2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 866

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 866

* 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

1. Verify that DTC C0710 is not set.

瀚慖f the DTC is set, refer to DTC C0710 (See: C Code Charts/C0710/Antilock Brake System - Non-Hybrid Less than 3900 kg (8600 lb)

GVW).

2. Ignition OFF, disconnect the harness connector at the yaw/lateral accelerometer sensor.

3. Ignition OFF and all vehicle systems OFF. It may take up to 2 minutes for all vehicle systems to power down. Test for less than 10 ohm

between the ground circuit terminal 1 and ground.

瀚慖f greater than the specified range, test the ground circuit for an open/high resistance.

4. Disconnect the harness connector at the EBCM.

5. Test for infinite resistance between the 12 V reference circuit terminal 32 of the EBCM connector and ground.

瀚慖f not the specified value, test the 12 V reference circuit for a short to ground.

6. Test for less than 2 ohm between the 12 V reference circuit terminal 32 of the EBCM connector and terminal 4 of the yaw/lateral

accelerometer sensor connector.

瀚慖f greater than the specified range, test the 12 V reference circuit for open/high resistance.

7. If all circuits test normal, replace the yaw/lateral accelerometer sensor. If the DTC resets, replace the EBCM.

Repair Instructions

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

* Vehicle Yaw Sensor with Vehicle Lateral Accelerometer Replacement (See: Brakes and Traction Control/Antilock Brakes / Traction

Control Systems/Yaw Rate Sensor/Service and Repair/Less than 3900 kg (8600 lb) GVW)

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

Antilock Brake System - Non-Hybrid Greater than/Equal to 3900 kg (8600 lb) GVW

DTC C0186 or C0196

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 C0186 55

- Lateral Accelerometer Circuit Expected Number of Transition/Events Exceeded

DTC C0186 5A

- Lateral Accelerometer Circuit Plausibility Failure

DTC C0186 0F

- Lateral Accelerometer Circuit Erratic