C0110

Part 1 Of 2:

Part 2 Of 2:

CIRCUIT DESCRIPTION
The pump motor is an integral part of the Brake Pressure Modulator Valve (BPMV), while the pump motor relay is integral to the Electronic Brake (and Traction) Control Module (EBCM/EBTCM). The pump motor relay is not engaged during normal system operation. When Antilock Brake System (ABS) or Traction Control System (TCS) operation is required the EBCM/EBTCM activates the pump motor relay and battery power is provided to the pump motor.

CONDITIONS FOR SETTING THE DTC
^ Pump motor voltage is not present 60 milliseconds after activation of the pump motor relay.
^ Pump motor voltage is present for more than 2.5 seconds with no activation of the pump motor relay.
^ Pump motor voltage is not present for 40 milliseconds after the pump motor relay is commanded off.

ACTION TAKEN WHEN THE DTC SETS
^ A malfunction Diagnostic Trouble Code (DTC) stores.
^ The Antilock Brake System/Traction Control System (ABS/TCS) disables.
^ The amber ABS/TCS indicator(s) turn on.
^ The Red BRAKE Warning indicator turns on.

CONDITIONS FOR CLEARING THE DTC
^ The condition responsible for setting the Diagnostic Trouble Code (DTC) no longer exists and the Scan tool Clear DTCs function is used.
^ 100 ignition cycles pass with no DTCs detected.

IMPORTANT: After the DTC is cleared using ignition cycle default, the vehicle must be driven above 12 Km/h (8 mph) for the Antilock Brake System/Traction Control System (ABS/TCS) indicator(s) to turn off.

DIAGNOSTIC AIDS
^ It is very important that a thorough inspection of the wiring and connectors be performed. Failure to carefully and fully inspect wiring and connectors may result in misdiagnosis, causing part replacement with reappearance of the malfunction.
^ Thoroughly inspect any circuitry that may be causing the complaint for the following conditions:
- Backed out terminals
- Improper mating
- Broken locks
- Improperly formed or damaged terminals
- Poor terminal-to-wiring connections
- Physical damage to the wiring harness

^ The following conditions may cause an intermittent malfunction:
- A poor connection
- Rubbed-through wire insulation
- A broken wire inside the insulation

^ If an intermittent malfunction exists refer to Troubleshooting Procedures Cell 4 in Diagnostic Aids for further diagnosis.

TEST DESCRIPTION
The numbers below refer to step numbers on the diagnostic table.
4. This step checks for a short to ground in CKT 302.
10. This step checks for an open in CKT 302.