2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2494

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2494

瀚慖f greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit/connections test normal, replace

the ECM.

3. Ignition ON, test for 4.8-5.2 V between the appropriate 5 V reference circuit terminal listed below and ground.

* APP sensor 1 terminal D or 2

* APP sensor 2 terminal C or 1

瀚慖f less than the specified range, test the 5 V reference circuit for a short to ground or open/high resistance. If the circuit/connections test

normal, replace the ECM.

瀚慖f greater than the specified range, test the 5 V reference circuit for a short to voltage. If the circuit/connections test normal, replace the

ECM.

4. Observe the scan tool APP sensor 1 voltage parameter. Verify the voltage is less than 0.3 V.

瀚慖f greater than the specified range, test the signal circuit terminal E or 3 for a short to voltage. If the circuit/connections test normal,

replace the ECM.

5. Observe the scan tool APP sensor 2 voltage parameter. Verify the voltage is less than 0.3 V.

瀚慖f greater than the specified range, test the signal circuit terminal B or 6 for a short to voltage. If the circuit/connections test normal,

replace the ECM.

6. Connect a 3 A fused jumper wire between the APP sensor 1 signal circuit terminal E or 3 and the 5 V reference circuit terminal C or 1. Verify

the APP sensor 1 voltage parameter is greater than 4.8 V.

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/connections test

normal, replace the ECM.

7. Connect a 3 A fused jumper wire between the APP sensor 2 signal circuit terminal B or 6 and the 5 V reference circuit terminal C or 1.

Verify the APP sensor 2 voltage parameter is greater than 4.8 V.

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/connections test

normal, replace the ECM.

8. If all circuits/connections test normal, test or replace the Accelerator Pedal Assembly.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the repair.

* Accelerator Pedal Position Sensor Replacement (See: Powertrain Management/Computers and Control Systems/Accelerator Pedal Position

Sensor/Service and Repair)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for Engine Control Module replacement,

programming, and setup

P2128

DTC P2120, P2122, P2123, P2125, P2127, P2128, or P2138

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) provide an overview of each diagnostic category.

DTC Descriptors

DTC P2120

- Accelerator Pedal Position (APP) Sensor 1 Circuit

DTC P2122

- Accelerator Pedal Position (APP) Sensor 1 Circuit Low Voltage

DTC P2123

- Accelerator Pedal Position (APP) Sensor 1 Circuit High Voltage

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2487

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2487

瀚慖f greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit/connections test normal, replace

the ECM.

3. Ignition ON, test for 4.8-5.2 V between the appropriate 5 V reference circuit terminal listed below and ground.

* APP sensor 1 terminal D or 2

* APP sensor 2 terminal C or 1

瀚慖f less than the specified range, test the 5 V reference circuit for a short to ground or open/high resistance. If the circuit/connections test

normal, replace the ECM.

瀚慖f greater than the specified range, test the 5 V reference circuit for a short to voltage. If the circuit/connections test normal, replace the

ECM.

4. Observe the scan tool APP sensor 1 voltage parameter. Verify the voltage is less than 0.3 V.

瀚慖f greater than the specified range, test the signal circuit terminal E or 3 for a short to voltage. If the circuit/connections test normal,

replace the ECM.

5. Observe the scan tool APP sensor 2 voltage parameter. Verify the voltage is less than 0.3 V.

瀚慖f greater than the specified range, test the signal circuit terminal B or 6 for a short to voltage. If the circuit/connections test normal,

replace the ECM.

6. Connect a 3 A fused jumper wire between the APP sensor 1 signal circuit terminal E or 3 and the 5 V reference circuit terminal C or 1. Verify

the APP sensor 1 voltage parameter is greater than 4.8 V.

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/connections test

normal, replace the ECM.

7. Connect a 3 A fused jumper wire between the APP sensor 2 signal circuit terminal B or 6 and the 5 V reference circuit terminal C or 1.

Verify the APP sensor 2 voltage parameter is greater than 4.8 V.

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/connections test

normal, replace the ECM.

8. If all circuits/connections test normal, test or replace the Accelerator Pedal Assembly.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the repair.

* Accelerator Pedal Position Sensor Replacement (See: Powertrain Management/Computers and Control Systems/Accelerator Pedal Position

Sensor/Service and Repair)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for Engine Control Module replacement,

programming, and setup

P2125

DTC P2120, P2122, P2123, P2125, P2127, P2128, or P2138

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) provide an overview of each diagnostic category.

DTC Descriptors

DTC P2120

- Accelerator Pedal Position (APP) Sensor 1 Circuit

DTC P2122

- Accelerator Pedal Position (APP) Sensor 1 Circuit Low Voltage

DTC P2123

- Accelerator Pedal Position (APP) Sensor 1 Circuit High Voltage

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2480

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 2480

瀚慖f greater than the specified range, test the low reference circuit for an open/high resistance. If the circuit/connections test normal, replace

the ECM.

3. Ignition ON, test for 4.8-5.2 V between the appropriate 5 V reference circuit terminal listed below and ground.

* APP sensor 1 terminal D or 2

* APP sensor 2 terminal C or 1

瀚慖f less than the specified range, test the 5 V reference circuit for a short to ground or open/high resistance. If the circuit/connections test

normal, replace the ECM.

瀚慖f greater than the specified range, test the 5 V reference circuit for a short to voltage. If the circuit/connections test normal, replace the

ECM.

4. Observe the scan tool APP sensor 1 voltage parameter. Verify the voltage is less than 0.3 V.

瀚慖f greater than the specified range, test the signal circuit terminal E or 3 for a short to voltage. If the circuit/connections test normal,

replace the ECM.

5. Observe the scan tool APP sensor 2 voltage parameter. Verify the voltage is less than 0.3 V.

瀚慖f greater than the specified range, test the signal circuit terminal B or 6 for a short to voltage. If the circuit/connections test normal,

replace the ECM.

6. Connect a 3 A fused jumper wire between the APP sensor 1 signal circuit terminal E or 3 and the 5 V reference circuit terminal C or 1. Verify

the APP sensor 1 voltage parameter is greater than 4.8 V.

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/connections test

normal, replace the ECM.

7. Connect a 3 A fused jumper wire between the APP sensor 2 signal circuit terminal B or 6 and the 5 V reference circuit terminal C or 1.

Verify the APP sensor 2 voltage parameter is greater than 4.8 V.

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/connections test

normal, replace the ECM.

8. If all circuits/connections test normal, test or replace the Accelerator Pedal Assembly.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the repair.

* Accelerator Pedal Position Sensor Replacement (See: Powertrain Management/Computers and Control Systems/Accelerator Pedal Position

Sensor/Service and Repair)

* Control Module References (See: Testing and Inspection/Programming and Relearning) for Engine Control Module replacement,

programming, and setup

P2122

DTC P2120, P2122, P2123, P2125, P2127, P2128, or P2138

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) provide an overview of each diagnostic category.

DTC Descriptors

DTC P2120

- Accelerator Pedal Position (APP) Sensor 1 Circuit

DTC P2122

- Accelerator Pedal Position (APP) Sensor 1 Circuit Low Voltage

DTC P2123

- Accelerator Pedal Position (APP) Sensor 1 Circuit High Voltage

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 511

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 511

瀚慖f greater than the specified range, test the appropriate signal circuit listed below for a short to voltage. If the circuit tests normal, replace

the MSM.

* Seat front vertical position sensor terminal 1

* Seat rear vertical position sensor terminal 5

* Seat horizontal position sensor terminal 3

5. Install a 3A fused jumper wire between the appropriate signal circuit listed below and the 5-volt reference circuit terminal 6. Verify the

appropriate scan tool driver seat position sensor parameter is greater than 4.75 volts.

* Seat horizontal position sensor terminal 3

* Seat front vertical position sensor terminal 1

* Seat rear vertical position sensor terminal 5

瀚慖f less than the specified range, test the signal circuit for short to ground or an open/high resistance. If the circuit tests normal, replace the

MSM.

6. If all circuits test normal, test or replace the seat position sensor.

B1850 01, B1850 06, B1860 01 or B1860 06

1. Ignition OFF, disconnect the X2 harness connector at the lumbar adjuster assembly.

2. Test for less than 2 ohms between the low reference circuit terminal C and ground.

瀚慖f greater than the specified value, test the low reference circuit for an open/high resistance. If the circuit tests normal, replace the MSM.

3. Ignition ON, test for 4.8-5.2 volts between the 5-volt reference circuit terminal A and ground.

瀚慖f less than the specified range, test the 5-volt reference 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 5-volt reference circuit for a short to voltage. If the circuit tests normal, replace the MSM.

4. Verify the appropriate scan tool lumbar sensor parameter is less than 1 volt.

瀚慖f greater than the specified range, test the appropriate signal circuit listed below for a short to voltage. If the circuit tests normal, replace

the MSM.

* Lumbar vertical position sensor terminal B

* Lumbar horizontal position sensor terminal D

5. Install a 3A fused jumper wire between the appropriate signal circuit listed below and the 5-volt reference circuit terminal A. Verify the

appropriate scan tool lumbar sensor parameter is greater than 4.75 volts.

* Lumbar vertical position sensor terminal B

* Lumbar horizontal position sensor terminal D

瀚慖f less than the specified range, test the signal circuit for short to ground or an open/high resistance. If the circuit tests normal, replace the

MSM.

6. If all circuits test normal, test or replace the lumbar position sensor.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Front Seat Adjuster Replacement (with HP2) ()Front Seat Adjuster Replacement (without HP2) ()

* Seat Lumbar Sub System Replacement ()

* Front Seat Recliner Actuator Motor Replacement ()

* Control Module References (See: Testing and Inspection/Programming and Relearning) for MSM replacement, setup, and programming

Rear Heated 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.

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 436

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 436

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 BCM.

6. If all circuits test normal, test or replace the headlamp and panel dimmer switch.

Repair Instructions

Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.

* Headlamp Switch Replacement (Cadillac) (See: Lighting and Horns/Headlamp/Headlamp Switch/Service and Repair/Headlamp Switch

Replacement (Cadillac))Headlamp Switch Replacement (Except Cadillac) (See: Lighting and Horns/Headlamp/Headlamp Switch/Service

and Repair/Headlamp Switch Replacement (Except Cadillac))

* Control Module References (See: Testing and Inspection/Programming and Relearning) for BCM replacement, setup, and programming

Power Seats

DTC B1395

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 B1395 02

- Device Voltage Reference Output Circuit Short to Ground

DTC B1395 05

- Device Voltage Reference Output Circuit Short to Battery or Open

Diagnostic Fault Information

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 391

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 391

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 rear seat audio (RSA) module.

瀚慖f greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the rear seat audio (RSA)

module.

6. Ignition OFF, reconnect the X2 harness connector at the rear seat audio (RSA) module.

7. Disconnect the X2 harness connector at the amplifier.

8. Radio ON, test for 5.0-7.5 volts between the appropriate signal circuit terminal listed below and ground.

* Left rear low level audio signal (+) - terminal 15

* Left rear low level audio signal (-) - terminal 14

* Right rear low level audio signal (+) - terminal 16

* Right rear low level audio signal (-) - terminal 8

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 rear seat audio (RSA) module.

瀚慖f greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the rear seat audio (RSA)

module.

9. If all circuits test normal, replace the amplifier.

DTC Set by Audio Amplifier UQA

1. Ignition OFF, disconnect the X1 and X2 connectors at the amplifier.

2. Radio ON, test for less than 1 volt between the appropriate signal circuit terminal listed below and ground:

* Left front speaker output (+) - terminal 4 X2

* Left front speaker output (-) - terminal 3 X2

* Right front speaker output (+) - terminal 2 X2

* Right front low speaker output (-) - terminal 1 X2

* Left rear speaker output (+) - terminal 8 X2

* Left rear speaker output (-) - terminal 7 X2

* Right rear speaker output (+) - terminal 6 X2

* Right rear speaker output (-) - terminal 5 X2

* Left or rear subwoofer speaker output (+) - terminal 7 X1

* Left or rear subwoofer speaker output (-) - terminal 3 X1

* Right subwoofer speaker output (+) - terminal 6 X1

* Right subwoofer speaker output (-) - terminal 2 X1

瀚慖f greater than the specified range, test both circuits of the affected speaker for a short to voltage.

3. Radio OFF, test for infinite resistance between the appropriate signal circuit terminal listed below and ground:

* Left front speaker output (+) - terminal 4 X2

* Left front speaker output (-) - terminal 3 X2

* Right front speaker output (+) - terminal 2 X2

* Right front low speaker output (-) - terminal 1 X2

* Left rear speaker output (+) - terminal 8 X2

* Left rear speaker output (-) - terminal 7 X2

* Right rear speaker output (+) - terminal 6 X2

* Right rear speaker output (-) - terminal 5 X2

* Left or rear subwoofer speaker output (+) - terminal 7 X1

* Left or rear subwoofer speaker output (-) - terminal 3 X1

* Right subwoofer speaker output (+) - terminal 6 X1

* Right subwoofer speaker output (-) - terminal 2 X1

瀚慖f less than the specified value, test both circuits of the affected speaker for a short to ground.

4. If all circuits test normal, reconnect all harness connectors at the amplifier.

5. Ignition ON, radio ON, disconnect the appropriate speaker.

6. Test for 5.0-7.5 volts between the signal circuit terminals and ground.

瀚慖f less then the specified range test the circuit for an open/high resistance. If the circuit tests normal, replace the amplifier.

瀚慖f greater then the specified range test the circuit for a short to voltage. If the circuit tests normal, replace the amplifier.

7. If the circuit tests normal, replace the appropriate speaker.

DTC Set by Audio Amplifier UQA with Y91 or UQS

1. Ignition OFF, disconnect the X1 and X2 connectors at the amplifier.

2. Radio ON, test for less than 1 volt between the appropriate signal circuit terminal listed below and ground:

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 390

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 390

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 rear seat audio (RSA) module.

瀚慖f greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the rear seat audio (RSA)

module.

6. Ignition OFF, reconnect the X2 harness connector at the rear seat audio (RSA) module.

7. Disconnect the X3 harness connector at the amplifier.

8. Radio ON, test for 5.0-7.5 volts between the appropriate signal circuit terminal listed below and ground.

* Left rear low level audio signal (+) - terminal 13

* Left rear low level audio signal (-) - terminal 5

* Right rear low level audio signal (+) - terminal 12

* Right rear low level audio signal (-) - terminal 4

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 rear seat audio (RSA) module.

瀚慖f greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the rear seat audio (RSA)

module.

9. If all circuits test normal, replace the amplifier.

DTC Set By Radio UQA with Y91 and U42 or UQS and U42

1. Ignition OFF, disconnect the X3 and X4 harness connectors at the amplifier.

2. Radio ON, test for 5.0-7.5 volts between the appropriate signal circuit terminal listed below and ground.

* Left front low level audio signal (+) - terminal 11 X3

* Left front low level audio signal (-) - terminal 12 X3

* Right front low level audio signal (+) - terminal 3 X3

* Right front low level audio signal (-) - terminal 4 X3

* Left rear low level audio signal (+) - terminal 11 X4

* Left rear low level audio signal (-) - terminal 12 X4

* Right rear low level audio signal (+) - terminal 3 X4

* Right rear low level audio signal (-) - terminal 4 X4

* Subwoofer low level audio signal (+) - terminal 5 X4

* Subwoofer low level audio signal (-) - terminal 6 X4

* Center Channel low level audio signal (+) - terminal 13 X4

* Center Channel low level audio signal (-) - terminal 14 X4

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 radio.

瀚慖f greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the radio.

3. If all circuits test normal, replace the amplifier.

DTC Set By Radio UQA with Y91 and U42 or UQS and U42

1. Ignition OFF, disconnect the X3 and X4 harness connector at the amplifier.

2. Radio ON, test for 5.0-7.5 volts between the appropriate signal circuit terminal listed below and ground.

* Left front low level audio signal (+) - terminal 11 X3

* Left front low level audio signal (-) - terminal 12 X3

* Right front low level audio signal (+) - terminal 3 X3

* Right front low level audio signal (-) - terminal 4 X3

* Subwoofer low level audio signal (+) - terminal 5 X4

* Subwoofer low level audio signal (-) - terminal 6 X4

* Center Channel low level audio signal (+) - terminal 13 X4

* Center Channel low level audio signal (-) - terminal 14 X4

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 radio.

瀚慖f greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the radio.

3. Ignition OFF, reconnect the X3 harness connector at the amplifier.

4. Disconnect the X2 harness connector at the rear seat audio (RSA) module.

5. Radio ON, test for 5.0-7.5 volts between the appropriate signal circuit terminal listed below and ground.

* Left rear low level audio signal (+) - terminal 1

* Left rear low level audio signal (-) - terminal 2

* Right rear low level audio signal (+) - terminal 3

* Right rear low level audio signal (-) - terminal 4

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 384

2010 Cadillac Truck Escalade/ESV RWD V8-6.2L Page 384

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 radio.

瀚慖f greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the radio.

3. If all circuits test normal, replace the amplifier.

DTC Set By Radio UQA with Y91 and U42 or UQS and U42

1. Ignition OFF, disconnect the X3 and X4 harness connector at the amplifier.

2. Radio ON, test for 5.0-7.5 volts between the appropriate signal circuit terminal listed below and ground.

* Left front low level audio signal (+) - terminal 11 X3

* Left front low level audio signal (-) - terminal 12 X3

* Right front low level audio signal (+) - terminal 3 X3

* Right front low level audio signal (-) - terminal 4 X3

* Subwoofer low level audio signal (+) - terminal 5 X4

* Subwoofer low level audio signal (-) - terminal 6 X4

* Center Channel low level audio signal (+) - terminal 13 X4

* Center Channel low level audio signal (-) - terminal 14 X4

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 radio.

瀚慖f greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the radio.

3. Ignition OFF, reconnect the X3 harness connector at the amplifier.

4. Disconnect the X2 harness connector at the rear seat audio (RSA) module.

5. Radio ON, test for 5.0-7.5 volts between the appropriate signal circuit terminal listed below and ground.

* Left rear low level audio signal (+) - terminal 1

* Left rear low level audio signal (-) - terminal 2

* Right rear low level audio signal (+) - terminal 3

* Right rear low level audio signal (-) - terminal 4

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 rear seat audio (RSA) module.

瀚慖f greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the rear seat audio (RSA)

module.

6. Ignition OFF, reconnect the X2 harness connector at the rear seat audio (RSA) module.

7. Disconnect the X2 harness connector at the amplifier.

8. Radio ON, test for 5.0-7.5 volts between the appropriate signal circuit terminal listed below and ground.

* Left rear low level audio signal (+) - terminal 15

* Left rear low level audio signal (-) - terminal 14

* Right rear low level audio signal (+) - terminal 16

* Right rear low level audio signal (-) - terminal 8

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 rear seat audio (RSA) module.

瀚慖f greater than the specified range, test the signal circuit for a short to voltage. If the circuit tests normal, replace the rear seat audio (RSA)

module.

9. If all circuits test normal, replace the amplifier.

DTC Set by Audio Amplifier UQA

1. Ignition OFF, disconnect the X1 and X2 connectors at the amplifier.

2. Radio ON, test for less than 1 volt between the appropriate signal circuit terminal listed below and ground:

* Left front speaker output (+) - terminal 4 X2

* Left front speaker output (-) - terminal 3 X2

* Right front speaker output (+) - terminal 2 X2

* Right front low speaker output (-) - terminal 1 X2

* Left rear speaker output (+) - terminal 8 X2

* Left rear speaker output (-) - terminal 7 X2

* Right rear speaker output (+) - terminal 6 X2

* Right rear speaker output (-) - terminal 5 X2

* Left or rear subwoofer speaker output (+) - terminal 7 X1

* Left or rear subwoofer speaker output (-) - terminal 3 X1

* Right subwoofer speaker output (+) - terminal 6 X1

* Right subwoofer speaker output (-) - terminal 2 X1