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2. (G6) ENGINE OIL PRESSURE SWITCH SIGNAL CIRCUIT OPEN Turn the ignition off. Disconnect the Engine Oil Pressure Switch harness connector. Disconnect the ECM harness connectors. Measure the resistance of the (G6) Engine Oil Pressure Switch Signal Is the resistance below 10.0 ohms? Yes >> Go To 3 No >> Repair the (G6) Engine Oil Pressure Switch Signal circuit for an open. Perform the ECM Verification Test Ver. 1 (Refer to 9 - 3. (G6) ENGINE OIL PRESSURE SWITCH SIGNAL CIRCUIT SHORTED TO GROUND Measure the resistance between ground and the (G6) Engine Oil Pres- Is the resistance above 1000 ohms? Yes >> Go To 4 No >> Repair the (G6) Engine Oil Pressure Switch Signal circuit for a short to ground. Perform the ECM Verification Test Ver. 1 (Refer to 9 - PM ENGINE ELECTRICAL DIAGNOSTICS - DIESEL 9 - 1159 |