C0156

DTC C0141-C0156

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle (Initial Inspection and Diagnostic Overview) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Initial Inspection and Diagnostic Overview) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Initial Inspection and Diagnostic Overview) provides an overview of each diagnostic category.



DTC Descriptors
DTC C0141 00
- Left Traction Control System (TCS) Solenoid/Motor Circuit

DTC C0146 00
- Left Traction Control System (TCS) Solenoid/Motor 2 Circuit

DTC C0151 00
- Right Traction Control System (TCS) Solenoid/Motor Circuit

DTC C0156 00
- Right Traction Control System (TCS) Solenoid Circuit




Circuit/System Description

The isolation and prime valve solenoid circuits are supplied with battery power when ignition is in the ON position. The EBCM controls the valve functions by grounding the circuit when necessary.


Conditions for Running the DTC

* The ignition is ON.
* The DTC can be set after system initialization.



Conditions for Setting the DTC

The DTC will set when the EBCM detects one of the following internal to the EBCM only:

* An open in the solenoid coil or circuit.
* A short to ground in the solenoid coil or circuit.
* A short to voltage in the solenoid coil or circuit.



Action Taken When the DTC Sets

If equipped, the following actions occur:

* The electronic brake control module (EBCM) disables the ABS/traction control system (TCS)/vehicle stability enhancement system (VSES)/dynamic rear proportion (DRP) for the duration of the ignition cycle.
* A malfunction DTC is set.
* The ABS indicator turns ON.
* The Stability Off indicator turns ON.
* The red BRAKE warning indicator could turn ON.



Conditions for Clearing the MIL/DTC

* The condition for the DTC is no longer present.
* The condition for the DTC is no longer present and the DTC is cleared with a scan tool.



Diagnostic Aids

The solenoid valve circuit and the solenoid coil are internal to the EBCM. No part of the solenoid circuit is diagnosable external to the EBCM. The DTC sets when there is a malfunction in the solenoid circuit internal to the EBCM only.


Reference Information
Schematic Reference

Antilock Brake System Schematics ([1][2]Antilock Brakes / Traction Control Systems)
Connector End View Reference

Component Connector End Views (Connector Views)
Description and Operation

ABS Description and Operation (Description and Operation)
Electrical Information Reference

* Circuit Testing (Component Tests and General Diagnostics)
* Connector Repairs (Component Tests and General Diagnostics)
* Testing for Intermittent Conditions and Poor Connections (Component Tests and General Diagnostics)
* Wiring Repairs (Component Tests and General Diagnostics)


Scan Tool Reference

Control Module References (Programming and Relearning) for scan tool information


Circuit/System Verification

If the DTC or DTCs is set, program the EBCM refer to Control Module References (Programming and Relearning). If the DTC or DTCs resets, replace the EBCM.


Repair Instructions

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


Control Module References (Programming and Relearning) for EBCM replacement, setup, and programming