2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 943

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 943

Antilock Brake System Schematics (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Diagrams/Electrical Diagrams)

Connector End View Reference

Component Connector End Views (See: Diagrams/Connector Views)

Description and Operation

ABS Description and Operation (See: Brakes and Traction Control/Antilock Brakes / Traction Control Systems/Description and Operation/ABS

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

With scan tool installed, clear the DTCs. Turn the steering wheel through its full range and back to straight ahead to center the steering angle

sensor. Using a scan tool, observe the Steering Wheel Position parameter changes smoothly while turning steering wheel through the entire range.

Correlate zero reading with wheels in the straight ahead position. Drive the vehicle through a variety of maneuvers turning to the left, right and then

straight ahead at a speed greater than 20 km/h (13 mph).

If the DTC did not set as a current DTC see diagnostic aids.

Circuit/System Testing

1. Verify that DTC C1100, or C0710 is not set.

瀚慖f any of the DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle (See: Diagnostic Trouble Code

Descriptions/Diagnostic Trouble Code (DTC) List - Vehicle).

2. Ignition OFF, disconnect the harness connector at the steering angle sensor.

3. Test for less than 20 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 EBCM.

4. Ignition ON, test for 4.8 - 5.2 V between the 5 V reference circuit terminal 1 and ground.

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

replace the EBCM.

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

5. Test for 4.8 - 5.2 V between the 5 V reference circuit terminal 1 and the signal circuit terminal 6.

瀚慖f not within the specified range, test the signal circuit for an open/high resistance. If the circuit tests normal, replace the EBCM.

6. Ignition OFF,disconnect the harness connector at the EBCM.

7. Test for infinite resistance between the signal circuit terminal 4 and ground.

瀚慖f less than the specified range, test the signal circuit for a short to ground.

8. Connect the harness connector at the EBCM.

Note: When measuring voltage, the voltage values are based on a battery charge of 12.5 V and the steering wheel is in the center position.

9. Ignition ON, at the steering angle sensor connector harness, test for 6.8 - 11 V between the signal circuit terminals listed below and ground.