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• When Monitored: • Set Condition: Possible Causes (K125) GENERATOR FIELD CONTROL CIRCUIT SHORTED TO BATTERY VOLTAGE GENERATOR PCM Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - Diagnostic Test 1. ACTIVE DTC NOTE: Make sure the Battery is in good condition. Using the Midtronics Battery Tester, test the Battery NOTE: Inspect the vehicle for after market accessories that may exceed the Generator System output. NOTE: Make sure the generator drive belt is in good operating condition. NOTE: Inspect the fuses in the IPM. If a fuse is open use the wire diagram/schematic as a guide, inspect the With a scan tool, read DTCs. Is the DTC active at this time? Yes >> Go To 2 No >> Refer to the INTERMITTENT CONDITION Diagnostic Procedure. Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE) 2. GENERATOR OPERATION Turn the ignition off. Disconnect the Generator Field harness connector. Using a 12-volt test light, jump across the Generator Field harness con- Ignition on, engine not running. With the scan tool, actuate the Generator Field Driver. Does the test light illuminate brightly and flash on and off? Yes >> Replace the Generator. Perform the POWERTRAIN VERIFICATION TEST. (Refer to No >> Go To 3 9 - 438 ENGINE ELECTRICAL DIAGNOSTICS KJ |