C1243

DTC C1243 BPMV Pump Motor Stalled






Circuit Description

When the EBTCM grounds the pump motor relay, the relay closes and provides battery voltage in order to operate the pump.

Conditions for Setting the DTC

All of the following conditions occur:
- After the pump motor has been ON, the pump motor relay is commanded OFF
- The pump motor was ON.
- The EBTCM detected a stalled or slowly turning motor.

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.

3. Checks for good pump motor ground.
5. Checks for good pump motor ground through the BPMV.