C0110
DTC C0110
Circuit Description
Ground is continuously supplied to the low side of the Antilock Brake System (ABS) pump motor. The electronic brake control module (EBCM) activates the ABS pump by supplying battery voltage to the high side of the motor.
DTC Descriptor
This diagnostic procedure supports the following DTC:
DTC C0110 Pump Motor Circuit
Conditions for Running the DTC
The ignition is ON.
Conditions for Setting the DTC
The EBCM detects an open pump motor circuit, a shorted pump motor, or a seized pump motor or ABS pump.
Action Taken When the DTC Sets
^ The EBCM disables the ABS.
^ The ABS indicator turns ON.
Conditions for Clearing the DTC
The Conditions for Setting the DTC are no longer present and you use the scan tool Clear DTCs function.
An ECE 13 response may occur, the actions above are maintained during subsequent ignition cycles until the EBCM completes a power up self-test. This test concludes when the vehicle achieves a speed greater than 13 km/h (8 mph) and the pump motor is verified by the EBCM. Refer to ABS Description and Operation (8600 GVW or Less W/Rear Disc Brake) ABS Description and Operation (Over 8600 GVW or Rear Drum Brakes) for a complete description of ECE 13.
Diagnostic Aids
Separate the EBCM from the brake pressure modulator valve (BPMV) in order to inspect for corrosion or any other condition that may cause a poor connection at the pump motor connector. Refer to Electronic Brake Control Module Replacement and Testing for Intermittent Conditions and Poor Connections. If severe corrosion or other damage exists, the BPMV or the EBCM may need to be replaced. Component Tests and General Diagnostics
