For 1990-2009 cars only
Diagnostic Instructions
| • | 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. |
DTC Descriptor
DTC C0136: Base Brake System Pressure CircuitCircuit/System Description
The electronic brake control module (EBCM) monitors an internal input from the master cylinder pressure sensor to enhance antilock brake system (ABS) braking and vehicle stability if equipped.
Conditions for Running the DTC
Ignition ON.
Conditions for Setting the DTC
| • | When vehicle speed is more than 7 km/h (4 mph), the master cylinder pressure does not change for 30 seconds with the brake applied. |
| • | When vehicle speed is more than 10 km/h (6 mph), the master cylinder pressure signal is erratic. |
| • | Master cylinder pressure signal is out of range. |
| • | Master cylinder pressure is high for 5 seconds with the stop lamp switch signal OFF. |
Action Taken When the DTC Sets
| • | The EBCM disables traction control system (TCS) and 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. |
Diagnostic Aids
The master cylinder pressure sensor is located internally in the Master Cylinder and is not serviceable.
Reference Information
Schematic Reference
Connector End View Reference
Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
Important: It is recommend that the defective components be replaced, and not the complete brake master cylinder assembly.
- Verify that DTCs C0131, P0719, P0724 are not set.
- Replace the EBCM.
| ⇒ | If any of the DTCs are set, refer to Diagnostic Trouble Code (DTC) List - Vehicle. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
Control Module References for EBCM and BPMV replacement, setup, and programming
