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. - Symptoms - Lighting

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