C1243

CIRCUIT DESCRIPTION
When the EBCM/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 EBCM/EBTCM detected a stalled or slowly turning motor.

ACTION TAKEN WHEN THE DTC SETS
^ A malfunction DTC is stored.
^ The ABS/TCS is disabled.
^ The ABS indicator is turned ON.
^ The TRACTION OFF indicator is turned ON.

CONDITIONS FOR CLEARING THE DTC
^ The condition for the DTC is no longer present and you used the scan tool Clear DTC function.
^ The EBCM/EBTCM does not detect the DTC in 50 drive cycles.

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.
^ If an intermittent malfunction exists, refer to Intermittents and Poor Connections Diagnosis in Diagnostic Information and Procedures.

TEST DESCRIPTION
The numbers below refer to the step numbers on the diagnostic table.
3. This step checks for a good pump motor ground.
5. This step checks for proper pump motor resistance.