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2. (K601) EGR AIRFLOW CONTROL VALVE CONTROL CIRCUIT OPEN OR HIGH RESISTANCE Turn the ignition off. Disconnect the EGR Airflow Control Valve connector. Disconnect the Engine Control Module (ECM) connector. Measure the resistance of the (K601) EGR Airflow Control Valve Control Is the resistance below 10.0 ohms? Yes >> Go to 3 No >> Repair the (K601) EGR Airflow Control Valve Control circuit for an open circuit or high resistance. Perform the ECM Verification Test Ver. 1. (Refer to 9 - 3. (K601) EGR AIRFLOW CONTROL VALVE CONTROL CIRCUIT SHORTED TO GROUND Measure the resistance between ground and the (K601) EGR Airflow Is the resistance below above 1000 ohms? Yes >> Go to 4 No >> Repair the (K601) EGR Airflow Control Valve Control circuit for a short to ground. Perform the ECM Verification Test Ver. 1. (Refer to 9 - PM ENGINE ELECTRICAL DIAGNOSTICS - DIESEL 9 - 1127 |