C0131
DTC C0131DTC Descriptor
DTC C0131 00 ABS Pressure Circuit No Additional Information
DTC C0131 4B ABS Pressure Circuit Calibration Not Learned
DTC C0131 5A ABS Pressure Circuit Calibration Not Learned Plausibility Failure
Diagnostic Fault Information
Perform the [Diagnostic System Check - Vehicle Diagnostic Information] prior to using this diagnostic procedure.
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 9.5 volts
Conditions for Setting the DTC
^ Pressure signal does not correlate to estimated pressure over time.
^ 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 VSES and TCS for the duration of the ignition cycle.
^ The electronic stability control (ESC) telltale turns ON.
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.
Diagnostic Aids
The pressure sensor is integral to the brake pressure modulator valve (BPMV). The pressure sensor is not serviceable. Inspect the brake pressure sensor contacts for proper connections.
Circuit/System Testing
1. Apply and release brake pedal. Verify brake lamps operate properly.
2. Replace EBCM/brake pressure modulator valve (BPMV) assembly.
Repair Instructions
NOTE: Always perform the [Diagnostic Repair Verification - Vehicle Diagnostic Information] after completing the diagnostic procedure.
^ [Electronic Brake Control Module Replacement]
^ [Control Module References] for EBCM replacement, setup, and programming. Programming and Relearning
Repair Verification
[Diagnostic Repair Verification - Vehicle Diagnostic Information]