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5. (F858) EXHAUST GAS PRESSURE SENSOR 5 VOLT SUPPLY CIRCUIT OPEN OR HIGH RESISTANCE Measure the resistance of the (F858) Exhaust Gas Pressure Sensor 5 Is the resistance below 10.0 ohms? Yes >> Go to 10 No >> Repair the (F858) Exhaust Gas Pressure Sensor 5 Volt Supply circuit for an open circuit or high resistance. Perform the ECM Verification Test Ver. 1. (Refer to 9 - 6. EXHAUST GAS PRESSURE SENSOR Turn the ignition on. With the scan tool, Clear DTCs. With the scan tool, select View DTCs. NOTE: The scan tool should display an Exhaust Gas Pressure Sensor high voltage or open DTC with the Does the scan tool display the DTC(s) as described above? Yes >> Replace the Exhaust Gas Pressure Sensor in accordance with the Service Information. Perform the ECM Verification Test Ver. 1. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING) No >> Go to 7 7. (K35) EXHAUST GAS PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO GROUND Turn the ignition off. Disconnect the Engine Control Module (ECM) connector. Measure the resistance between ground and the (K35) Exhaust Gas Is the resistance above 10.0 ohms? Yes >> Go to 8 No >> Repair the (K35) Exhaust Gas Pressure Sensor Signal cir- cuit for a short to ground. Perform the ECM Verification Test Ver. 1. (Refer to 9 - 9 - 1416 ENGINE ELECTRICAL DIAGNOSTICS - DIESEL LX |