The inlet and outlet valve solenoid circuits are supplied with battery power, when the ignition is in the ON position. The electronic brake control module (EBCM) controls the valve functions, by grounding the circuit when necessary.
This diagnostic procedure supports the following DTCs:
• | DTC C0060 Left Front ABS Solenoid 1 Circuit Malfunction |
• | DTC C0065 Left Front ABS Solenoid 2 Circuit Malfunction |
• | DTC C0070 Right Front ABS Solenoid 1 Circuit Malfunction |
• | DTC C0075 Right Front ABS Solenoid 2 Circuit Malfunction |
• | DTC C0080 Left Rear ABS Solenoid 1 Circuit Malfunction |
• | DTC C0085 Left Rear ABS Solenoid 2 Circuit Malfunction |
• | DTC C0090 Right Rear ABS Solenoid 1 Circuit Malfunction |
• | DTC C0095 Right Rear ABS Solenoid 2 Circuit Malfunction |
• | The DTC can set anytime the ignition switch is in the ON position. |
• | The DTC can set when the vehicle speed is greater then 6 km/h (4 mph) and the brake pedal is not applied. |
• | The DTC can set when the vehicle speed is greater then 15 km/h (9 mph) and the brake pedal is applied. |
The DTC will set when the EBCM detects one of the following internal to the EBCM only:
• | An open in the solenoid coil or circuit |
• | A short to ground in the solenoid coil or circuit |
• | A short to voltage in the solenoid coil or circuit |
If equipped, the following actions occur:
• | The EBCM disables the ABS/traction control system (TCS)/dynamic rear proportion (DRP) for the duration of the ignition cycle. |
• | A malfunction DTC will set. |
• | The ANTI-LOCK indicator turns ON. |
• | The TRAC Off indicator turns ON. |
• | The red BRAKE Warning indicator could turn ON. |
• | The condition for 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. |
The solenoid valve circuit and the solenoid coil are internal to the EBCM. No part of the solenoid circuit is diagnosable external to the EBCM. The DTC sets when there is a malfunction in the solenoid circuit internal to the EBCM only.
The numbers below refer to the step numbers on the Diagnostic Table.
Step | Action | Yes | No |
---|---|---|---|
Schematic Reference: Antilock Brake System Schematics Connector End View Reference: Antilock Brake System Connector End Views | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | |
Did any one of the DTCs C0060-C0095 reset as a current DTC? | Go to Step 3 | Go to Testing for Intermittent Conditions and Poor Connections | |
3 | Replace the electronic brake control module (EBCM). Refer to Control Module References for replacement, setup, and programming. Is the repair complete? | Go to Step 4 | -- |
4 |
Does the DTC reset? | Go to Step 2 | System OK |