GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 Buick 🢒 2005 🢒 Allure 🢒 Restraints 🢒 SIR 🢒 DTC C0141-C0156

Circuit Description

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

DTC Descriptors

This diagnostic procedure supports the following DTCs:

    • DTC C0141 Left Traction Control System (TCS) Solenoid/Motor {single or 1} Circuit
    • DTC C0146 Left Traction Control System (TCS) Solenoid/Motor 2 Circuit
    • DTC C0151 Right Traction Control System (TCS) Solenoid/Motor {single or 1} Circuit
    • DTC C0156 Right Traction Control System (TCS) Solenoid/Motor 2 Circuit

Conditions for Running the DTC
    • The ignition switch is in the ON position.
    • 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 antilock brake system (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 DTC
    • Condition for DTC is no longer present and scan tool clear DTC function is used.
    • 100 ignition cycles pass with no DTCs detected.

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.

Test Description

The number below refers to step numbers on the Diagnostic Table.

  1. This step determines if the DTC is current.

Step

Action

Yes

No

Schematic Reference: Antilock Brake System Schematics

Connector End View Reference: Antilock Brake System Connector End Views

1

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle in Vehicle DTC Information

2

  1. Using a scan tool clear the DTC.
  2. Remove the scan tool from the DLC.
  3. Carefully drive the vehicle above 12 km/h (8 mph) for several minutes.
  4. Turn OFF the ignition.
  5. Install a scan tool.
  6. Turn ON the ignition, with the engine OFF.
  7. Using the scan tool in Diagnostic Trouble Codes, check for DTCs.

Did any one of the DTCs C0141-C0151 reset as a current DTC?

Go to Step 3

Go to Diagnostic Aids

3

Replace the electronic brake control module (EBCM). Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming.

Is the repair complete?

Go to Step 4

--

4
  1. Use the scan tool in order to clear the DTCs.
  2. Operate the vehicle within the Conditions for Running the DTC as specified in the supporting text.

Does the DTC reset?

Go to Step 2

System OK