Antilock Brake System (Except North America)

DTC C0110 (Except North America)

Circuit Description

When the electronic brake control module (EBCM) grounds the pump motor relay, it closes and provides battery voltage to the pump motor if the valve relay is closed. The EBCM senses the voltage applied to the pump motor to verify motor operation.

This DTC sets when the EBCM detects B+ without motor relay activation or if the EBCM does not detect B+ after motor relay activation.

DTC Descriptor

This diagnostic procedure supports the following DTC:

DTC C0110 Pump Motor Circuit

Conditions for Running the DTC

* Vehicle speed is greater than 6 km/h (4 mph) with the brake pedal not applied
or
* Vehicle speed is greater than 15 km/h (9 mph) and the brake pedal is actuated.

Conditions for Setting the DTC

* There is a faulty terminal in the pump motor connector.
* There is a faulty terminal in the EBCM connector.
* There is a problem in the antilock brake system (ABS) wiring harness.
* There is high resistance in the chassis ground.
* The EBCM is defective.
* There is a problem in the wiring from the pump motor connector to the motor.

Action Taken When the DTC Sets

The antilock brake system (ABS) is disabled, and the ABS warning lamp is ON. The electronic brake force distribution (EBD) is disabled.

Conditions for Clearing the DTC

The condition responsible for setting the DTC no longer exists and the scan tool Clear DTCs function is used.

Diagnostic Aids

It is very important to perform a thorough inspection of the wiring and the connectors. Failure to do so may result in misdiagnosis, causing part replacement with reappearance of the malfunction.

Test Description

The numbers below refer to the step numbers on the diagnostic table.
2. This step checks for connector damage.
4. This step checks for a poor ground connection.
8. This step checks for a possible problem with the motor connector at the ABS unit.