With StabiliTrak

DTC C0131 (With StabiliTrak)

Diagnostic Instructions

* Perform the Diagnostic System Check - Vehicle Diagnostic System Check - Vehicle prior to using this diagnostic procedure.

* Review Strategy Based Diagnosis Strategy Based Diagnosis for an overview of the diagnostic approach.

* Diagnostic Procedure Instructions Diagnostic Procedure Instructions provides an overview of each diagnostic category.

DTC Descriptors

DTC C0131 01

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Antilock Brake System (ABS)/Traction Control System (TCS) Pressure Circuit Short to Battery

DTC C0131 06

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ABS/Traction Control System (TCS) Pressure Circuit Short to Ground or Open

DTC C0131 0F

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ABS/Traction Control System (TCS) Pressure Circuit Erratic

DTC C0131 55

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ABS/Traction Control System (TCS) Pressure Circuit Expected Number of Transition/Events Not Reached

DTC C0131 5A

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ABS/Traction Control System (TCS) Pressure Circuit Plausibility Failure

DTC C0131 61

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ABS/Traction Control System (TCS) Pressure Circuit Actuator Stuck

Circuit/System Description

The electronic brake control module (EBCM) uses input from the brake pressure sensor for more accurate control during a vehicle stability enhancement system (VSES) event.

Conditions for Running the DTC

* Ignition ON.

* Ignition voltage is greater than 10 volts.

Conditions for Setting the DTC

* Internal pressure sensor fault.

* Brake Signal does not correlate to Pressure Signal.

* Signal is erratic and changes faster than physically allowed.

Action Taken When the DTC Sets

* The EBCM disables the ABS/Traction Control System (TCS)/Vehicle Stability Enhancement System (VSES) for the duration of the ignition cycle.

* A DIC message and/or a warning indicator may be displayed.

Conditions for Clearing the DTC

* The condition for the DTC is no longer present.

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

Reference Information

Schematic Reference

Antilock Brake System Schematics [1][2]Antilock Brakes / Traction Control Systems

Connector End View Reference

Component Connector End Views 1-2 Shift Solenoid (SS) Valve (M30)

Description and Operation

ABS Description and Operation (with StabiliTrak) ABS Description and Operation (with StabiliTrak)ABS Description and Operation (without StabiliTrak) ABS Description and Operation (without StabiliTrak)

Electrical Information Reference

* Circuit Testing Circuit Testing

* Connector Repairs Connector Repairs

* Testing for Intermittent Conditions and Poor Connections Testing for Intermittent Conditions and Poor Connections

* Wiring Repairs Wiring Repairs

Scan Tool Reference

Control Module References Control Module References for scan tool information

Circuit/System Testing

1. Apply and release brake pedal. Verify brake lamps operate properly.

• If brake lamps do not operate properly, refer to Symptoms - Lighting Symptoms - Lighting.

2. If all circuits test normal, replace the EBCM/brake pressure modulator valve (BPMV) assembly.

Repair Instructions

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

* Control Module References Control Module References for EBCM/BPMV replacement, setup, and programming.

* Brake Pressure Modulator Valve Replacement (Without JL4) Brake Pressure Modulator Valve Replacement (Without JL4)Brake Pressure Modulator Valve Replacement (With JL4) Brake Pressure Modulator Valve Replacement (With JL4)