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 C0226: Right Front Solenoid Circuit MalfunctionDTC C0236: Left Front Solenoid Circuit Malfunction
DTC C0246: Right Rear Solenoid Circuit Malfunction
DTC C0256: Left Rear Solenoid Circuit Malfunction
Circuit/System Description
The solenoid valves are part of the brake pressure modulator valve (BPMV). The BPMV turns ON and OFF the solenoid valves as deemed necessary to modulate hydraulic pressure to the wheel brakes during an ABS stop.
Conditions for Running the DTC
Ignition voltage is greater than 9.5 volts.
Conditions for Setting the DTC
The electronic brake control module (EBCM) detects one of the following conditions in the solenoid circuitry:
| • | An open |
| • | A short to ground |
| • | A short to voltage |
Action Taken When the DTC Sets
| • | The ABS is disabled. |
| • | The ABS warning indicator turns ON. |
Conditions for Clearing the DTC
The condition responsible for setting the DTC no longer exists and the scan tool Clear DTCs function is used.
Reference Information
Schematic Reference
Antilock Brake System Schematics
Connector End View Reference
Description and Operation
Electrical Information Reference
Scan Tool Reference
Control Module References for scan tool information
Circuit/System Verification
Ignition ON, verify that DTC C0226, C0236, C0246 or C0256 is not set.
| ⇒ | If DTC is set, replace the EBCM/BPMV. |
Repair Instructions
Perform the Diagnostic Repair Verification after completing the diagnostic procedure.
| • | Control Module References for EBCM replacement, setup, and programming |
