C1243

CIRCUIT DESCRIPTION
When the EBCM/EBTCM grounds the pump motor relay, the following actions occur:
^ The relay closes.
^ The relay provides battery voltage in order to operate the pump.

CONDITIONS FOR SETTING THE DTC
^ The pump motor relay is commanded OFF after the motor has been ON.
^ The pump motor was ON.
^ The EBCM/EBTCM sensed a stuck or a slowly turning pump 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 Aids.

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