disconnect special tool J 38715-A and the adaptor.
10. Disconnect the harness connector at the SDM.
11. Ignition ON, test for less than 1 volt between the high circuit terminals listed below and ground.
* Driver steering wheel air bag coil connector Stage 1 terminal A X1
* Driver steering wheel air bag coil connector Stage 2 terminal A X2
瀚慖f greater than the specified range, test the circuit for a short to voltage.
12. Test for less than 1 volt between the low circuit terminals listed below and ground.
* Driver steering wheel air bag coil connector Stage 1 terminal B X1
* Driver steering wheel air bag coil connector Stage 2 terminal B X2
Description and Operation
SIR System Description and Operation (See: Restraints and Safety Systems/Air Bag Systems/Description and Operation)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Special Tools
J 38715-A SIR Driver/Passenger Load Tool
Circuit/System Testing
Important: When removing connectors inspect for damage, corrosion or poor connection. Damage or corrosion to the following requires
repair or replacement of the affected component/connector:
* Driver steering wheel air bag
* SDM module
* Driver steering wheel air bag wiring harness connector
* SDM wiring harness connector
The connector and connector position assurance (CPA) may seat independent of each other. Both the connector and CPA should seat with
an audible and/or tactile click. The CPA isolates the shorting-bars within the connector allowing the deployment circuit to operate
properly.
1. Verify that the driver steering wheel air bag connector and CPA are engaged.
瀚慖f the above condition is not found, make the appropriate repair.
2. Ignition OFF, disconnect the harness connector at the driver steering wheel air bag.
3. With the appropriate load tool adaptor, connect J 38715-A in place of the driver steering wheel air bag.
4. Ignition ON, with a scan tool, verify the appropriate DTC is set as current.
瀚慖f the DTC is not set or is set as history, cycle ignition OFF, disconnect the adapter and J 38715-A, reconnect the harness connector at the
driver steering wheel air bag, and cycle the ignition ON. If the DTC resets after reconnecting the air bag, then replace the driver steering
wheel air bag.
5. Ignition OFF, disconnect J 38715-A and the adaptor.
6. Disconnect the driver steering wheel air bag coil in-line connector.
7. With the appropriate load tool adaptor, connect special tool J 38715-A.
8. Ignition ON, with a scan tool, verify DTC is set as current.
瀚慖f DTC is not set or is set as history, replace the driver steering wheel air bag coil.
9. Ignition OFF, disconnect special tool J 38715-A and the adaptor.
10. Disconnect the harness connector at the SDM.
11. Ignition ON, test for less than 1 volt between the high circuit terminals listed below and ground.
* Driver steering wheel air bag coil connector Stage 1 terminal A X1
* Driver steering wheel air bag coil connector Stage 2 terminal A X2
瀚慖f greater than the specified range, test the circuit for a short to voltage.
12. Test for less than 1 volt between the low circuit terminals listed below and ground.
* Driver steering wheel air bag coil connector Stage 1 terminal B X1
* Driver steering wheel air bag coil connector Stage 2 terminal B X2
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 95
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 95
Diagnostic Fault Information
Circuit/System Description
If a malfunction is detected, a DTC will be stored in non-volatile memory. During a frontal crash of sufficient force the inflatable restraint sensing
and diagnostic module (SDM) will allow current to flow through the deployment loop in order to deploy the driver steering wheel air bag. The
SDM performs continuous diagnostic tests on the deployment loops to check for proper circuit continuity and for shorts to ground or voltage.
There are 2 shorting bars used within each connector which will short together both driver steering wheel air bag stage 1 high circuit and driver
steering wheel air bag stage 1 low circuit and both driver steering wheel air bag stage 2 high circuit and driver steering wheel air bag stage 2 low
circuit when the connector is disconnected. This will help to prevent unwanted deployment of the air bag during servicing.
Conditions for Running the DTC
Ignition voltage is between 9-16 volts.
Conditions for Setting the DTC
B0012 01 Stage 1 or B0013 01 Stage 2
The driver steering wheel air bag high and/or low circuit is shorted to voltage for 120 milliseconds.
B0012 02 Stage 1 or B0013 02 Stage 2
The driver steering wheel air bag high and/or low circuit is shorted to ground for 120 milliseconds.
B0012 04 Stage 1 or B0013 04 Stage 2
The driver steering wheel air bag high and/or low circuit is open for 120 milliseconds.
B0012 0D Stage 1 or B0013 0D Stage 2
The driver steering wheel air bag deployment loop resistance is greater than 5.1 ohms for 120 milliseconds.
B0012 0E Stage 1 or B0013 0E Stage 2
The driver steering wheel air bag deployment loop resistance is less than 1.3 ohms for 120 milliseconds.
Action Taken When the DTC Sets
* The SDM requests the instrument panel cluster (IPC) to illuminate the AIR BAG indicator.
* The SDM will store a DTC, however if an event occurs the system will still attempt deployments.
Conditions for Clearing the DTC
* The condition for setting the DTC no longer exists.
* A history DTC will clear once 100 malfunction-free ignition cycles have occurred.
Diagnostic Aids
* When a harness connector is disconnected, the high control and low control circuits are shorted together by the integral shorting bar. This
should be taken into account when testing for faults on these circuits.
* This DTC usually indicates a poor connection or a wiring malfunction between the SDM and the deployment loop.
Reference Information
Schematic Reference
SIR Schematics (See: Diagrams/Electrical Diagrams/Air Bag Systems)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Diagnostic Fault Information
Circuit/System Description
If a malfunction is detected, a DTC will be stored in non-volatile memory. During a frontal crash of sufficient force the inflatable restraint sensing
and diagnostic module (SDM) will allow current to flow through the deployment loop in order to deploy the driver steering wheel air bag. The
SDM performs continuous diagnostic tests on the deployment loops to check for proper circuit continuity and for shorts to ground or voltage.
There are 2 shorting bars used within each connector which will short together both driver steering wheel air bag stage 1 high circuit and driver
steering wheel air bag stage 1 low circuit and both driver steering wheel air bag stage 2 high circuit and driver steering wheel air bag stage 2 low
circuit when the connector is disconnected. This will help to prevent unwanted deployment of the air bag during servicing.
Conditions for Running the DTC
Ignition voltage is between 9-16 volts.
Conditions for Setting the DTC
B0012 01 Stage 1 or B0013 01 Stage 2
The driver steering wheel air bag high and/or low circuit is shorted to voltage for 120 milliseconds.
B0012 02 Stage 1 or B0013 02 Stage 2
The driver steering wheel air bag high and/or low circuit is shorted to ground for 120 milliseconds.
B0012 04 Stage 1 or B0013 04 Stage 2
The driver steering wheel air bag high and/or low circuit is open for 120 milliseconds.
B0012 0D Stage 1 or B0013 0D Stage 2
The driver steering wheel air bag deployment loop resistance is greater than 5.1 ohms for 120 milliseconds.
B0012 0E Stage 1 or B0013 0E Stage 2
The driver steering wheel air bag deployment loop resistance is less than 1.3 ohms for 120 milliseconds.
Action Taken When the DTC Sets
* The SDM requests the instrument panel cluster (IPC) to illuminate the AIR BAG indicator.
* The SDM will store a DTC, however if an event occurs the system will still attempt deployments.
Conditions for Clearing the DTC
* The condition for setting the DTC no longer exists.
* A history DTC will clear once 100 malfunction-free ignition cycles have occurred.
Diagnostic Aids
* When a harness connector is disconnected, the high control and low control circuits are shorted together by the integral shorting bar. This
should be taken into account when testing for faults on these circuits.
* This DTC usually indicates a poor connection or a wiring malfunction between the SDM and the deployment loop.
Reference Information
Schematic Reference
SIR Schematics (See: Diagrams/Electrical Diagrams/Air Bag Systems)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 94
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 94
* Driver steering wheel air bag coil connector Stage 2 terminal A X2 and SDM terminal 1 X1.
瀚慖f greater than the specified range, test the circuit for an open/high resistance.
16. Test for less then 1 ohm between the SDM connector and the air bag connector low circuit terminals listed below.
* Driver steering wheel air bag coil connector Stage 1 terminal B X1 and SDM terminal 3 X1
* Driver steering wheel air bag coil connector Stage 2 terminal B X2 and SDM terminal 2 X1
瀚慖f greater than the specified range, test the circuit for an open/high resistance.
17. If all circuits test normal, replace the SDM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Steering Wheel Inflatable Restraint Module Coil Replacement (See: Restraints and Safety Systems/Air Bag Systems/Clockspring Assembly
/ Spiral Cable/Service and Repair/Removal and Replacement)
* Steering Wheel Inflatable Restraint Module Replacement (See: Restraints and Safety Systems/Air Bag Systems/Air Bag/Service and
Repair/Removal and Replacement/Steering Wheel Inflatable Restraint Module Replacement)
* SIR/SRS Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Wiring Repairs/SIR/SRS Wiring Repairs)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for SDM replacement, setup, and programming
B0013
DTC B0012 or B0013
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC B0012 01
- Driver Steering Wheel Air Bag Deployment Loop Stage 1 Short to Battery
DTC B0012 02
- Driver Steering Wheel Air Bag Deployment Loop Stage 1 Short to Ground
DTC B0012 04
- Driver Steering Wheel Air Bag Deployment Loop Stage 1 Open Circuit
DTC B0012 0D
- Driver Steering Wheel Air Bag Deployment Loop Stage 1 Resistance Above Threshold
DTC B0012 0E
- Driver Steering Wheel Air Bag Deployment Loop Stage 1 Resistance Below Threshold
DTC B0013 01
- Driver Steering Wheel Air Bag Deployment Loop Stage 2 Short to Battery
DTC B0013 02
- Driver Steering Wheel Air Bag Deployment Loop Stage 2 Short to Ground
DTC B0013 04
- Driver Steering Wheel Air Bag Deployment Loop Stage 2 Open Circuit
DTC B0013 0D
- Driver Steering Wheel Air Bag Deployment Loop Stage 2 Resistance Above Threshold
DTC B0013 0E
- Driver Steering Wheel Air Bag Deployment Loop Stage 2 Resistance Below Threshold
* Driver steering wheel air bag coil connector Stage 2 terminal A X2 and SDM terminal 1 X1.
瀚慖f greater than the specified range, test the circuit for an open/high resistance.
16. Test for less then 1 ohm between the SDM connector and the air bag connector low circuit terminals listed below.
* Driver steering wheel air bag coil connector Stage 1 terminal B X1 and SDM terminal 3 X1
* Driver steering wheel air bag coil connector Stage 2 terminal B X2 and SDM terminal 2 X1
瀚慖f greater than the specified range, test the circuit for an open/high resistance.
17. If all circuits test normal, replace the SDM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Steering Wheel Inflatable Restraint Module Coil Replacement (See: Restraints and Safety Systems/Air Bag Systems/Clockspring Assembly
/ Spiral Cable/Service and Repair/Removal and Replacement)
* Steering Wheel Inflatable Restraint Module Replacement (See: Restraints and Safety Systems/Air Bag Systems/Air Bag/Service and
Repair/Removal and Replacement/Steering Wheel Inflatable Restraint Module Replacement)
* SIR/SRS Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Wiring Repairs/SIR/SRS Wiring Repairs)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for SDM replacement, setup, and programming
B0013
DTC B0012 or B0013
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC B0012 01
- Driver Steering Wheel Air Bag Deployment Loop Stage 1 Short to Battery
DTC B0012 02
- Driver Steering Wheel Air Bag Deployment Loop Stage 1 Short to Ground
DTC B0012 04
- Driver Steering Wheel Air Bag Deployment Loop Stage 1 Open Circuit
DTC B0012 0D
- Driver Steering Wheel Air Bag Deployment Loop Stage 1 Resistance Above Threshold
DTC B0012 0E
- Driver Steering Wheel Air Bag Deployment Loop Stage 1 Resistance Below Threshold
DTC B0013 01
- Driver Steering Wheel Air Bag Deployment Loop Stage 2 Short to Battery
DTC B0013 02
- Driver Steering Wheel Air Bag Deployment Loop Stage 2 Short to Ground
DTC B0013 04
- Driver Steering Wheel Air Bag Deployment Loop Stage 2 Open Circuit
DTC B0013 0D
- Driver Steering Wheel Air Bag Deployment Loop Stage 2 Resistance Above Threshold
DTC B0013 0E
- Driver Steering Wheel Air Bag Deployment Loop Stage 2 Resistance Below Threshold
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 93
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 93
Circuit/System Testing
Important: When removing connectors inspect for damage, corrosion or poor connection. Damage or corrosion to the following requires
repair or replacement of the affected component/connector:
* Driver steering wheel air bag
* SDM module
* Driver steering wheel air bag wiring harness connector
* SDM wiring harness connector
The connector and connector position assurance (CPA) may seat independent of each other. Both the connector and CPA should seat with
an audible and/or tactile click. The CPA isolates the shorting-bars within the connector allowing the deployment circuit to operate
properly.
1. Verify that the driver steering wheel air bag connector and CPA are engaged.
瀚慖f the above condition is not found, make the appropriate repair.
2. Ignition OFF, disconnect the harness connector at the driver steering wheel air bag.
3. With the appropriate load tool adaptor, connect J 38715-A in place of the driver steering wheel air bag.
4. Ignition ON, with a scan tool, verify the appropriate DTC is set as current.
瀚慖f the DTC is not set or is set as history, cycle ignition OFF, disconnect the adapter and J 38715-A, reconnect the harness connector at the
driver steering wheel air bag, and cycle the ignition ON. If the DTC resets after reconnecting the air bag, then replace the driver steering
wheel air bag.
5. Ignition OFF, disconnect J 38715-A and the adaptor.
6. Disconnect the driver steering wheel air bag coil in-line connector.
7. With the appropriate load tool adaptor, connect special tool J 38715-A.
8. Ignition ON, with a scan tool, verify DTC is set as current.
瀚慖f DTC is not set or is set as history, replace the driver steering wheel air bag coil.
9. Ignition OFF, disconnect special tool J 38715-A and the adaptor.
10. Disconnect the harness connector at the SDM.
11. Ignition ON, test for less than 1 volt between the high circuit terminals listed below and ground.
* Driver steering wheel air bag coil connector Stage 1 terminal A X1
* Driver steering wheel air bag coil connector Stage 2 terminal A X2
瀚慖f greater than the specified range, test the circuit for a short to voltage.
12. Test for less than 1 volt between the low circuit terminals listed below and ground.
* Driver steering wheel air bag coil connector Stage 1 terminal B X1
* Driver steering wheel air bag coil connector Stage 2 terminal B X2
瀚慖f greater than the specified range, test the circuit for a short to voltage.
13. Ignition OFF, test for infinite resistance between the high circuit terminals listed below and ground.
* Driver steering wheel air bag coil connector Stage 1 terminal A X1
* Driver steering wheel air bag coil connector Stage 2 terminal A X2
瀚慖f less than the specified value, test the circuit for a short to ground.
14. Test for infinite resistance between the low circuit terminals listed below and ground.
* Driver steering wheel air bag coil connector Stage 1 terminal B X1
* Driver steering wheel air bag coil connector Stage 2 terminal B X2
瀚慖f less than the specified value, test the circuit for a short to ground.
15. Test for less then 1 ohm between the SDM connector and the air bag connector high circuit terminals listed below.
* Driver steering wheel air bag coil connector Stage 1 terminal A X1 and SDM terminal 4 X1.
Circuit/System Testing
Important: When removing connectors inspect for damage, corrosion or poor connection. Damage or corrosion to the following requires
repair or replacement of the affected component/connector:
* Driver steering wheel air bag
* SDM module
* Driver steering wheel air bag wiring harness connector
* SDM wiring harness connector
The connector and connector position assurance (CPA) may seat independent of each other. Both the connector and CPA should seat with
an audible and/or tactile click. The CPA isolates the shorting-bars within the connector allowing the deployment circuit to operate
properly.
1. Verify that the driver steering wheel air bag connector and CPA are engaged.
瀚慖f the above condition is not found, make the appropriate repair.
2. Ignition OFF, disconnect the harness connector at the driver steering wheel air bag.
3. With the appropriate load tool adaptor, connect J 38715-A in place of the driver steering wheel air bag.
4. Ignition ON, with a scan tool, verify the appropriate DTC is set as current.
瀚慖f the DTC is not set or is set as history, cycle ignition OFF, disconnect the adapter and J 38715-A, reconnect the harness connector at the
driver steering wheel air bag, and cycle the ignition ON. If the DTC resets after reconnecting the air bag, then replace the driver steering
wheel air bag.
5. Ignition OFF, disconnect J 38715-A and the adaptor.
6. Disconnect the driver steering wheel air bag coil in-line connector.
7. With the appropriate load tool adaptor, connect special tool J 38715-A.
8. Ignition ON, with a scan tool, verify DTC is set as current.
瀚慖f DTC is not set or is set as history, replace the driver steering wheel air bag coil.
9. Ignition OFF, disconnect special tool J 38715-A and the adaptor.
10. Disconnect the harness connector at the SDM.
11. Ignition ON, test for less than 1 volt between the high circuit terminals listed below and ground.
* Driver steering wheel air bag coil connector Stage 1 terminal A X1
* Driver steering wheel air bag coil connector Stage 2 terminal A X2
瀚慖f greater than the specified range, test the circuit for a short to voltage.
12. Test for less than 1 volt between the low circuit terminals listed below and ground.
* Driver steering wheel air bag coil connector Stage 1 terminal B X1
* Driver steering wheel air bag coil connector Stage 2 terminal B X2
瀚慖f greater than the specified range, test the circuit for a short to voltage.
13. Ignition OFF, test for infinite resistance between the high circuit terminals listed below and ground.
* Driver steering wheel air bag coil connector Stage 1 terminal A X1
* Driver steering wheel air bag coil connector Stage 2 terminal A X2
瀚慖f less than the specified value, test the circuit for a short to ground.
14. Test for infinite resistance between the low circuit terminals listed below and ground.
* Driver steering wheel air bag coil connector Stage 1 terminal B X1
* Driver steering wheel air bag coil connector Stage 2 terminal B X2
瀚慖f less than the specified value, test the circuit for a short to ground.
15. Test for less then 1 ohm between the SDM connector and the air bag connector high circuit terminals listed below.
* Driver steering wheel air bag coil connector Stage 1 terminal A X1 and SDM terminal 4 X1.
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 92
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 92
Conditions for Running the DTC
Ignition voltage is between 9-16 volts.
Conditions for Setting the DTC
B0012 01 Stage 1 or B0013 01 Stage 2
The driver steering wheel air bag high and/or low circuit is shorted to voltage for 120 milliseconds.
B0012 02 Stage 1 or B0013 02 Stage 2
The driver steering wheel air bag high and/or low circuit is shorted to ground for 120 milliseconds.
B0012 04 Stage 1 or B0013 04 Stage 2
The driver steering wheel air bag high and/or low circuit is open for 120 milliseconds.
B0012 0D Stage 1 or B0013 0D Stage 2
The driver steering wheel air bag deployment loop resistance is greater than 5.1 ohms for 120 milliseconds.
B0012 0E Stage 1 or B0013 0E Stage 2
The driver steering wheel air bag deployment loop resistance is less than 1.3 ohms for 120 milliseconds.
Action Taken When the DTC Sets
* The SDM requests the instrument panel cluster (IPC) to illuminate the AIR BAG indicator.
* The SDM will store a DTC, however if an event occurs the system will still attempt deployments.
Conditions for Clearing the DTC
* The condition for setting the DTC no longer exists.
* A history DTC will clear once 100 malfunction-free ignition cycles have occurred.
Diagnostic Aids
* When a harness connector is disconnected, the high control and low control circuits are shorted together by the integral shorting bar. This
should be taken into account when testing for faults on these circuits.
* This DTC usually indicates a poor connection or a wiring malfunction between the SDM and the deployment loop.
Reference Information
Schematic Reference
SIR Schematics (See: Diagrams/Electrical Diagrams/Air Bag Systems)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
SIR System Description and Operation (See: Restraints and Safety Systems/Air Bag Systems/Description and Operation)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Special Tools
J 38715-A SIR Driver/Passenger Load Tool
Conditions for Running the DTC
Ignition voltage is between 9-16 volts.
Conditions for Setting the DTC
B0012 01 Stage 1 or B0013 01 Stage 2
The driver steering wheel air bag high and/or low circuit is shorted to voltage for 120 milliseconds.
B0012 02 Stage 1 or B0013 02 Stage 2
The driver steering wheel air bag high and/or low circuit is shorted to ground for 120 milliseconds.
B0012 04 Stage 1 or B0013 04 Stage 2
The driver steering wheel air bag high and/or low circuit is open for 120 milliseconds.
B0012 0D Stage 1 or B0013 0D Stage 2
The driver steering wheel air bag deployment loop resistance is greater than 5.1 ohms for 120 milliseconds.
B0012 0E Stage 1 or B0013 0E Stage 2
The driver steering wheel air bag deployment loop resistance is less than 1.3 ohms for 120 milliseconds.
Action Taken When the DTC Sets
* The SDM requests the instrument panel cluster (IPC) to illuminate the AIR BAG indicator.
* The SDM will store a DTC, however if an event occurs the system will still attempt deployments.
Conditions for Clearing the DTC
* The condition for setting the DTC no longer exists.
* A history DTC will clear once 100 malfunction-free ignition cycles have occurred.
Diagnostic Aids
* When a harness connector is disconnected, the high control and low control circuits are shorted together by the integral shorting bar. This
should be taken into account when testing for faults on these circuits.
* This DTC usually indicates a poor connection or a wiring malfunction between the SDM and the deployment loop.
Reference Information
Schematic Reference
SIR Schematics (See: Diagrams/Electrical Diagrams/Air Bag Systems)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
SIR System Description and Operation (See: Restraints and Safety Systems/Air Bag Systems/Description and Operation)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Special Tools
J 38715-A SIR Driver/Passenger Load Tool
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 91
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 91
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning)for BCM replacement, setup, and programming
B0012
DTC B0012 or B0013
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC B0012 01
- Driver Steering Wheel Air Bag Deployment Loop Stage 1 Short to Battery
DTC B0012 02
- Driver Steering Wheel Air Bag Deployment Loop Stage 1 Short to Ground
DTC B0012 04
- Driver Steering Wheel Air Bag Deployment Loop Stage 1 Open Circuit
DTC B0012 0D
- Driver Steering Wheel Air Bag Deployment Loop Stage 1 Resistance Above Threshold
DTC B0012 0E
- Driver Steering Wheel Air Bag Deployment Loop Stage 1 Resistance Below Threshold
DTC B0013 01
- Driver Steering Wheel Air Bag Deployment Loop Stage 2 Short to Battery
DTC B0013 02
- Driver Steering Wheel Air Bag Deployment Loop Stage 2 Short to Ground
DTC B0013 04
- Driver Steering Wheel Air Bag Deployment Loop Stage 2 Open Circuit
DTC B0013 0D
- Driver Steering Wheel Air Bag Deployment Loop Stage 2 Resistance Above Threshold
DTC B0013 0E
- Driver Steering Wheel Air Bag Deployment Loop Stage 2 Resistance Below Threshold
Diagnostic Fault Information
Circuit/System Description
If a malfunction is detected, a DTC will be stored in non-volatile memory. During a frontal crash of sufficient force the inflatable restraint sensing
and diagnostic module (SDM) will allow current to flow through the deployment loop in order to deploy the driver steering wheel air bag. The
SDM performs continuous diagnostic tests on the deployment loops to check for proper circuit continuity and for shorts to ground or voltage.
There are 2 shorting bars used within each connector which will short together both driver steering wheel air bag stage 1 high circuit and driver
steering wheel air bag stage 1 low circuit and both driver steering wheel air bag stage 2 high circuit and driver steering wheel air bag stage 2 low
circuit when the connector is disconnected. This will help to prevent unwanted deployment of the air bag during servicing.
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning)for BCM replacement, setup, and programming
B0012
DTC B0012 or B0013
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC B0012 01
- Driver Steering Wheel Air Bag Deployment Loop Stage 1 Short to Battery
DTC B0012 02
- Driver Steering Wheel Air Bag Deployment Loop Stage 1 Short to Ground
DTC B0012 04
- Driver Steering Wheel Air Bag Deployment Loop Stage 1 Open Circuit
DTC B0012 0D
- Driver Steering Wheel Air Bag Deployment Loop Stage 1 Resistance Above Threshold
DTC B0012 0E
- Driver Steering Wheel Air Bag Deployment Loop Stage 1 Resistance Below Threshold
DTC B0013 01
- Driver Steering Wheel Air Bag Deployment Loop Stage 2 Short to Battery
DTC B0013 02
- Driver Steering Wheel Air Bag Deployment Loop Stage 2 Short to Ground
DTC B0013 04
- Driver Steering Wheel Air Bag Deployment Loop Stage 2 Open Circuit
DTC B0013 0D
- Driver Steering Wheel Air Bag Deployment Loop Stage 2 Resistance Above Threshold
DTC B0013 0E
- Driver Steering Wheel Air Bag Deployment Loop Stage 2 Resistance Below Threshold
Diagnostic Fault Information
Circuit/System Description
If a malfunction is detected, a DTC will be stored in non-volatile memory. During a frontal crash of sufficient force the inflatable restraint sensing
and diagnostic module (SDM) will allow current to flow through the deployment loop in order to deploy the driver steering wheel air bag. The
SDM performs continuous diagnostic tests on the deployment loops to check for proper circuit continuity and for shorts to ground or voltage.
There are 2 shorting bars used within each connector which will short together both driver steering wheel air bag stage 1 high circuit and driver
steering wheel air bag stage 1 low circuit and both driver steering wheel air bag stage 2 high circuit and driver steering wheel air bag stage 2 low
circuit when the connector is disconnected. This will help to prevent unwanted deployment of the air bag during servicing.
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 90
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 90
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions)provides an overview of each diagnostic category.
DTC Descriptor
DTC B0010 00
- Reverse Gear Signal Circuit
Circuit/System Description
The body control module (BCM) supplies B+ to the rearview camera when the transmission is placed into reverse.
Conditions for Running the DTC
Ignition voltage is between 9-16 volts
Conditions for Setting the DTC
The BCM detects there is a short to ground or an open circuit.
Action Taken When the DTC Sets
Rearview camera is disabled.
Conditions for Clearing
* The DTC will transition to history when the fault is no longer present.
* A history DTC will clear after 100 malfunction-free ignition cycles.
Reference Information
Schematic Reference
Object Detection Schematics (See: Accessories and Optional Equipment/Collision Avoidance and Parking Assist Systems/Diagrams/Electrical
Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Object Detection Description and Operation (UFT) (See: Accessories and Optional Equipment/Collision Avoidance and Parking Assist
Systems/Description and Operation/Object Detection Description and Operation (UFT))Object Detection Description and Operation (UVC) (See:
Accessories and Optional Equipment/Collision Avoidance and Parking Assist Systems/Description and Operation/Object Detection Description and
Operation (UVC))Object Detection Description and Operation (UD7) (See: Accessories and Optional Equipment/Collision Avoidance and
Parking Assist Systems/Description and Operation/Object Detection Description and Operation (UD7))
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the rearview camera.
2. Ignition ON, park brake applied, transmission in REVERSE, test for B+ between the B+ circuit terminal 3 and ground.
瀚慖f less than the specified value, test the B+ circuit for a short to ground or an open/high resistance.
3. If all circuits test normal, replace the BCM.
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions)provides an overview of each diagnostic category.
DTC Descriptor
DTC B0010 00
- Reverse Gear Signal Circuit
Circuit/System Description
The body control module (BCM) supplies B+ to the rearview camera when the transmission is placed into reverse.
Conditions for Running the DTC
Ignition voltage is between 9-16 volts
Conditions for Setting the DTC
The BCM detects there is a short to ground or an open circuit.
Action Taken When the DTC Sets
Rearview camera is disabled.
Conditions for Clearing
* The DTC will transition to history when the fault is no longer present.
* A history DTC will clear after 100 malfunction-free ignition cycles.
Reference Information
Schematic Reference
Object Detection Schematics (See: Accessories and Optional Equipment/Collision Avoidance and Parking Assist Systems/Diagrams/Electrical
Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Object Detection Description and Operation (UFT) (See: Accessories and Optional Equipment/Collision Avoidance and Parking Assist
Systems/Description and Operation/Object Detection Description and Operation (UFT))Object Detection Description and Operation (UVC) (See:
Accessories and Optional Equipment/Collision Avoidance and Parking Assist Systems/Description and Operation/Object Detection Description and
Operation (UVC))Object Detection Description and Operation (UD7) (See: Accessories and Optional Equipment/Collision Avoidance and
Parking Assist Systems/Description and Operation/Object Detection Description and Operation (UD7))
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the rearview camera.
2. Ignition ON, park brake applied, transmission in REVERSE, test for B+ between the B+ circuit terminal 3 and ground.
瀚慖f less than the specified value, test the B+ circuit for a short to ground or an open/high resistance.
3. If all circuits test normal, replace the BCM.
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 9
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 9
B3873 - C0045
C Code List
Diagnostic Trouble Code (DTC) List - Vehicle
This master DTC list includes all applicable DTCs in alphanumeric order with descriptors.
B3873 - C0045
C Code List
Diagnostic Trouble Code (DTC) List - Vehicle
This master DTC list includes all applicable DTCs in alphanumeric order with descriptors.
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 89
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 89
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
1. Verify that DTC B009F 00, B009F 4A, or B009F 73 is not set.
瀚慖f the DTC is set, program the serial data gateway module. If the DTC resets, replace the serial data gateway module.
2. Verify the serial data gateway module is programmed with the correct software calibration.
瀚慖f the correct software is not installed, program the serial data gateway module.
3. Ignition ON, observe the scan tool Hybrid Crash Sensor 1 parameter. The reading should be No Crash.
瀚慖f not No Crash, refer to Circuit/System Testing.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the high voltage circuit impact detector sensor.
2. Ignition OFF and scan tool disconnected, open and close the driver door, and wait 1 minute. Test for less than 5 ohm between the low
reference circuit terminal 2 and ground.
瀚慖f greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the serial
data gateway module.
Note: The serial data gateway module will attempt to communicate with the high voltage circuit impact detector sensor for 5 seconds
immediately after the ignition is turned ON. After 5 seconds the signal circuit will be inactive.
Note: The DMM should not be set on the Auto Range scale. The Auto Range will give erratic test results.
3. Connect a DMM, set on a manual setting that can read 12 V with the MIN/MAX function enabled, between the signal circuit terminal 1 and
ground.
4. Ignition ON, wait 10 seconds, The DMM reading should be less than 1.0 V.
瀚慖f greater than the specified range, test the circuit for a short to voltage. If the circuit tests normal, replace the serial data gateway module.
5. Verify the DMM MAX reading is greater than 6.0 V.
瀚慖f less than the specified range, test the circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the
serial data gateway module.
6. If all circuits test normal, test or replace the high voltage circuit impact detector sensor.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* High Voltage Circuit Impact Detection Sensor Replacement ()
* Control Module References (See: Testing and Inspection/Programming and Relearning) for serial data gateway module replacement, setup,
and programming
B0010
DTC B0010
Diagnostic Instructions
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
1. Verify that DTC B009F 00, B009F 4A, or B009F 73 is not set.
瀚慖f the DTC is set, program the serial data gateway module. If the DTC resets, replace the serial data gateway module.
2. Verify the serial data gateway module is programmed with the correct software calibration.
瀚慖f the correct software is not installed, program the serial data gateway module.
3. Ignition ON, observe the scan tool Hybrid Crash Sensor 1 parameter. The reading should be No Crash.
瀚慖f not No Crash, refer to Circuit/System Testing.
Circuit/System Testing
1. Ignition OFF, disconnect the harness connector at the high voltage circuit impact detector sensor.
2. Ignition OFF and scan tool disconnected, open and close the driver door, and wait 1 minute. Test for less than 5 ohm between the low
reference circuit terminal 2 and ground.
瀚慖f greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the serial
data gateway module.
Note: The serial data gateway module will attempt to communicate with the high voltage circuit impact detector sensor for 5 seconds
immediately after the ignition is turned ON. After 5 seconds the signal circuit will be inactive.
Note: The DMM should not be set on the Auto Range scale. The Auto Range will give erratic test results.
3. Connect a DMM, set on a manual setting that can read 12 V with the MIN/MAX function enabled, between the signal circuit terminal 1 and
ground.
4. Ignition ON, wait 10 seconds, The DMM reading should be less than 1.0 V.
瀚慖f greater than the specified range, test the circuit for a short to voltage. If the circuit tests normal, replace the serial data gateway module.
5. Verify the DMM MAX reading is greater than 6.0 V.
瀚慖f less than the specified range, test the circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace the
serial data gateway module.
6. If all circuits test normal, test or replace the high voltage circuit impact detector sensor.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* High Voltage Circuit Impact Detection Sensor Replacement ()
* Control Module References (See: Testing and Inspection/Programming and Relearning) for serial data gateway module replacement, setup,
and programming
B0010
DTC B0010
Diagnostic Instructions
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 88
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 88
serves as a power source and a ground for the high voltage circuit impact detector sensor. When the ignition is turned ON and input power from the
serial data gateway module is first detected, the high voltage circuit impact detector sensor responds by performing internal diagnostics and sending
an ID to the serial data gateway module. The high voltage circuit impact detector sensor continually communicates status messages to the serial
data gateway module,
Conditions for Running the DTC
* The ignition is ON.
* The battery voltage is 7.5-18 V.
Conditions for Setting the DTC
B009F 00
The serial data gateway module is not programmed to use high voltage circuit impact detector sensor 1.
B009F 11
The high voltage circuit impact detector sensor signal circuit is shorted to voltage for 2.5 seconds.
B009F 12
The high voltage circuit impact detector sensor signal circuit is shorted to ground for 2.5 seconds.
B009F 39
The serial data gateway module has not received a valid state of health message from the high voltage circuit impact detector sensor for 2.5
seconds.
B009F 3A
The wrong high voltage circuit impact detector sensor has been installed.
B009F 4A
The serial data gateway module calibration does not match the vehicle configuration.
B009F 73
The serial data gateway module has received invalid serial data from the high voltage circuit impact detector sensor.
Action Taken When the DTC Sets
The driver information center (DIC) displays the SERVICE HYBRID SYSTEM message.
Conditions for Clearing the DTC
* A current DTC clears when the malfunction is no longer present.
* The DIC message turns OFF when the DTC passes.
* A history DTC clears when the module ignition cycle counter reaches the reset threshold of 50, without a repeat of the malfunction.
Diagnostic Aids
* The high voltage circuit impact detector sensor has many different internal configurations in the same external package. Ensure that the
correct sensor part number is installed with the correct software programmed in the serial data gateway module.
* Turn the ignition OFF for 1 minute before using a scan tool to clear the DTC from the serial data gateway module. If the ignition is not OFF
for 1 minute, the DTC may not clear.
Reference Information
Schematic Reference
Data Communication Schematics (See: Powertrain Management/Computers and Control Systems/Information Bus/Diagrams/Electrical Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Drive Motor Generator Control Module Description and Operation ()
Electrical Information Reference
serves as a power source and a ground for the high voltage circuit impact detector sensor. When the ignition is turned ON and input power from the
serial data gateway module is first detected, the high voltage circuit impact detector sensor responds by performing internal diagnostics and sending
an ID to the serial data gateway module. The high voltage circuit impact detector sensor continually communicates status messages to the serial
data gateway module,
Conditions for Running the DTC
* The ignition is ON.
* The battery voltage is 7.5-18 V.
Conditions for Setting the DTC
B009F 00
The serial data gateway module is not programmed to use high voltage circuit impact detector sensor 1.
B009F 11
The high voltage circuit impact detector sensor signal circuit is shorted to voltage for 2.5 seconds.
B009F 12
The high voltage circuit impact detector sensor signal circuit is shorted to ground for 2.5 seconds.
B009F 39
The serial data gateway module has not received a valid state of health message from the high voltage circuit impact detector sensor for 2.5
seconds.
B009F 3A
The wrong high voltage circuit impact detector sensor has been installed.
B009F 4A
The serial data gateway module calibration does not match the vehicle configuration.
B009F 73
The serial data gateway module has received invalid serial data from the high voltage circuit impact detector sensor.
Action Taken When the DTC Sets
The driver information center (DIC) displays the SERVICE HYBRID SYSTEM message.
Conditions for Clearing the DTC
* A current DTC clears when the malfunction is no longer present.
* The DIC message turns OFF when the DTC passes.
* A history DTC clears when the module ignition cycle counter reaches the reset threshold of 50, without a repeat of the malfunction.
Diagnostic Aids
* The high voltage circuit impact detector sensor has many different internal configurations in the same external package. Ensure that the
correct sensor part number is installed with the correct software programmed in the serial data gateway module.
* Turn the ignition OFF for 1 minute before using a scan tool to clear the DTC from the serial data gateway module. If the ignition is not OFF
for 1 minute, the DTC may not clear.
Reference Information
Schematic Reference
Data Communication Schematics (See: Powertrain Management/Computers and Control Systems/Information Bus/Diagrams/Electrical Diagrams)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Drive Motor Generator Control Module Description and Operation ()
Electrical Information Reference
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 87
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 87
If any of the DTCs are set, program the serial data gateway module. If any of the DTCs reset, replace the serial data gateway module.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for serial data gateway module replacement, setup, and
programming
B009F
DTC B009F
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC B009F 00
- High Voltage Crash Impact Detection Sensor 1 No Additional Information
DTC B009F 11
- High Voltage Crash Impact Detection Sensor 1 Above Maximum Threshold
DTC B009F 12
- High Voltage Crash Impact Detection Sensor 1 Below Minimum Threshold
DTC B009F 39
- High Voltage Crash Impact Detection Sensor 1 Internal Electronic Failure
DTC B009F 3A
- High Voltage Crash Impact Detection Sensor 1 Incorrect Component Installed
DTC B009F 4A
- High Voltage Crash Impact Detection Sensor 1 Checksum Error
DTC B009F 73
- High Voltage Crash Impact Detection Sensor 1 Parity Error
Diagnostic Fault Information
Typical Scan Tool Data
Circuit/System Description
The high voltage circuit impact detector sensor utilizes a unidirectional 2-wire circuit. The high voltage circuit impact detector sensor modulates
current on the circuit interface to send ID, state of health, and collision status to the serial data gateway module. The serial data gateway module
If any of the DTCs are set, program the serial data gateway module. If any of the DTCs reset, replace the serial data gateway module.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for serial data gateway module replacement, setup, and
programming
B009F
DTC B009F
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC B009F 00
- High Voltage Crash Impact Detection Sensor 1 No Additional Information
DTC B009F 11
- High Voltage Crash Impact Detection Sensor 1 Above Maximum Threshold
DTC B009F 12
- High Voltage Crash Impact Detection Sensor 1 Below Minimum Threshold
DTC B009F 39
- High Voltage Crash Impact Detection Sensor 1 Internal Electronic Failure
DTC B009F 3A
- High Voltage Crash Impact Detection Sensor 1 Incorrect Component Installed
DTC B009F 4A
- High Voltage Crash Impact Detection Sensor 1 Checksum Error
DTC B009F 73
- High Voltage Crash Impact Detection Sensor 1 Parity Error
Diagnostic Fault Information
Typical Scan Tool Data
Circuit/System Description
The high voltage circuit impact detector sensor utilizes a unidirectional 2-wire circuit. The high voltage circuit impact detector sensor modulates
current on the circuit interface to send ID, state of health, and collision status to the serial data gateway module. The serial data gateway module
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 86
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 86
Verify that DTC B008A or B008B is not set.
If any of the DTCs are set, program the serial data gateway module. If any of the DTCs reset, replace the serial data gateway module.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for serial data gateway module replacement, setup, and
programming
B008B
DTC B008A or B008B
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptor
DTC B008A 00
- High Voltage Crash Impact Detection Sensor 2
DTC B008B 00
- High Voltage Crash Impact Detection Sensor 3
Circuit/System Description
The high voltage circuit impact detector sensor utilizes a unidirectional 2-wire circuit. The high voltage circuit impact detector sensor modulates
current on the circuit interface to send ID, state of health, and deployment commands to the serial data gateway module. The serial data gateway
module serves as a power source and a ground for the high voltage circuit impact detector sensor. When the ignition is turned ON and input power
from the serial data gateway module is first detected, the high voltage circuit impact detector sensor responds by performing internal diagnostics
and sending an ID to the serial data gateway module. The high voltage circuit impact detector sensor continually communicates status messages to
the serial data gateway module. Some applications use multiple high voltage circuit impact detector sensors.
This vehicle does not use crash sensor 2 or 3. These DTCs can only set if the incorrect software is installed in the serial data gateway module.
Conditions for Running the DTC
* The ignition is ON.
* The battery voltage is 7.5-18 V.
Conditions for Setting the DTC
B008A 00 or B008B 00
Sensor 2 or 3 is reporting a state-of-health message, but the serial data gateway module is not calibrated to use sensor 2 or 3.
Action Taken When the DTC Sets
The driver information center (DIC) displays the SERVICE HYBRID SYSTEM message.
Conditions for Clearing the DTC
* A current DTC clears when the malfunction is no longer present.
* The DIC message turns OFF when the DTC passes.
* A history DTC clears when the module ignition cycle counter reaches the reset threshold of 50, without a repeat of the malfunction.
Circuit/System Verification
Verify that DTC B008A or B008B is not set.
Verify that DTC B008A or B008B is not set.
If any of the DTCs are set, program the serial data gateway module. If any of the DTCs reset, replace the serial data gateway module.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for serial data gateway module replacement, setup, and
programming
B008B
DTC B008A or B008B
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptor
DTC B008A 00
- High Voltage Crash Impact Detection Sensor 2
DTC B008B 00
- High Voltage Crash Impact Detection Sensor 3
Circuit/System Description
The high voltage circuit impact detector sensor utilizes a unidirectional 2-wire circuit. The high voltage circuit impact detector sensor modulates
current on the circuit interface to send ID, state of health, and deployment commands to the serial data gateway module. The serial data gateway
module serves as a power source and a ground for the high voltage circuit impact detector sensor. When the ignition is turned ON and input power
from the serial data gateway module is first detected, the high voltage circuit impact detector sensor responds by performing internal diagnostics
and sending an ID to the serial data gateway module. The high voltage circuit impact detector sensor continually communicates status messages to
the serial data gateway module. Some applications use multiple high voltage circuit impact detector sensors.
This vehicle does not use crash sensor 2 or 3. These DTCs can only set if the incorrect software is installed in the serial data gateway module.
Conditions for Running the DTC
* The ignition is ON.
* The battery voltage is 7.5-18 V.
Conditions for Setting the DTC
B008A 00 or B008B 00
Sensor 2 or 3 is reporting a state-of-health message, but the serial data gateway module is not calibrated to use sensor 2 or 3.
Action Taken When the DTC Sets
The driver information center (DIC) displays the SERVICE HYBRID SYSTEM message.
Conditions for Clearing the DTC
* A current DTC clears when the malfunction is no longer present.
* The DIC message turns OFF when the DTC passes.
* A history DTC clears when the module ignition cycle counter reaches the reset threshold of 50, without a repeat of the malfunction.
Circuit/System Verification
Verify that DTC B008A or B008B is not set.
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 85
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 85
3. Ignition ON, transmission in PARK, verify the test lamp does not illuminate.
瀚慖f the test lamp illuminates, test for a short to ground on the park enable signal circuit. If the circuit tests normal and the DTC is current,
replace the BCM.
4. If the circuit tests normal and the DTC is current, test or replace the park enable PCB relay.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Instrument Panel Electrical Center or Junction Block Replacement - Left Side (See: Maintenance/Fuses and Circuit Breakers/Fuse
Block/Service and Repair/Removal and Replacement/Instrument Panel Electrical Center or Junction Block Replacement - Left Side)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for module replacement, setup, and programming
B008A
DTC B008A or B008B
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptor
DTC B008A 00
- High Voltage Crash Impact Detection Sensor 2
DTC B008B 00
- High Voltage Crash Impact Detection Sensor 3
Circuit/System Description
The high voltage circuit impact detector sensor utilizes a unidirectional 2-wire circuit. The high voltage circuit impact detector sensor modulates
current on the circuit interface to send ID, state of health, and deployment commands to the serial data gateway module. The serial data gateway
module serves as a power source and a ground for the high voltage circuit impact detector sensor. When the ignition is turned ON and input power
from the serial data gateway module is first detected, the high voltage circuit impact detector sensor responds by performing internal diagnostics
and sending an ID to the serial data gateway module. The high voltage circuit impact detector sensor continually communicates status messages to
the serial data gateway module. Some applications use multiple high voltage circuit impact detector sensors.
This vehicle does not use crash sensor 2 or 3. These DTCs can only set if the incorrect software is installed in the serial data gateway module.
Conditions for Running the DTC
* The ignition is ON.
* The battery voltage is 7.5-18 V.
Conditions for Setting the DTC
B008A 00 or B008B 00
Sensor 2 or 3 is reporting a state-of-health message, but the serial data gateway module is not calibrated to use sensor 2 or 3.
Action Taken When the DTC Sets
The driver information center (DIC) displays the SERVICE HYBRID SYSTEM message.
Conditions for Clearing the DTC
* A current DTC clears when the malfunction is no longer present.
* The DIC message turns OFF when the DTC passes.
* A history DTC clears when the module ignition cycle counter reaches the reset threshold of 50, without a repeat of the malfunction.
Circuit/System Verification
3. Ignition ON, transmission in PARK, verify the test lamp does not illuminate.
瀚慖f the test lamp illuminates, test for a short to ground on the park enable signal circuit. If the circuit tests normal and the DTC is current,
replace the BCM.
4. If the circuit tests normal and the DTC is current, test or replace the park enable PCB relay.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Instrument Panel Electrical Center or Junction Block Replacement - Left Side (See: Maintenance/Fuses and Circuit Breakers/Fuse
Block/Service and Repair/Removal and Replacement/Instrument Panel Electrical Center or Junction Block Replacement - Left Side)
* Control Module References (See: Testing and Inspection/Programming and Relearning) for module replacement, setup, and programming
B008A
DTC B008A or B008B
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptor
DTC B008A 00
- High Voltage Crash Impact Detection Sensor 2
DTC B008B 00
- High Voltage Crash Impact Detection Sensor 3
Circuit/System Description
The high voltage circuit impact detector sensor utilizes a unidirectional 2-wire circuit. The high voltage circuit impact detector sensor modulates
current on the circuit interface to send ID, state of health, and deployment commands to the serial data gateway module. The serial data gateway
module serves as a power source and a ground for the high voltage circuit impact detector sensor. When the ignition is turned ON and input power
from the serial data gateway module is first detected, the high voltage circuit impact detector sensor responds by performing internal diagnostics
and sending an ID to the serial data gateway module. The high voltage circuit impact detector sensor continually communicates status messages to
the serial data gateway module. Some applications use multiple high voltage circuit impact detector sensors.
This vehicle does not use crash sensor 2 or 3. These DTCs can only set if the incorrect software is installed in the serial data gateway module.
Conditions for Running the DTC
* The ignition is ON.
* The battery voltage is 7.5-18 V.
Conditions for Setting the DTC
B008A 00 or B008B 00
Sensor 2 or 3 is reporting a state-of-health message, but the serial data gateway module is not calibrated to use sensor 2 or 3.
Action Taken When the DTC Sets
The driver information center (DIC) displays the SERVICE HYBRID SYSTEM message.
Conditions for Clearing the DTC
* A current DTC clears when the malfunction is no longer present.
* The DIC message turns OFF when the DTC passes.
* A history DTC clears when the module ignition cycle counter reaches the reset threshold of 50, without a repeat of the malfunction.
Circuit/System Verification
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 84
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 84
Circuit/System Description
The second row power fold and tumble seats and the electronic adjustable pedals (when RPO AN3 Driver Memory Seat is not used) may only
operate while the vehicle is in Park. When the body control module detects the vehicle is NOT in park it will enable the Park Enable PCB Relay by
providing power to the relay control circuit. When the relay is enabled the electrical power feed to the adjustable pedals and second row power fold
and tumble seats is eliminated. Once the vehicle is shifted into Park the BCM will disable the Park Enable PCB Relay and the electrical power feed
to the adjustable pedals and second row power fold and tumble seats is enabled.
Conditions for Running the DTC
* The system voltage is at least 9.0 V and no more than 16.0 V.
* The DTC will only set when the output is actively being requested by the module.
Conditions for Setting the DTC
The DTC will set when the module requests the output and there is a short to ground.
Action Taken When the DTC Sets
The module output driver will be shut down and not supply voltage to the circuit.
Conditions for Clearing the DTC
* The current DTC will go to history when a malfunction is no longer present.
* The BCM clears the history DTC when a current DTC is not detected in 50 ignition cycles.
Reference Information
Schematic Reference
* Adjustable Pedal Schematics (See: Accessories and Optional Equipment/Pedal Positioning System/Diagrams/Electrical Diagrams)
* Rear Seat Schematics ()
* Upfitter Provision Schematics (See: Diagrams/Electrical Diagrams/Starting and Charging/Power and Ground Distribution/System
Diagram/Upfitter Provision Schematics)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
* Adjustable Pedals Description and Operation (with Memory) (See: Accessories and Optional Equipment/Pedal Positioning
System/Description and Operation/Adjustable Pedals Description and Operation (with Memory))Adjustable Pedals Description and
Operation (w/o Memory) (See: Accessories and Optional Equipment/Pedal Positioning System/Description and Operation/Adjustable
Pedals Description and Operation (w/o Memory))
* Power Seats System Description and Operation (Front Seat) ()Power Seats System Description and Operation (Rear Folding Seat) ()
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Circuit/System Testing
1. Ignition OFF, disconnect the park enable PCB relay.
2. Connect a test lamp between the park enable signal circuit and battery positive voltage.
Circuit/System Description
The second row power fold and tumble seats and the electronic adjustable pedals (when RPO AN3 Driver Memory Seat is not used) may only
operate while the vehicle is in Park. When the body control module detects the vehicle is NOT in park it will enable the Park Enable PCB Relay by
providing power to the relay control circuit. When the relay is enabled the electrical power feed to the adjustable pedals and second row power fold
and tumble seats is eliminated. Once the vehicle is shifted into Park the BCM will disable the Park Enable PCB Relay and the electrical power feed
to the adjustable pedals and second row power fold and tumble seats is enabled.
Conditions for Running the DTC
* The system voltage is at least 9.0 V and no more than 16.0 V.
* The DTC will only set when the output is actively being requested by the module.
Conditions for Setting the DTC
The DTC will set when the module requests the output and there is a short to ground.
Action Taken When the DTC Sets
The module output driver will be shut down and not supply voltage to the circuit.
Conditions for Clearing the DTC
* The current DTC will go to history when a malfunction is no longer present.
* The BCM clears the history DTC when a current DTC is not detected in 50 ignition cycles.
Reference Information
Schematic Reference
* Adjustable Pedal Schematics (See: Accessories and Optional Equipment/Pedal Positioning System/Diagrams/Electrical Diagrams)
* Rear Seat Schematics ()
* Upfitter Provision Schematics (See: Diagrams/Electrical Diagrams/Starting and Charging/Power and Ground Distribution/System
Diagram/Upfitter Provision Schematics)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
* Adjustable Pedals Description and Operation (with Memory) (See: Accessories and Optional Equipment/Pedal Positioning
System/Description and Operation/Adjustable Pedals Description and Operation (with Memory))Adjustable Pedals Description and
Operation (w/o Memory) (See: Accessories and Optional Equipment/Pedal Positioning System/Description and Operation/Adjustable
Pedals Description and Operation (w/o Memory))
* Power Seats System Description and Operation (Front Seat) ()Power Seats System Description and Operation (Rear Folding Seat) ()
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Circuit/System Testing
1. Ignition OFF, disconnect the park enable PCB relay.
2. Connect a test lamp between the park enable signal circuit and battery positive voltage.
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 83
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 83
* The condition responsible for setting the DTC no longer exists.
* A history DTC clears after 100 malfunction-free ignition cycles.
Reference Information
Schematic Reference
Radio/Navigation System Schematics (See: Accessories and Optional Equipment/Diagrams/Electrical Diagrams/Radio/Navigation System
Schematics)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Navigation System Description and Operation (See: Accessories and Optional Equipment/Description and Operation/Navigation System
Description and Operation)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Testing
Important: Diagnose any antilock brake system (ABS) related DTCs before performing this diagnostic.
1. Ignition OFF, disconnect the X4 harness connector at the radio.
2. Ignition ON, operate the vehicle drive wheels at 5 mph. Test for 3-7 Hertz between the VSS circuit terminal 5 and ground.
瀚慖f not within the specified range, test the VSS circuit for an open, high resistance, short to ground or short to voltage. If the circuit tests
normal replace the EBCM.
3. If the circuit tests normal, replace the radio.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for radio or EBCM replacement, setup, and programming
B0005
DTC B0005
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptor
DTC B0005 00
- In Park Signal Circuit
Diagnostic Fault Information
* The condition responsible for setting the DTC no longer exists.
* A history DTC clears after 100 malfunction-free ignition cycles.
Reference Information
Schematic Reference
Radio/Navigation System Schematics (See: Accessories and Optional Equipment/Diagrams/Electrical Diagrams/Radio/Navigation System
Schematics)
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Navigation System Description and Operation (See: Accessories and Optional Equipment/Description and Operation/Navigation System
Description and Operation)
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Testing
Important: Diagnose any antilock brake system (ABS) related DTCs before performing this diagnostic.
1. Ignition OFF, disconnect the X4 harness connector at the radio.
2. Ignition ON, operate the vehicle drive wheels at 5 mph. Test for 3-7 Hertz between the VSS circuit terminal 5 and ground.
瀚慖f not within the specified range, test the VSS circuit for an open, high resistance, short to ground or short to voltage. If the circuit tests
normal replace the EBCM.
3. If the circuit tests normal, replace the radio.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
Control Module References (See: Testing and Inspection/Programming and Relearning) for radio or EBCM replacement, setup, and programming
B0005
DTC B0005
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptor
DTC B0005 00
- In Park Signal Circuit
Diagnostic Fault Information
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 82
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 82
Non-Emissions Related DTCs
Action Taken When the DTC Sets - Type C
* The control module stores the DTC information into memory when the diagnostic runs and fails.
* The MIL will not illuminate.
* The control module records the operating conditions at the time the diagnostic fails. The control module stores this information in the Failure
Records.
* The driver information center, if equipped, may display a message.
Conditions for Clearing the DTC - Type C
* A current DTC Last Test Failed clears when the diagnostic runs and passes.
* A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other non-emission related diagnostic.
* Clear the DTC with a scan tool.
Action Taken When the DTC Sets - Type D
* The control module will take default actions but no DTC will be stored in Failure Records.
* The MIL or SVS will not illuminate.
Conditions for Clearing the DTC - Type D
Clear the DTC with a scan tool.
B0000
DTC B0000
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptor
DTC B0000 5A
- Vehicle Speed Information Circuit Plausibility Failure
Diagnostic Fault Information
Circuit/System Description
The radio receives a vehicle speed signal from the electronic brake control module (EBCM) in order to correlate actual vehicle speed to the
movement of the vehicle calculated by the navigation system and reported serial data.
Conditions for Running the DTC
* Radio ON.
* Battery voltage must be between 9-16 volts.
Conditions for Setting the DTC
* Vehicle speed from serial data is more than 5 km/h (3 mph) and vehicle speed pulse from the EBCM is 0 km/h (0 mph).
* Vehicle speed calculated from the navigation processing software is more than 36 km/h (22 mph) and vehicle speed pulse from the EBCM is
0 km/h (0 mph) for 10 seconds continuously.
Action Taken When the DTC Sets
* Turn by turn route navigation may be inoperative.
* Vehicle indicated location may be inaccurate.
Conditions for Clearing the DTC
Non-Emissions Related DTCs
Action Taken When the DTC Sets - Type C
* The control module stores the DTC information into memory when the diagnostic runs and fails.
* The MIL will not illuminate.
* The control module records the operating conditions at the time the diagnostic fails. The control module stores this information in the Failure
Records.
* The driver information center, if equipped, may display a message.
Conditions for Clearing the DTC - Type C
* A current DTC Last Test Failed clears when the diagnostic runs and passes.
* A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other non-emission related diagnostic.
* Clear the DTC with a scan tool.
Action Taken When the DTC Sets - Type D
* The control module will take default actions but no DTC will be stored in Failure Records.
* The MIL or SVS will not illuminate.
Conditions for Clearing the DTC - Type D
Clear the DTC with a scan tool.
B0000
DTC B0000
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptor
DTC B0000 5A
- Vehicle Speed Information Circuit Plausibility Failure
Diagnostic Fault Information
Circuit/System Description
The radio receives a vehicle speed signal from the electronic brake control module (EBCM) in order to correlate actual vehicle speed to the
movement of the vehicle calculated by the navigation system and reported serial data.
Conditions for Running the DTC
* Radio ON.
* Battery voltage must be between 9-16 volts.
Conditions for Setting the DTC
* Vehicle speed from serial data is more than 5 km/h (3 mph) and vehicle speed pulse from the EBCM is 0 km/h (0 mph).
* Vehicle speed calculated from the navigation processing software is more than 36 km/h (22 mph) and vehicle speed pulse from the EBCM is
0 km/h (0 mph) for 10 seconds continuously.
Action Taken When the DTC Sets
* Turn by turn route navigation may be inoperative.
* Vehicle indicated location may be inaccurate.
Conditions for Clearing the DTC
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 81
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 81
U2166 - U2181
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Emissions Related DTCs
Action Taken When the DTC Sets - Type A
* The control module illuminates the malfunction indicator lamp (MIL) when the diagnostic runs and fails.
* The control module records the operating conditions at the time the diagnostic fails. The control module stores this information in the Freeze
Frame/Failure Records.
Action Taken When the DTC Sets - Type B
* The control module illuminates the MIL on the second consecutive ignition cycle that the diagnostic runs and fails.
* The control module records the operating conditions at the time the diagnostic fails. The first time the diagnostic fails, the control module
stores this information in the Failure Records. If the diagnostic reports a failure on the second consecutive ignition cycle, the control module
records the operating conditions at the time of the failure. The control module writes the operating conditions to the Freeze Frame and
updates the Failure Records.
* The following applies to misfire DTCs:
- If the control module detects a low level or an emission level misfire condition during 2 consecutive trips, the control module illuminates
the MIL.
- If the control module detects a high level or catalyst damaging misfire, the control module flashes the MIL at a rate of once per second.
- If the control module detects a misfire during 2 non-consecutive trips, the stored conditions are compared with the current conditions. The
control module illuminates the MIL when the following conditions occur:
* The engine load is within 20 percent of the previous test that failed.
* The engine speed is within 375 RPM of the previous test that failed.
* The engine coolant temperature is in the same range of the previous test that failed.
* The following applies to fuel trim DTCs:
- If the control module detects a fuel trim condition during 2 consecutive trips, the control module illuminates the MIL.
- If the control module detects a fuel trim condition during 2 non-consecutive trips, the stored conditions are compared with the current
conditions. The control module illuminates the MIL when the following conditions occur:
* The engine load is within 20 percent of the previous test that failed.
* The engine speed is within 375 RPM of the previous test that failed.
* The engine coolant temperature is in the same range of the previous test that failed.
Conditions for Clearing the MIL/DTC - Type A or Type B
* The control module turns OFF the MIL after 4 consecutive ignition cycles that the diagnostic runs and does not fail.
* A current DTC, Last Test Failed, clears when the diagnostic runs and passes.
* A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other emission related diagnostic.
* Clear the MIL and the DTC with a scan tool.
U2166 - U2181
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Powertrain Diagnostic Trouble Code (DTC) Type Definitions
Emissions Related DTCs
Action Taken When the DTC Sets - Type A
* The control module illuminates the malfunction indicator lamp (MIL) when the diagnostic runs and fails.
* The control module records the operating conditions at the time the diagnostic fails. The control module stores this information in the Freeze
Frame/Failure Records.
Action Taken When the DTC Sets - Type B
* The control module illuminates the MIL on the second consecutive ignition cycle that the diagnostic runs and fails.
* The control module records the operating conditions at the time the diagnostic fails. The first time the diagnostic fails, the control module
stores this information in the Failure Records. If the diagnostic reports a failure on the second consecutive ignition cycle, the control module
records the operating conditions at the time of the failure. The control module writes the operating conditions to the Freeze Frame and
updates the Failure Records.
* The following applies to misfire DTCs:
- If the control module detects a low level or an emission level misfire condition during 2 consecutive trips, the control module illuminates
the MIL.
- If the control module detects a high level or catalyst damaging misfire, the control module flashes the MIL at a rate of once per second.
- If the control module detects a misfire during 2 non-consecutive trips, the stored conditions are compared with the current conditions. The
control module illuminates the MIL when the following conditions occur:
* The engine load is within 20 percent of the previous test that failed.
* The engine speed is within 375 RPM of the previous test that failed.
* The engine coolant temperature is in the same range of the previous test that failed.
* The following applies to fuel trim DTCs:
- If the control module detects a fuel trim condition during 2 consecutive trips, the control module illuminates the MIL.
- If the control module detects a fuel trim condition during 2 non-consecutive trips, the stored conditions are compared with the current
conditions. The control module illuminates the MIL when the following conditions occur:
* The engine load is within 20 percent of the previous test that failed.
* The engine speed is within 375 RPM of the previous test that failed.
* The engine coolant temperature is in the same range of the previous test that failed.
Conditions for Clearing the MIL/DTC - Type A or Type B
* The control module turns OFF the MIL after 4 consecutive ignition cycles that the diagnostic runs and does not fail.
* A current DTC, Last Test Failed, clears when the diagnostic runs and passes.
* A history DTC clears after 40 consecutive warm-up cycles, if no failures are reported by this or any other emission related diagnostic.
* Clear the MIL and the DTC with a scan tool.
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 80
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 80
U2117 - U2165
U2117 - U2165
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 8
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 8
B3205 - B3844
B3205 - B3844
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 79
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 79
U1827 - U2116
U1827 - U2116
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 78
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 78
U1153 - U1826
U1153 - U1826
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 77
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 77
U0402 - U1137
U0402 - U1137
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 76
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 76
U0156 - U0402
U0156 - U0402
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 75
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 75
U0001 - U0155
U0001 - U0155
Tuesday, September 8, 2020
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 74
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 74
U1875 - U2199
Control Module U Code List
Control Module U Code List
This list includes all Data Communications related U-code DTCs in alphanumeric order with descriptors for all modules. Not all DTCs listed will
be applicable to all vehicles.
U1875 - U2199
Control Module U Code List
Control Module U Code List
This list includes all Data Communications related U-code DTCs in alphanumeric order with descriptors for all modules. Not all DTCs listed will
be applicable to all vehicles.
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 73
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 73
U1511 - U186B
U1511 - U186B
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 72
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 72
P2797 - U1500
P2797 - U1500
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 71
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 71
P2797 - U1500
U Code List
Diagnostic Trouble Code (DTC) List - Vehicle
This master DTC list includes all applicable DTCs in alphanumeric order with descriptors.
P2797 - U1500
U Code List
Diagnostic Trouble Code (DTC) List - Vehicle
This master DTC list includes all applicable DTCs in alphanumeric order with descriptors.
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 70
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 70
P2714 - P2764
P2714 - P2764
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 7
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 7
B2555 - B3135
B2555 - B3135
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 69
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 69
P2271 - P2636
P2271 - P2636
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 68
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 68
P2138 - P2270
P2138 - P2270
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 67
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 67
P2110 - P2135
P2110 - P2135
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 66
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 66
P1AF7 - P2101
P1AF7 - P2101
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 65
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 65
P1ADE - P1AF6
P1ADE - P1AF6
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 64
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 64
P1A05 - P1ADD
P1A05 - P1ADD
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 63
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 63
P181E - P1A01
P181E - P1A01
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 62
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 62
P15F1 - P181D
P15F1 - P181D
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 61
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 61
P1133 - P15FO
P1133 - P15FO
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 60
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 60
P0C14 - P1101
P0C14 - P1101
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 6
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 6
B2180 - B2545
B2180 - B2545
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 59
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 59
P0BEF - P0C13
P0BEF - P0C13
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 58
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 58
P0BD3 - P0BEE
P0BD3 - P0BEE
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 57
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 57
P0B8C - P0BD2
P0B8C - P0BD2
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 56
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 56
P0B74 - P0B89
P0B74 - P0B89
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 55
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 55
P0B5C - P0B73
P0B5C - P0B73
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 54
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 54
P0B46 - P0B5B
P0B46 - P0B5B
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 53
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 53
P0AEA - P0B43
P0AEA - P0B43
Monday, September 7, 2020
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 525
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 525
Reference Information
Schematic Reference
Heated/Cooled Seat Schematics ()
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Heated Seats Description and Operation (KA1) ()Heated Seats Description and Operation (KA6) ()
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Verify the type of vehicle and the heated seat system for which the DTC set.
If the DTC set in a hybrid or a non-hybrid vehicle without memory, refer to Circuit/System Testing below.
If the DTC set in a vehicle equipped with memory, refer to DTC B1925 or B2170 (w/o HP2 with memory).
If the DTC set in the rear heated seat module, refer to DTC B1925 or B2170 (Rear seat).
Circuit/System Testing
B1925 02, B1925 05
1. Ignition OFF, disconnect the X2, X4 harness connectors at the HSM.
2. Test for 850 Ohms - 300 kOhms between the signal circuit terminal 9 X4 and the low reference circuit terminal 6 X2.
瀚慖f less than the specified range, test for a short between the signal and low reference circuits. If the circuits test normal, replace the seat
cushion heater element/temperature sensor.
瀚慖f greater than the specified range, test the signal and low reference circuits for a short to voltage or an open/high resistance. If the circuits
test normal, replace the seat cushion heater element/temperature sensor.
3. Connect the X2, X4 harness connectors at the HSM.
4. Disconnect the harness connector at the seat cushion heater element/temperature sensor.
5. Ignition ON, test for 4.8 - 5.2 V between the signal circuit terminal C and ground.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace
the HSM.
瀚慖f greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the HSM.
6. If all circuits test normal, replace the HSM.
B2170 02 or B2170 05
1. Ignition OFF, disconnect the X2, X4 harness connectors at the HSM.
2. Test for 850 Ohms - 300 kOhms between the signal circuit terminal 20 X4 and the low reference circuit terminal 8 X2.
瀚慖f less than the specified range, test for a short between the signal and low reference circuits. If the circuits test normal, replace the seat
cushion heater element/temperature sensor.
瀚慖f greater than the specified range, test the signal and low reference circuits for a short to voltage or an open/high resistance. If the circuits
test normal, replace the seat cushion heater element/temperature sensor.
3. Connect the X2, X4 harness connectors at the HSM.
4. Disconnect the harness connector at the seat cushion heater element/temperature sensor.
5. Ignition ON, test for 4.8 - 5.2 V between the signal circuit terminal C and ground.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace
Reference Information
Schematic Reference
Heated/Cooled Seat Schematics ()
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Heated Seats Description and Operation (KA1) ()Heated Seats Description and Operation (KA6) ()
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Verify the type of vehicle and the heated seat system for which the DTC set.
If the DTC set in a hybrid or a non-hybrid vehicle without memory, refer to Circuit/System Testing below.
If the DTC set in a vehicle equipped with memory, refer to DTC B1925 or B2170 (w/o HP2 with memory).
If the DTC set in the rear heated seat module, refer to DTC B1925 or B2170 (Rear seat).
Circuit/System Testing
B1925 02, B1925 05
1. Ignition OFF, disconnect the X2, X4 harness connectors at the HSM.
2. Test for 850 Ohms - 300 kOhms between the signal circuit terminal 9 X4 and the low reference circuit terminal 6 X2.
瀚慖f less than the specified range, test for a short between the signal and low reference circuits. If the circuits test normal, replace the seat
cushion heater element/temperature sensor.
瀚慖f greater than the specified range, test the signal and low reference circuits for a short to voltage or an open/high resistance. If the circuits
test normal, replace the seat cushion heater element/temperature sensor.
3. Connect the X2, X4 harness connectors at the HSM.
4. Disconnect the harness connector at the seat cushion heater element/temperature sensor.
5. Ignition ON, test for 4.8 - 5.2 V between the signal circuit terminal C and ground.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace
the HSM.
瀚慖f greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the HSM.
6. If all circuits test normal, replace the HSM.
B2170 02 or B2170 05
1. Ignition OFF, disconnect the X2, X4 harness connectors at the HSM.
2. Test for 850 Ohms - 300 kOhms between the signal circuit terminal 20 X4 and the low reference circuit terminal 8 X2.
瀚慖f less than the specified range, test for a short between the signal and low reference circuits. If the circuits test normal, replace the seat
cushion heater element/temperature sensor.
瀚慖f greater than the specified range, test the signal and low reference circuits for a short to voltage or an open/high resistance. If the circuits
test normal, replace the seat cushion heater element/temperature sensor.
3. Connect the X2, X4 harness connectors at the HSM.
4. Disconnect the harness connector at the seat cushion heater element/temperature sensor.
5. Ignition ON, test for 4.8 - 5.2 V between the signal circuit terminal C and ground.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 524
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 524
Circuit/System Description
The heated seat temperature sensor that set this diagnostic trouble code (DTC) is located in the seat cushion just under the seat cover with the seat
heating element. The heated seat module (HSM) supplies a 5 V reference voltage through the temperature sensor signal circuit and a ground
through the low reference circuit to the sensor. The module monitors the voltage of the sensor signal circuit to determine the temperature of the
seat. The temperature sensor varies in resistance based on the temperature of the heating element causing the signal voltage to change. Once the seat
reaches the set temperature, the module will then cycle the control circuit of the heating elements ON and OFF in order to maintain the desired seat
temperature based on the feedback voltage from the sensor.
Conditions for Running the DTC
The HSM must be powered.
Conditions for Setting the DTC
B1925 02 or B2170 02
The temperature sensor voltage drops below 0.80 V for more than 1 second.
B1925 05 or B2170 05
The temperature sensor voltage is greater than 5 V for more than 1 second.
Action Taken When the DTC Sets
The heated seat function for the affected seat will be disabled.
Conditions for Clearing the DTC
* The current DTC will clear 3 seconds after the reference voltage returns to normal operating range, and the ignition is cycled OFF then back
to ACC or RUN.
* The history DTC will clear after 50 consecutive fault-free ignition cycles have occurred.
Circuit/System Description
The heated seat temperature sensor that set this diagnostic trouble code (DTC) is located in the seat cushion just under the seat cover with the seat
heating element. The heated seat module (HSM) supplies a 5 V reference voltage through the temperature sensor signal circuit and a ground
through the low reference circuit to the sensor. The module monitors the voltage of the sensor signal circuit to determine the temperature of the
seat. The temperature sensor varies in resistance based on the temperature of the heating element causing the signal voltage to change. Once the seat
reaches the set temperature, the module will then cycle the control circuit of the heating elements ON and OFF in order to maintain the desired seat
temperature based on the feedback voltage from the sensor.
Conditions for Running the DTC
The HSM must be powered.
Conditions for Setting the DTC
B1925 02 or B2170 02
The temperature sensor voltage drops below 0.80 V for more than 1 second.
B1925 05 or B2170 05
The temperature sensor voltage is greater than 5 V for more than 1 second.
Action Taken When the DTC Sets
The heated seat function for the affected seat will be disabled.
Conditions for Clearing the DTC
* The current DTC will clear 3 seconds after the reference voltage returns to normal operating range, and the ignition is cycled OFF then back
to ACC or RUN.
* The history DTC will clear after 50 consecutive fault-free ignition cycles have occurred.
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 523
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 523
Important: Element resistance must be measured twice to ensure that all failure conditions are simulated. First with the seat
unoccupied, then with the seat occupied.
2. Test for 3.5 - 11.5 Ohms between control circuit terminal 6 and control circuit terminal 4.
瀚慖f less than the specified range, test for a short between the control circuits. If the circuits test normal, replace the seat back heater
element.
瀚慖f greater than the specified range, test the control circuits for an open/high resistance. If the circuits test normal, replace the seat back
heater element.
3. Disconnect the X2, X4 harness connectors at the HSM.
4. Test for 850 Ohms - 300 kOhms between the signal circuit terminal 10 X4 and the low reference circuit terminal 7 X2.
瀚慖f less than the specified range, test for a short between the signal and low reference circuits. If the circuits test normal, replace the seat
back heater element/temperature sensor.
瀚慖f greater than the specified range, test the signal and low reference circuits for a short to voltage or an open/high resistance. If the circuits
test normal, replace the seat back heater element/temperature sensor.
5. Connect the X1, X2, X4 harness connectors at the HSM.
6. Disconnect the harness connector at the seat back heater element/temperature sensor.
7. Ignition ON, test for 4.8 - 5.2 V between the signal circuit terminal C and ground.
瀚慖f greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the HSM.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace
the HSM.
8. If all circuits test normal, replace the HSM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Driver or Passenger Seat Back Cushion Heater Replacement (Escalade with HP2) ()Driver or Passenger Seat Back Cushion Heater
Replacement (Tahoe with HP2) ()Driver or Passenger Seat Back Cushion Heater Replacement (without HP2) ()
* Control Module References (See: Testing and Inspection/Programming and Relearning) for the HSM replacement, setup, and programming
HP2 or Dealer Installed W/O Memory
DTC B1925 or B2170 (HP2 or Dealer Installed w/o Memory)
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC B1925 02
- Left Seat Heater Cushion Sensor Circuit Shorted to Ground
DTC B1925 05
- Left Seat Heater Cushion Sensor Circuit Shorted to Battery or Open
DTC B2170 02
- Right Seat Heater Cushion Sensor Circuit Shorted to Ground
DTC B2170 05
- Right Seat Heater Cushion Sensor Circuit Shorted to Battery or Open
Diagnostic Fault Information
Important: Element resistance must be measured twice to ensure that all failure conditions are simulated. First with the seat
unoccupied, then with the seat occupied.
2. Test for 3.5 - 11.5 Ohms between control circuit terminal 6 and control circuit terminal 4.
瀚慖f less than the specified range, test for a short between the control circuits. If the circuits test normal, replace the seat back heater
element.
瀚慖f greater than the specified range, test the control circuits for an open/high resistance. If the circuits test normal, replace the seat back
heater element.
3. Disconnect the X2, X4 harness connectors at the HSM.
4. Test for 850 Ohms - 300 kOhms between the signal circuit terminal 10 X4 and the low reference circuit terminal 7 X2.
瀚慖f less than the specified range, test for a short between the signal and low reference circuits. If the circuits test normal, replace the seat
back heater element/temperature sensor.
瀚慖f greater than the specified range, test the signal and low reference circuits for a short to voltage or an open/high resistance. If the circuits
test normal, replace the seat back heater element/temperature sensor.
5. Connect the X1, X2, X4 harness connectors at the HSM.
6. Disconnect the harness connector at the seat back heater element/temperature sensor.
7. Ignition ON, test for 4.8 - 5.2 V between the signal circuit terminal C and ground.
瀚慖f greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the HSM.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace
the HSM.
8. If all circuits test normal, replace the HSM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Driver or Passenger Seat Back Cushion Heater Replacement (Escalade with HP2) ()Driver or Passenger Seat Back Cushion Heater
Replacement (Tahoe with HP2) ()Driver or Passenger Seat Back Cushion Heater Replacement (without HP2) ()
* Control Module References (See: Testing and Inspection/Programming and Relearning) for the HSM replacement, setup, and programming
HP2 or Dealer Installed W/O Memory
DTC B1925 or B2170 (HP2 or Dealer Installed w/o Memory)
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC B1925 02
- Left Seat Heater Cushion Sensor Circuit Shorted to Ground
DTC B1925 05
- Left Seat Heater Cushion Sensor Circuit Shorted to Battery or Open
DTC B2170 02
- Right Seat Heater Cushion Sensor Circuit Shorted to Ground
DTC B2170 05
- Right Seat Heater Cushion Sensor Circuit Shorted to Battery or Open
Diagnostic Fault Information
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 522
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 522
Action Taken When the DTC Sets
The heated seat back function for the affected seat will be disabled.
Conditions for Clearing the DTC
* The current DTC clears when the malfunction is no longer present and the power mode changes to OFF then back to ACC or RUN.
* The history DTC will clear after 50 consecutive fault-free ignition cycles have occurred.
Reference Information
Schematic Reference
Heated/Cooled Seat Schematics ()
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Heated Seats Description and Operation (KA1) ()Heated Seats Description and Operation (KA6) ()
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Testing
B1935 0A, B1935 0B, B1935 0C, B1935 0D, B1935 0E, B1935 04, or B1935 1F
1. Ignition OFF, disconnect the X1 harness connector at the HSM.
Important: Element resistance must be measured twice to ensure that all failure conditions are simulated. First with the seat
unoccupied, then with the seat occupied.
2. Test for 3.5 - 11.5 Ohms between control circuit terminal 3 and control circuit terminal 1.
瀚慖f less than the specified range, test for a short between the control circuits. If the circuits test normal, replace the seat back heater
element.
瀚慖f greater than the specified range, test the control circuits for an open/high resistance. If the circuits test normal, replace the seat back
heater element.
3. Disconnect the X2, X4 harness connectors at the HSM.
4. Test for 850 Ohms - 300 kOhms between the signal circuit terminal 19 X4 and the low reference circuit terminal 5 X2.
瀚慖f less than the specified range, test for a short between the signal and low reference circuits. If the circuits test normal, replace the seat
back heater element/temperature sensor.
瀚慖f greater than the specified range, test the signal and low reference circuits for a short to voltage or an open/high resistance. If the circuits
test normal, replace the seat back heater element/temperature sensor.
5. Connect the X1, X2, X4 harness connectors at the HSM.
6. Disconnect the harness connector at the seat back heater element/temperature sensor.
7. Ignition ON, test for 4.8 - 5.2 V between the signal circuit terminal C and ground.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace
the HSM.
瀚慖f greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the HSM.
8. If all circuits test normal, replace the HSM.
B2180 0A, B2180 0B, B2180 0C, B2180 0D, B2180 0E, B2180 04, or B2180 1F
1. Ignition OFF, disconnect the X1 harness connector at the HSM.
Action Taken When the DTC Sets
The heated seat back function for the affected seat will be disabled.
Conditions for Clearing the DTC
* The current DTC clears when the malfunction is no longer present and the power mode changes to OFF then back to ACC or RUN.
* The history DTC will clear after 50 consecutive fault-free ignition cycles have occurred.
Reference Information
Schematic Reference
Heated/Cooled Seat Schematics ()
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Heated Seats Description and Operation (KA1) ()Heated Seats Description and Operation (KA6) ()
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Testing
B1935 0A, B1935 0B, B1935 0C, B1935 0D, B1935 0E, B1935 04, or B1935 1F
1. Ignition OFF, disconnect the X1 harness connector at the HSM.
Important: Element resistance must be measured twice to ensure that all failure conditions are simulated. First with the seat
unoccupied, then with the seat occupied.
2. Test for 3.5 - 11.5 Ohms between control circuit terminal 3 and control circuit terminal 1.
瀚慖f less than the specified range, test for a short between the control circuits. If the circuits test normal, replace the seat back heater
element.
瀚慖f greater than the specified range, test the control circuits for an open/high resistance. If the circuits test normal, replace the seat back
heater element.
3. Disconnect the X2, X4 harness connectors at the HSM.
4. Test for 850 Ohms - 300 kOhms between the signal circuit terminal 19 X4 and the low reference circuit terminal 5 X2.
瀚慖f less than the specified range, test for a short between the signal and low reference circuits. If the circuits test normal, replace the seat
back heater element/temperature sensor.
瀚慖f greater than the specified range, test the signal and low reference circuits for a short to voltage or an open/high resistance. If the circuits
test normal, replace the seat back heater element/temperature sensor.
5. Connect the X1, X2, X4 harness connectors at the HSM.
6. Disconnect the harness connector at the seat back heater element/temperature sensor.
7. Ignition ON, test for 4.8 - 5.2 V between the signal circuit terminal C and ground.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace
the HSM.
瀚慖f greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the HSM.
8. If all circuits test normal, replace the HSM.
B2180 0A, B2180 0B, B2180 0C, B2180 0D, B2180 0E, B2180 04, or B2180 1F
1. Ignition OFF, disconnect the X1 harness connector at the HSM.
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 521
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 521
Circuit/System Description
When the heated seat function is active, the heated seat module (HSM) supplies battery voltage through the element supply voltage circuit to the
seat heater elements. The module controls the seat temperature by providing a PWM ground through the heated seat element control circuit to the
seat heater elements. The module then monitors the current flow through the heating element and the temperature sensor rate of change to verify
correct operation.
Conditions for Running the DTC
The HSM must be powered and the heated seat must be enabled.
Conditions for Setting the DTC
B1935 04 or B2180 04
The module does not detect a temperature change within 210 seconds.
B1935 0A or B2180 0A
The module detects that the set point temperature has not been reached within 8.5 minutes.
B1935 0B, B1935 0E, B2180 0B, or B2180 0E
By measuring output current, the module calculates that the heating element resistance is below the minimum resistance.
B1935 0C, B1935 0D, B2180 0C, or B2180 0D
By measuring output current, the module calculates that the heating element resistance is above the maximum resistance.
B1935 1F or B2180 1F
The temperature sensor voltage is erratic or changes suddenly.
Circuit/System Description
When the heated seat function is active, the heated seat module (HSM) supplies battery voltage through the element supply voltage circuit to the
seat heater elements. The module controls the seat temperature by providing a PWM ground through the heated seat element control circuit to the
seat heater elements. The module then monitors the current flow through the heating element and the temperature sensor rate of change to verify
correct operation.
Conditions for Running the DTC
The HSM must be powered and the heated seat must be enabled.
Conditions for Setting the DTC
B1935 04 or B2180 04
The module does not detect a temperature change within 210 seconds.
B1935 0A or B2180 0A
The module detects that the set point temperature has not been reached within 8.5 minutes.
B1935 0B, B1935 0E, B2180 0B, or B2180 0E
By measuring output current, the module calculates that the heating element resistance is below the minimum resistance.
B1935 0C, B1935 0D, B2180 0C, or B2180 0D
By measuring output current, the module calculates that the heating element resistance is above the maximum resistance.
B1935 1F or B2180 1F
The temperature sensor voltage is erratic or changes suddenly.
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 520
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 520
瀚慖f greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the HSM.
6. If all circuits test normal, replace the HSM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Driver or Passenger Seat Cushion Heater Replacement (without HP2) ()Driver or Passenger Seat Cushion Heater Replacement (with HP2)
()
* Control Module References (See: Testing and Inspection/Programming and Relearning) for the HSM replacement, setup, and programming
B1935
DTC B1935 or B2180 (Dealer Installed)
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC B1935 04
- Left Seat Back Heater Circuit Open
DTC B1935 0A
- Left Seat Back Heater Circuit Rate of Change Below Threshold
DTC B1935 0B
- Left Seat Back Heater Circuit Current Above Threshold
DTC B1935 0C
- Left Seat Back Heater Circuit Current Below Threshold
DTC B1935 0D
- Left Seat Back Heater Circuit Resistance Above Threshold
DTC B1935 0E
- Left Seat Back Heater Circuit Resistance Below Threshold
DTC B1935 1F
- Left Seat Back Heater Circuit Intermittent
DTC B2180 04
- Right Seat Back Heater Circuit Open
DTC B2180 0A
- Right Seat Back Heater Circuit Rate of Change Below Threshold
DTC B2180 0B
- Right Seat Back Heater Circuit Current Above Threshold
DTC B2180 0C
- Right Seat Back Heater Circuit Current Below Threshold
DTC B2180 0D
- Right Seat Back Heater Circuit Resistance Above Threshold
DTC B2180 0E
- Right Seat Back Heater Circuit Resistance Below Threshold
DTC B2180 1F
- Right Seat Back Heater Circuit Intermittent
Diagnostic Fault Information
瀚慖f greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the HSM.
6. If all circuits test normal, replace the HSM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Driver or Passenger Seat Cushion Heater Replacement (without HP2) ()Driver or Passenger Seat Cushion Heater Replacement (with HP2)
()
* Control Module References (See: Testing and Inspection/Programming and Relearning) for the HSM replacement, setup, and programming
B1935
DTC B1935 or B2180 (Dealer Installed)
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC B1935 04
- Left Seat Back Heater Circuit Open
DTC B1935 0A
- Left Seat Back Heater Circuit Rate of Change Below Threshold
DTC B1935 0B
- Left Seat Back Heater Circuit Current Above Threshold
DTC B1935 0C
- Left Seat Back Heater Circuit Current Below Threshold
DTC B1935 0D
- Left Seat Back Heater Circuit Resistance Above Threshold
DTC B1935 0E
- Left Seat Back Heater Circuit Resistance Below Threshold
DTC B1935 1F
- Left Seat Back Heater Circuit Intermittent
DTC B2180 04
- Right Seat Back Heater Circuit Open
DTC B2180 0A
- Right Seat Back Heater Circuit Rate of Change Below Threshold
DTC B2180 0B
- Right Seat Back Heater Circuit Current Above Threshold
DTC B2180 0C
- Right Seat Back Heater Circuit Current Below Threshold
DTC B2180 0D
- Right Seat Back Heater Circuit Resistance Above Threshold
DTC B2180 0E
- Right Seat Back Heater Circuit Resistance Below Threshold
DTC B2180 1F
- Right Seat Back Heater Circuit Intermittent
Diagnostic Fault Information
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 52
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 52
P0AAE - P0AE9
P0AAE - P0AE9
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 519
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 519
Reference Information
Schematic Reference
Heated/Cooled Seat Schematics ()
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Heated Seats Description and Operation (KA1) ()Heated Seats Description and Operation (KA6) ()
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Verify the type of vehicle and the heated seat system for which the DTC set.
If the DTC set in a hybrid or a non-hybrid vehicle without memory, refer to Circuit/System Testing below.
If the DTC set in a vehicle equipped with memory, refer to DTC B1925 or B2170 (w/o HP2 with memory).
If the DTC set in the rear heated seat module, refer to DTC B1925 or B2170 (Rear seat).
Circuit/System Testing
B1925 02, B1925 05
1. Ignition OFF, disconnect the X2, X4 harness connectors at the HSM.
2. Test for 850 Ohms - 300 kOhms between the signal circuit terminal 9 X4 and the low reference circuit terminal 6 X2.
瀚慖f less than the specified range, test for a short between the signal and low reference circuits. If the circuits test normal, replace the seat
cushion heater element/temperature sensor.
瀚慖f greater than the specified range, test the signal and low reference circuits for a short to voltage or an open/high resistance. If the circuits
test normal, replace the seat cushion heater element/temperature sensor.
3. Connect the X2, X4 harness connectors at the HSM.
4. Disconnect the harness connector at the seat cushion heater element/temperature sensor.
5. Ignition ON, test for 4.8 - 5.2 V between the signal circuit terminal C and ground.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace
the HSM.
瀚慖f greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the HSM.
6. If all circuits test normal, replace the HSM.
B2170 02 or B2170 05
1. Ignition OFF, disconnect the X2, X4 harness connectors at the HSM.
2. Test for 850 Ohms - 300 kOhms between the signal circuit terminal 20 X4 and the low reference circuit terminal 8 X2.
瀚慖f less than the specified range, test for a short between the signal and low reference circuits. If the circuits test normal, replace the seat
cushion heater element/temperature sensor.
瀚慖f greater than the specified range, test the signal and low reference circuits for a short to voltage or an open/high resistance. If the circuits
test normal, replace the seat cushion heater element/temperature sensor.
3. Connect the X2, X4 harness connectors at the HSM.
4. Disconnect the harness connector at the seat cushion heater element/temperature sensor.
5. Ignition ON, test for 4.8 - 5.2 V between the signal circuit terminal C and ground.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace
Reference Information
Schematic Reference
Heated/Cooled Seat Schematics ()
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Heated Seats Description and Operation (KA1) ()Heated Seats Description and Operation (KA6) ()
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Verify the type of vehicle and the heated seat system for which the DTC set.
If the DTC set in a hybrid or a non-hybrid vehicle without memory, refer to Circuit/System Testing below.
If the DTC set in a vehicle equipped with memory, refer to DTC B1925 or B2170 (w/o HP2 with memory).
If the DTC set in the rear heated seat module, refer to DTC B1925 or B2170 (Rear seat).
Circuit/System Testing
B1925 02, B1925 05
1. Ignition OFF, disconnect the X2, X4 harness connectors at the HSM.
2. Test for 850 Ohms - 300 kOhms between the signal circuit terminal 9 X4 and the low reference circuit terminal 6 X2.
瀚慖f less than the specified range, test for a short between the signal and low reference circuits. If the circuits test normal, replace the seat
cushion heater element/temperature sensor.
瀚慖f greater than the specified range, test the signal and low reference circuits for a short to voltage or an open/high resistance. If the circuits
test normal, replace the seat cushion heater element/temperature sensor.
3. Connect the X2, X4 harness connectors at the HSM.
4. Disconnect the harness connector at the seat cushion heater element/temperature sensor.
5. Ignition ON, test for 4.8 - 5.2 V between the signal circuit terminal C and ground.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace
the HSM.
瀚慖f greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the HSM.
6. If all circuits test normal, replace the HSM.
B2170 02 or B2170 05
1. Ignition OFF, disconnect the X2, X4 harness connectors at the HSM.
2. Test for 850 Ohms - 300 kOhms between the signal circuit terminal 20 X4 and the low reference circuit terminal 8 X2.
瀚慖f less than the specified range, test for a short between the signal and low reference circuits. If the circuits test normal, replace the seat
cushion heater element/temperature sensor.
瀚慖f greater than the specified range, test the signal and low reference circuits for a short to voltage or an open/high resistance. If the circuits
test normal, replace the seat cushion heater element/temperature sensor.
3. Connect the X2, X4 harness connectors at the HSM.
4. Disconnect the harness connector at the seat cushion heater element/temperature sensor.
5. Ignition ON, test for 4.8 - 5.2 V between the signal circuit terminal C and ground.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 518
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 518
Circuit/System Description
The heated seat temperature sensor that set this diagnostic trouble code (DTC) is located in the seat cushion just under the seat cover with the seat
heating element. The heated seat module (HSM) supplies a 5 V reference voltage through the temperature sensor signal circuit and a ground
through the low reference circuit to the sensor. The module monitors the voltage of the sensor signal circuit to determine the temperature of the
seat. The temperature sensor varies in resistance based on the temperature of the heating element causing the signal voltage to change. Once the seat
reaches the set temperature, the module will then cycle the control circuit of the heating elements ON and OFF in order to maintain the desired seat
temperature based on the feedback voltage from the sensor.
Conditions for Running the DTC
The HSM must be powered.
Conditions for Setting the DTC
B1925 02 or B2170 02
The temperature sensor voltage drops below 0.80 V for more than 1 second.
B1925 05 or B2170 05
The temperature sensor voltage is greater than 5 V for more than 1 second.
Action Taken When the DTC Sets
The heated seat function for the affected seat will be disabled.
Conditions for Clearing the DTC
* The current DTC will clear 3 seconds after the reference voltage returns to normal operating range, and the ignition is cycled OFF then back
to ACC or RUN.
* The history DTC will clear after 50 consecutive fault-free ignition cycles have occurred.
Circuit/System Description
The heated seat temperature sensor that set this diagnostic trouble code (DTC) is located in the seat cushion just under the seat cover with the seat
heating element. The heated seat module (HSM) supplies a 5 V reference voltage through the temperature sensor signal circuit and a ground
through the low reference circuit to the sensor. The module monitors the voltage of the sensor signal circuit to determine the temperature of the
seat. The temperature sensor varies in resistance based on the temperature of the heating element causing the signal voltage to change. Once the seat
reaches the set temperature, the module will then cycle the control circuit of the heating elements ON and OFF in order to maintain the desired seat
temperature based on the feedback voltage from the sensor.
Conditions for Running the DTC
The HSM must be powered.
Conditions for Setting the DTC
B1925 02 or B2170 02
The temperature sensor voltage drops below 0.80 V for more than 1 second.
B1925 05 or B2170 05
The temperature sensor voltage is greater than 5 V for more than 1 second.
Action Taken When the DTC Sets
The heated seat function for the affected seat will be disabled.
Conditions for Clearing the DTC
* The current DTC will clear 3 seconds after the reference voltage returns to normal operating range, and the ignition is cycled OFF then back
to ACC or RUN.
* The history DTC will clear after 50 consecutive fault-free ignition cycles have occurred.
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 517
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 517
1. Ignition OFF, disconnect the X2, X5 harness connectors at the MSM.
2. Test for 850 Ohms - 300 kOhms between the signal circuit terminal 2 X5 and the low reference circuit terminal 6 X2.
瀚慖f less than the specified range, test for a short between the signal and low reference circuits. If the circuits test normal, replace the seat
cushion heater element/temperature sensor.
瀚慖f greater than the specified range, test the signal and low reference circuits for a short to voltage or an open/high resistance. If the circuits
test normal, replace the seat cushion heater element/temperature sensor.
3. Connect the X2, X5 harness connectors at the MSM.
4. Disconnect the harness connector at the seat cushion heater element/temperature sensor.
5. Ignition ON, test for 4.8 - 5.2 V between the signal circuit terminal C and ground.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace
the MSM.
瀚慖f greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the MSM.
6. If all circuits test normal, replace the MSM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Driver or Passenger Seat Cushion Heater Replacement (without HP2) ()Driver or Passenger Seat Cushion Heater Replacement (with HP2)
()
* Control Module References (See: Testing and Inspection/Programming and Relearning) for the MSM replacement, setup, and programming
HP2 or Dealer Installed W/O Memory
DTC B1925 or B2170 (HP2 or Dealer Installed w/o Memory)
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC B1925 02
- Left Seat Heater Cushion Sensor Circuit Shorted to Ground
DTC B1925 05
- Left Seat Heater Cushion Sensor Circuit Shorted to Battery or Open
DTC B2170 02
- Right Seat Heater Cushion Sensor Circuit Shorted to Ground
DTC B2170 05
- Right Seat Heater Cushion Sensor Circuit Shorted to Battery or Open
Diagnostic Fault Information
1. Ignition OFF, disconnect the X2, X5 harness connectors at the MSM.
2. Test for 850 Ohms - 300 kOhms between the signal circuit terminal 2 X5 and the low reference circuit terminal 6 X2.
瀚慖f less than the specified range, test for a short between the signal and low reference circuits. If the circuits test normal, replace the seat
cushion heater element/temperature sensor.
瀚慖f greater than the specified range, test the signal and low reference circuits for a short to voltage or an open/high resistance. If the circuits
test normal, replace the seat cushion heater element/temperature sensor.
3. Connect the X2, X5 harness connectors at the MSM.
4. Disconnect the harness connector at the seat cushion heater element/temperature sensor.
5. Ignition ON, test for 4.8 - 5.2 V between the signal circuit terminal C and ground.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace
the MSM.
瀚慖f greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the MSM.
6. If all circuits test normal, replace the MSM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Driver or Passenger Seat Cushion Heater Replacement (without HP2) ()Driver or Passenger Seat Cushion Heater Replacement (with HP2)
()
* Control Module References (See: Testing and Inspection/Programming and Relearning) for the MSM replacement, setup, and programming
HP2 or Dealer Installed W/O Memory
DTC B1925 or B2170 (HP2 or Dealer Installed w/o Memory)
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC B1925 02
- Left Seat Heater Cushion Sensor Circuit Shorted to Ground
DTC B1925 05
- Left Seat Heater Cushion Sensor Circuit Shorted to Battery or Open
DTC B2170 02
- Right Seat Heater Cushion Sensor Circuit Shorted to Ground
DTC B2170 05
- Right Seat Heater Cushion Sensor Circuit Shorted to Battery or Open
Diagnostic Fault Information
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 516
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 516
B1925 05 or B2170 05
The temperature sensor voltage is greater than 5 Vs for more than 1 second.
Action Taken When the DTC Sets
The heated seat function for the affected seat will be disabled.
Conditions for Clearing the DTC
* The current DTC will clear 3 seconds after the reference voltage returns to normal operating range, and the ignition is cycled OFF then back
to ACC or RUN.
* The history DTC will clear after 50 consecutive fault-free ignition cycles have occurred.
Reference Information
Schematic Reference
Heated/Cooled Seat Schematics ()
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Heated Seats Description and Operation (KA1) ()Heated Seats Description and Operation (KA6) ()
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Verify the type of vehicle and the heated seat system for which the DTC set.
If the DTC set in a vehicle equipped with memory, refer to Circuit/System Testing below.
If the DTC set in a hybrid or a non-hybrid vehicle without memory, refer to DTC B1925 or B2170 (HP2 or dealer installed w/o memory).
If the DTC set in the rear heated seat module, refer to DTC B1925 or B2170 (Rear seat).
Circuit/System Testing
B1925 02 or B1925 05
1. Ignition OFF, disconnect the X2, X5 harness connectors at the MSM.
2. Test for 850 Ohms - 300 kOhms between the signal circuit terminal 1 X5 and the low reference circuit terminal 3 X2.
瀚慖f less than the specified range, test for a short between the signal and low reference circuits. If the circuits test normal, replace the seat
cushion heater element/temperature sensor.
瀚慖f greater than the specified range, test the signal and low reference circuits for a short to voltage or an open/high resistance. If the circuits
test normal, replace the seat cushion heater element/temperature sensor.
3. Connect the X2, X5 harness connectors at the MSM.
4. Disconnect the harness connector at the seat cushion heater element/temperature sensor.
5. Ignition ON, test for 4.8 - 5.2 V between the signal circuit terminal C and ground.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace
the MSM.
瀚慖f greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the MSM.
6. If all circuits test normal, replace the MSM.
B1925 05 or B2170 05
The temperature sensor voltage is greater than 5 Vs for more than 1 second.
Action Taken When the DTC Sets
The heated seat function for the affected seat will be disabled.
Conditions for Clearing the DTC
* The current DTC will clear 3 seconds after the reference voltage returns to normal operating range, and the ignition is cycled OFF then back
to ACC or RUN.
* The history DTC will clear after 50 consecutive fault-free ignition cycles have occurred.
Reference Information
Schematic Reference
Heated/Cooled Seat Schematics ()
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Heated Seats Description and Operation (KA1) ()Heated Seats Description and Operation (KA6) ()
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Verify the type of vehicle and the heated seat system for which the DTC set.
If the DTC set in a vehicle equipped with memory, refer to Circuit/System Testing below.
If the DTC set in a hybrid or a non-hybrid vehicle without memory, refer to DTC B1925 or B2170 (HP2 or dealer installed w/o memory).
If the DTC set in the rear heated seat module, refer to DTC B1925 or B2170 (Rear seat).
Circuit/System Testing
B1925 02 or B1925 05
1. Ignition OFF, disconnect the X2, X5 harness connectors at the MSM.
2. Test for 850 Ohms - 300 kOhms between the signal circuit terminal 1 X5 and the low reference circuit terminal 3 X2.
瀚慖f less than the specified range, test for a short between the signal and low reference circuits. If the circuits test normal, replace the seat
cushion heater element/temperature sensor.
瀚慖f greater than the specified range, test the signal and low reference circuits for a short to voltage or an open/high resistance. If the circuits
test normal, replace the seat cushion heater element/temperature sensor.
3. Connect the X2, X5 harness connectors at the MSM.
4. Disconnect the harness connector at the seat cushion heater element/temperature sensor.
5. Ignition ON, test for 4.8 - 5.2 V between the signal circuit terminal C and ground.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace
the MSM.
瀚慖f greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the MSM.
6. If all circuits test normal, replace the MSM.
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 515
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 515
Circuit/System Description
The heated seat temperature sensor that set this diagnostic trouble code (DTC) is located in the seat cushion just under the seat cover with the seat
heating element. The temperature sensor is a 2 wire thermistor and resistance through the sensor varies with temperature. The signal circuit is
referenced from 5 V within the memory seat module (MSM) and the temperature of the seat surface determines the signal circuit voltage. Once the
seat reaches the set temperature, the MSM will then cycle the control circuits of the heating elements ON and OFF in order to maintain the desired
seat temperature based on the feedback voltage from the sensors.
Conditions for Running the DTC
The MSM must be powered.
Conditions for Setting the DTC
B1925 02 or B2170 02
The temperature sensor voltage drops below 0.80 V for more than 1 second.
Circuit/System Description
The heated seat temperature sensor that set this diagnostic trouble code (DTC) is located in the seat cushion just under the seat cover with the seat
heating element. The temperature sensor is a 2 wire thermistor and resistance through the sensor varies with temperature. The signal circuit is
referenced from 5 V within the memory seat module (MSM) and the temperature of the seat surface determines the signal circuit voltage. Once the
seat reaches the set temperature, the MSM will then cycle the control circuits of the heating elements ON and OFF in order to maintain the desired
seat temperature based on the feedback voltage from the sensors.
Conditions for Running the DTC
The MSM must be powered.
Conditions for Setting the DTC
B1925 02 or B2170 02
The temperature sensor voltage drops below 0.80 V for more than 1 second.
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 514
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 514
the RHSM.
瀚慖f greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the RHSM.
6. If all circuits test normal, replace the RHSM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Rear Seat Cushion Heater Replacement ()
* Control Module References (See: Testing and Inspection/Programming and Relearning) for the RHSM replacement, setup, and
programming
Memory Seat Module
DTC B1925 or B2170 (w/o HP2 with Memory)
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC B1925 02
- Left Seat Heater Cushion Sensor Circuit Short to Ground
DTC B1925 05
- Left Seat Heater Cushion Sensor Circuit Short to Battery or Open
DTC B2170 02
- Right Seat Heater Cushion Sensor Circuit Short to Ground
DTC B2170 05
- Right Seat Heater Cushion Sensor Circuit Short to Battery or Open
Diagnostic Fault Information
the RHSM.
瀚慖f greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the RHSM.
6. If all circuits test normal, replace the RHSM.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Rear Seat Cushion Heater Replacement ()
* Control Module References (See: Testing and Inspection/Programming and Relearning) for the RHSM replacement, setup, and
programming
Memory Seat Module
DTC B1925 or B2170 (w/o HP2 with Memory)
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic System
Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Strategy Based Diagnosis) for an
overview of the diagnostic approach.
* Diagnostic Procedure Instructions (See: Testing and Inspection/Initial Inspection and Diagnostic Overview/Diagnostic Procedure
Instructions) provides an overview of each diagnostic category.
DTC Descriptors
DTC B1925 02
- Left Seat Heater Cushion Sensor Circuit Short to Ground
DTC B1925 05
- Left Seat Heater Cushion Sensor Circuit Short to Battery or Open
DTC B2170 02
- Right Seat Heater Cushion Sensor Circuit Short to Ground
DTC B2170 05
- Right Seat Heater Cushion Sensor Circuit Short to Battery or Open
Diagnostic Fault Information
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 513
2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 513
* A history DTC will clear after 50 ignition cycles or with a scan tool using the clear DTCs function.
Reference Information
Schematic Reference
Heated/Cooled Seat Schematics ()
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Heated Seats Description and Operation (KA1) ()Heated Seats Description and Operation (KA6) ()
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Verify the type of vehicle and the heated seat system for which the DTC set.
If the DTC set in the rear heated seat module, refer to Circuit/System Testing below.
If the DTC set in a vehicle equipped with memory, refer to DTC B1925 or B2170 (w/o HP2 with memory).
If the DTC set in a hybrid or a non-hybrid vehicle without memory, refer to DTC B1925 or B2170 (HP2 or dealer installed w/o memory).
Circuit/System Testing
B1925 02, B1925 05
1. Ignition OFF, disconnect the X2, X4 harness connectors at the RHSM.
2. Test for 850 Ohms - 300 kOhms between the signal circuit terminal 9 X4 and the low reference circuit terminal 6 X2.
瀚慖f less than the specified range, test for a short between the signal and low reference circuits. If the circuits test normal, replace the seat
cushion heater element/temperature sensor.
瀚慖f greater than the specified range, test the signal and low reference circuits for a short to voltage or an open/high resistance. If the circuits
test normal, replace the seat cushion heater element/temperature sensor.
3. Connect the X2, X4 harness connectors at the RHSM.
4. Disconnect the harness connector at the seat cushion heater element/temperature sensor.
5. Ignition ON, test for 4.8 - 5.2 V between the signal circuit terminal C and ground.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace
the RHSM.
瀚慖f greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the RHSM.
6. If all circuits test normal, replace the RHSM.
B2170 02 or B2170 05
1. Ignition OFF, disconnect the X2, X4 harness connectors at the RHSM.
2. Test for 850 Ohms - 300 kOhms between the signal circuit terminal 20 X4 and the low reference circuit terminal 8 X2.
瀚慖f less than the specified range, test for a short between the signal and low reference circuits. If the circuits test normal, replace the seat
cushion heater element/temperature sensor.
瀚慖f greater than the specified range, test the signal and low reference circuits for a short to voltage or an open/high resistance. If the circuits
test normal, replace the seat cushion heater element/temperature sensor.
3. Connect the X2, X4 harness connectors at the RHSM.
4. Disconnect the harness connector at the seat cushion heater element/temperature sensor.
5. Ignition ON, test for 4.8 - 5.2 V between the signal circuit terminal C and ground.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace
* A history DTC will clear after 50 ignition cycles or with a scan tool using the clear DTCs function.
Reference Information
Schematic Reference
Heated/Cooled Seat Schematics ()
Connector End View Reference
Component Connector End Views (See: Diagrams/Connector Views)
Description and Operation
Heated Seats Description and Operation (KA1) ()Heated Seats Description and Operation (KA6) ()
Electrical Information Reference
* Circuit Testing (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Circuit
Testing/Circuit Testing)
* Connector Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic
Procedures/Connector Repairs/Connector Repairs)
* Testing for Intermittent Conditions and Poor Connections (See: Testing and Inspection/Component Tests and General Diagnostics/General
Electrical Diagnostic Procedures/Circuit Testing/Testing for Intermittent Conditions and Poor Connections)
* Wiring Repairs (See: Testing and Inspection/Component Tests and General Diagnostics/General Electrical Diagnostic Procedures/Wiring
Repairs/Wiring Repairs)
Scan Tool Reference
Control Module References (See: Testing and Inspection/Programming and Relearning) for scan tool information
Circuit/System Verification
Verify the type of vehicle and the heated seat system for which the DTC set.
If the DTC set in the rear heated seat module, refer to Circuit/System Testing below.
If the DTC set in a vehicle equipped with memory, refer to DTC B1925 or B2170 (w/o HP2 with memory).
If the DTC set in a hybrid or a non-hybrid vehicle without memory, refer to DTC B1925 or B2170 (HP2 or dealer installed w/o memory).
Circuit/System Testing
B1925 02, B1925 05
1. Ignition OFF, disconnect the X2, X4 harness connectors at the RHSM.
2. Test for 850 Ohms - 300 kOhms between the signal circuit terminal 9 X4 and the low reference circuit terminal 6 X2.
瀚慖f less than the specified range, test for a short between the signal and low reference circuits. If the circuits test normal, replace the seat
cushion heater element/temperature sensor.
瀚慖f greater than the specified range, test the signal and low reference circuits for a short to voltage or an open/high resistance. If the circuits
test normal, replace the seat cushion heater element/temperature sensor.
3. Connect the X2, X4 harness connectors at the RHSM.
4. Disconnect the harness connector at the seat cushion heater element/temperature sensor.
5. Ignition ON, test for 4.8 - 5.2 V between the signal circuit terminal C and ground.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace
the RHSM.
瀚慖f greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the RHSM.
6. If all circuits test normal, replace the RHSM.
B2170 02 or B2170 05
1. Ignition OFF, disconnect the X2, X4 harness connectors at the RHSM.
2. Test for 850 Ohms - 300 kOhms between the signal circuit terminal 20 X4 and the low reference circuit terminal 8 X2.
瀚慖f less than the specified range, test for a short between the signal and low reference circuits. If the circuits test normal, replace the seat
cushion heater element/temperature sensor.
瀚慖f greater than the specified range, test the signal and low reference circuits for a short to voltage or an open/high resistance. If the circuits
test normal, replace the seat cushion heater element/temperature sensor.
3. Connect the X2, X4 harness connectors at the RHSM.
4. Disconnect the harness connector at the seat cushion heater element/temperature sensor.
5. Ignition ON, test for 4.8 - 5.2 V between the signal circuit terminal C and ground.
瀚慖f less than the specified range, test the signal circuit for a short to ground or an open/high resistance. If the circuit tests normal, replace
Subscribe to:
Posts (Atom)