C0131

DTC C0131

DTC Descriptor

DTC C0131 00
- ABS Pressure Circuit No Additional Information

Diagnostic Fault Information

Important: Always perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. Initial Inspection and Diagnostic Overview

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

* The ignition is ON.
* Ignition voltage is greater than 8 volts

Conditions for Setting the DTC

* Brake signal does not correlate to pressure signal.
* Signal is erratic and changes faster than physically allowed.

Action Taken When the DTC Sets

* The Traction Control indicator turns ON.
* The driver information center (DIC) displays the Service Stability System message.

Conditions for Clearing the DTC

* The condition for setting the DTC is no longer present and the DTC is cleared with a scan tool.
* The EBCM automatically clears the history DTC when a current DTC is not detected in 100 consecutive drive cycles.

Reference Information

Electrical Information Reference

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

Scan Tool Reference

Scan Tool Data List for EBCM

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 Systems.

2. Replace EBCM/brake pressure modulator valve (BPMV) assembly.

Repair Instructions

Important: Always perform the Diagnostic Repair Verification after completing the diagnostic procedure. Verification Tests