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• When Monitored: • Set Condition: Possible Causes INTERMITTENT DTC (A202) GLOW PLUG 1 CONTROL CIRCUIT OPEN (A202) GLOW PLUG 1 CONTROL CIRCUIT SHORTED TO GROUND (A202) GLOW PLUG 1 CONTROL CIRCUIT SHORTED TO VOLTAGE GLOW PLUG 1 GLOW PLUG MODULE Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - Diagnostic Test 1. CHECK FOR ACTIVE DTC Ignition on, engine not running. With the scan tool, Clear DTCs in the Engine Control Module (ECM). Perform several ignition cycles leaving the ignition on for at least 10 seconds then off for 10 seconds. With the scan tool, read the 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) 2. (A202) GLOW PLUG 1 CONTROL CIRCUIT OPEN Turn the ignition off. Disconnect the Glow Plug 1 harness connector. Disconnect the Glow Plug Module harness connector. Measure the resistance of the (A202) Glow Plug 1 Control circuit Is the resistance below 10.0 ohms? Yes >> Go To 3 No >> Repair the (A202) Glow Plug 1 Control circuit for an open. Perform ECM Verification Test Ver. 1. (Refer to 9 - ENGINE PM ENGINE ELECTRICAL DIAGNOSTICS - DIESEL 9 - 1295 |