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• When Monitored: • Set Condition: Possible Causes INTERMITTENT DTC BATTERY POSITIVE CIRCUIT HIGH RESISTANCE GENERATOR CASE GROUND HIGH RESISTANCE (A931) FUSED B+ CIRCUIT HIGH RESISTANCE (Z925) GROUND CIRCUIT(S) HIGH RESISTANCE POWERTRAIN CONTROL MODULE (PCM) Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - Diagnostic Test 1. DTC IS ACTIVE NOTE: Diagnose and repair any charging system DTCs before proceeding with this test. NOTE: Inspect and test the battery in accordance with the Service Information before continuing with this NOTE: Inspect the generator drive belt before continuing with this test. NOTE: Inspect the vehicle for aftermarket accessories that may exceed the Generator System output. NOTE: Inspect the fuses in the IPM. If an open fuse is found, use the wire diagram/schematic as a guide With the scan tool, select View DTCs. Is the status Active for this DTC? Yes >> Go to 2 No >> Refer to the *CHECKING FOR AN INTERMITTENT DTC Diagnostic Procedure. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING) 2. BATTERY POSITIVE (+) CIRCUIT HIGH RESISTANCE WARNING: When the engine is operating, do not stand in direct line with the fan. Do not put your hands NOTE: Make sure all testing equipment and cables are clear of any engine parts before starting the engine. Measure the voltage between the B (+) Terminal at the Generator and the Battery Positive (+) Post. Is the voltage above 0.4 volts? Yes >> Repair the Battery Positive (+) circuit for high resistance. Perform the PCM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING) No >> Go to 3 PM ENGINE ELECTRICAL DIAGNOSTICS - GPEC 9 - 471 |