2010 Cadillac Truck SRX AWD V6-2.8L Turbo Page 828
ABS Description and Operation (See: Brakes and Traction Control/Antilock Brakes / Traction Control 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
Circuit/System Verification
Ignition ON, observe the scan tool Steering Column Position parameter. As the steering wheel is turned, the reading should travel from -550 to
+550掳.
Circuit/System Testing
1. Ignition ON, verify that DTC C0710 42 or C0710 5A is not present.
瀚慖f either DTC is present, perform the Steering Angle Sensor Centering (See: Sensors and Switches/Sensors and Switches - Steering and
Suspension/Sensors and Switches - Steering/Steering Angle Sensor/Service and Repair/Procedures).
2. Inspect the B99 Steering Wheel Angle Sensor for correct installation.
瀚慖f loose or incorrect installation is diagnosed, correct the installation of the component.
3. Ignition OFF, disconnect the harness connector at the B99 Steering Wheel Angle Sensor.
4. Test for less than 5 ohm between the ground circuit terminal 6 and ground.
瀚慖f greater than the specified value, test the ground circuit for an open/high resistance.
5. Ignition ON, test for greater than 11 V between the 12 V reference circuit terminal 5 and ground.
瀚慖f less than the specified range, test the 12 V reference circuit for a short to ground or an open/high resistance. If the circuit tests normal,
replace the K17 Electronic Brake Control Module (EBCM).
6. If all circuits test normal, replace the B99 Steering Wheel Angle Sensor and verify the DTC does not reset.
瀚慖f the DTC resets, replace the module that set the DTC.
Repair Instructions
Perform the Diagnostic Repair Verification (See: Verification Tests) after completing the diagnostic procedure.
* Steering Angle Sensor Replacement (See: Sensors and Switches/Sensors and Switches - Steering and Suspension/Sensors and Switches -
Steering/Steering Angle Sensor/Service and Repair/Removal and Replacement)
* Control Module References (See: Testing and Inspection/Programming and Relearning)for module replacement, setup and programming
C0550
DTC C0550
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.
