2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 860

2010 Cadillac Truck Escalade EXT AWD V8-6.2L Page 860

DTC C0179 54

- System Thermal Temperature High

Circuit/System Description

The electronic brake control module (EBCM) monitors traction control system (TCS) activation in order to calculate an estimate of the EBCM

solenoid valve temperatures. In most cases high solenoid valve temperatures are caused by extended TCS activation. If the EBCM calculates that

the solenoid valve temperatures are too high, the EBCM will temporarily suspend the TCS function until the solenoid valves cool.

Conditions for Running the DTC

Ignition ON.

Conditions for Setting the DTC

The estimated solenoid coil temperature reaches 220掳C (428掳F).

Action Taken When the DTC Sets

* The EBCM disables the TCS for the duration of the ignition cycle.

* The driver information center (DIC) displays the SERVICE TRACTION message.

* The DIC displays the Vehicle Stability Enhancement System (VSES) inhibited.

Conditions for Clearing the DTC

The EBCM clears the history DTC when a current DTC is not detected in 100 consecutive drive cycles.

Diagnostic Aids

Most occurrences of this DTC are caused by excessive TCS activation or braking.

Reference Information

Schematic Reference

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

Important: Allow brakes to cool down before performing test.

1. With a scan tool clear the DTC.

2. Test drive the vehicle under normal braking conditions and without causing TCS or ABS activation. Verify DTC C0179 resets.

瀚慖f the DTC resets, replace the EBCM.

Repair Instructions

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