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Home › Pontiac › 2001 › Aztek Base, AWD › Repair and Diagnosis › Brakes › Traction Control › Anti-Lock Brake System With Traction Control System - BOSCH 5.3 › Diagnostic Tests › DTC C0110: Pump Motor Circuit Failure

DTC C0110: Pump Motor Circuit Failure

NOTE: Wiring from BPMV to EBCM should not be repaired.
  1. Perform diagnostic system check. See DIAGNOSTIC SYSTEM CHECK  under DIAGNOSIS & TESTING. After performing diagnostic system check, go to next step.
  2. Disconnect EBCM harness connector. Using cable adapter, connect universal breakout box to EBCM harness connector only. Test universal breakout box connector terminals No. 12 and 15 (ground circuits) for high resistance or for an open. Test universal breakout box connector terminals No. 13 and 14 (battery positive voltage circuits) for an open, high resistance, or a short to ground. Repair circuit(s) as necessary, then go to step  8. If condition was not found, go to next step.
  3. Disconnect BPMV pump motor harness pigtail connector. Measure resistance between each pump motor control circuit and BPMV housing at pump motor harness pigtail connector. If resistance is less than 5 ohms, go to next step. If resistance is more than 5 ohms, go to step  5.
  4. Inspect for poor connections at BPMV pump motor harness pigtail connector. Repair as necessary, then go to step  8. If condition was not found, go to step  6.
  5. Inspect for poor connections at EBCM harness connector. Repair as necessary, then go to step  8. If condition was not found, go to step  7.
  6. Replace BPMV. See ELECTRONIC BRAKE CONTROL MODULE & BRAKE PRESSURE MODULATOR VALVE ASSEMBLY  under REMOVAL & INSTALLATION. Go to step  8.
  7. Replace EBCM. See ELECTRONIC BRAKE CONTROL MODULE & BRAKE PRESSURE MODULATOR VALVE ASSEMBLY  under REMOVAL & INSTALLATION. Go to next step.
  8. Using scan tool, clear DTCs. Operate vehicle to verify repair. If DTC resets, go to step  2. If DTC does not reset, system is okay.
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