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Home >> Pontiac >> 2008 >> Grand Prix Base >> Repair and Diagnosis >> Brakes >> Anti-Lock Brake System, Traction Control System & Stability Control System >> Diagnostic Information and Procedures >> DTC C0110 >> Circuit/System Testing

Circuit/System Testing

  1. Ignition OFF, disconnect the EBCM harness connector and connect a test lamp between the battery positive voltage circuit terminal, and to chassis ground.
  2. Verify that the test lamp illuminates.
    • If the test lamp does not illuminate, repair the open or high resistance in the battery positive voltage circuit.
  3. Connect a test lamp between the battery positive voltage circuit and pump motor ground circuit at the EBCM connector, verify that the test lamp illuminates.
    • If the test lamp does not illuminate, repair the open or high resistance in the pump motor ground circuit.
  4. Ignition OFF, remove the EBCM from the BPMV.
  5. Inspect the EBCM to BPMV connector for conditions such as damage, corrosion, or presence of brake fluid.
    • If connector corrosion or damage is evident, replace BPMV and/or EBCM as necessary.
    • If brake fluid is present, replace both BPMV and EBCM.
  6. Connect the EBCM harness to the EBCM with the BPMV still separated.
  7. Connect a test lamp between the BPMV pump motor B+ Connector C2 terminal 2, and the BPMV Pump Motor ground Connector C2 terminal 1.
  8. Ignition ON, use the scan tool to check the Pump Motor Relay State.
    • If test lamp illuminates and the Motor Relay State is ON, replace the BPMV.
    • If test lamp does not illuminate and the Motor Relay State is OFF, replace the EBCM.
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