• | Perform the Diagnostic System Check - Vehicle prior to using this diagnostic procedure. |
• | Review Strategy Based Diagnosis for an overview of the diagnostic approach. |
• | Diagnostic Procedure Instructions provides an overview of each diagnostic category. |
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.
• | Ignition ON. |
• | Ignition voltage is greater than 10 volts. |
• | Sensor supply voltage is less than 4.5 volts or greater than 5.3 volts for more than 1 sec. |
• | Sensor signal voltage is less than 0.12 volts or greater than 3.2 volts for more than 1 sec. |
EBCM has been replaced and the calibration to the brake pressure sensor is outside of programed range.
• | 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. |
• | 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. |
A DTC C0131 can set if the ECU is loosely attached to the hydraulic unit. The mountings should be checked for the proper torque.
Antilock Brake System Schematics
Control Module References for scan tool information
Replace EBCM/BPMV assembly.
Verify DTC C0131 3A is not set.
⇒ | If DTC is set, perform the special function, Brake Pressure Sensor Calibration. If the DTC resets replace EBCM/BPMV assembly. |
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
• | Control Module References for EBCM replacement, setup, and programming |