C1242

DTC C1242 BPMV Pump Motor Ground Circuit Open:

BPMV Pump Motor Circuit Schematic:

CIRCUIT DESCRIPTION
The BPMV pump motor ground is supplied through a ground stud on the pump motor to chassis ground.

CONDITION FOR SETTING THE DTC
- DTC C1242 can be set when the pump relay is commanded "OFF." A malfunction exists if the pump motor ground CKT 1150 resistance is greater than 6900 ohms.

ACTION TAKEN WHEN THE DTC SETS
- A malfunction DTC is stored, ABS/TCS is disabled and the "ABS" and "TRACTION OFF" indicator lamps are turned "ON."

CONDITIONS FOR CLEARING DTC
- Condition for DTC is no longer present and scan tool clear DTC function is used.
- 50 ignition cycles have passed with no DTC(s) detected.

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.
- An intermittent malfunction can be caused by poor connections, broken insulation, or a wire that is broken inside the insulation.

TEST DESCRIPTION
The numbers below refer to step numbers on the diagnostic table.
2. Checks for good pump motor ground.
4. Checks for good pump motor ground through the BPMV.