GM Service Manual Online
For 1990-2009 cars only

Diagnostic Instructions

    • Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure.
    • Review Strategy Based Diagnosis for an overview of the diagnostic approach.
    •  Diagnostic Procedure Instructions 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 electronic brake control module (EBCM) controls the valve functions by grounding the circuit when necessary.

Conditions for Running the DTC

    • Ignition ON.
    • The DTC can be set after system initialization.

Conditions for Setting the DTC

The DTC will set when the EBCM detects a short to B+, short to ground, or an open/high resistance in the solenoid coil or circuit internal to the EBCM only.

Action Taken When the DTC Sets

If equipped, the following actions occur:

    • The EBCM disables the ABS/traction control system (TCS)/vehicle stability enhancement system (VSES)/dynamic rear proportion (DRP) for the duration of the ignition cycle.
    • The ABS indicator illuminates.
    • The Stability Off indicator illuminates.
    • The red BRAKE warning indicator could illuminate.

Conditions for Clearing the MIL/DTC

The condition for the DTC is no longer present.

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

Connector End View Reference

Component Connector End Views

Description and Operation

ABS Description and Operation

Electrical Information Reference

    •  Circuit Testing
    •  Connector Repairs
    •  Testing for Intermittent Conditions and Poor Connections
    •  Wiring Repairs

Scan Tool Reference

Control Module References for scan tool information

Circuit/System Verification

If the DTC or DTCs is set, program the EBCM refer to Control Module References . If the DTC or DTCs resets, replace the EBCM.

Repair Instructions

Perform the Diagnostic Repair Verification after completing the diagnostic procedure.

Control Module References for EBCM replacement, setup, and programming