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3. GLOW PLUG CONTROL CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect each Glow Plug harness connector. Disconnect the Glow Plug Module harness connector. Measure the resistance between ground and each Glow Plug Control circuit. Is the resistance below 1000 ohms for any of the measurements? Yes >> Repair the appropriate Glow Plug Control circuit for a short to ground. Perform the ECM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING). No >> Go To 4 4. GLOW PLUG CONTROL CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect each Glow Plug harness connector. Disconnect the Glow Plug Module harness connector. Turn the ignition on. Measure the voltage of each Glow Plug Control circuit. Is the voltage below 1.0 volt for each circuit? Yes >> Go To 5 No >> Repair the appropriate Glow Plug Control circuit for a short to voltage Perform the ECM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING). 5. GLOW PLUG Turn the ignition off. With the scan tool, erase ECM DTCs. Refer to the Service Information and perform the Glow Plug Test on each Glow plug. Did each Glow Plug pass the test? Yes >> Replace the Glow Plug Module. Perform the ECM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING). No >> Replace the appropriate Glow Plug in accordance with the Service Information. Perform the ECM Verification Test Ver. 1 (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING). 9 - 1158 ENGINE DIESEL DIAG KJ |