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• When Monitored: • Set Condition: Possible Causes ENGINE CONTROL MODULE GLOW PLUG MODULE GLOW PLUG MODULE CONTROL CIRCUIT OPEN GLOW PLUG MODULE CONTROL CIRCUIT SHORTED TO GROUND GLOW PLUG MODULE CONTROL CIRCUIT SHORTED TO VOLTAGE INTERMITTENT CONDITION Diagnostic Test 1. CHECK FOR ACTIVE DTC NOTE: If the ECM detects and stores a DTC, the ECM also stores the engine/vehicle operating conditions NOTE: Before erasing stored DTCs, record these conditions. Attempting to duplicate these conditions may With the scan tool, erase ECM DTCs. Perform several engine run cycles, turning the ignition off for at least 20 seconds between each engine run cycle. Turn the ignition on and wait at least 90 seconds. With the DRB, read ECM DTCs. Did this DTC set again? Yes >> Go To 2 No >> Refer to the *CHECKING FOR AN INTERMITTENT DTC Diagnostic Procedure. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING) 9 - 1246 ENGINE DIESEL DIAG KJ |