C1242

DTC C1242 BPMV Pump Motor Ground Circuit Open






Circuit Description

The BPMV pump motor ground is supplied through a ground stud on the pump motor to a good ground.

Conditions for Setting the DTC

All of the following conditions occur:
- The pump relay is commanded OFF.
- The pump motor ground resistance is greater than 6900 ohms.

Action Taken When the DTC Sets

- A malfunction DTC is stored.
- The ABS/TCS/Stabilitrak is disabled.
- The ABS indicator is turned ON.
- The TRACTION CONTROL indicator is turned ON.
- The DIC displays the SERVICE STABILITY SYS message.

Conditions for Clearing the DTC

- The condition for DTC is no longer present and you used scan tool Clear DTCs function.
- The condition for DTC is no longer present and you used the On-Board Clear DTCs function.
- The EBTCM does not detect the DTC in 50 drive cycles.

Diagnostic Aids

- Perform a thorough inspection of the wiring and the connectors. Failure to carefully and fully inspect wiring and connectors may result in misdiagnosis, causing part replacement with reappearance of the malfunction.
- An intermittent malfunction may be caused by poor connections, broken insulation, or a wire that is broken inside the insulation.
- If an intermittent malfunction exists, refer to Intermittents and Poor Connections.

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.