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2. MEASURE THE BOOST PRESSURE SENSOR SIGNAL CIRCUIT VOLTAGE Turn the ignition off. Disconnect the Boost Pressure Sensor harness connector. Turn the ignition on. Measure the voltage between ground and the Boost Pressure Sensor Is the voltage above 1.0 volt? Yes >> Go To 3 No >> Go To 4 3. BOOST PRESSURE SENSOR SIGNAL CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Disconnect the ECM harness connectors. Remove the ASD Relay from the PDC. Connect a jumper wire between cavity 30 and cavity 87 of the ASD Turn the ignition on. Measure the voltage between ground and the Boost Pressure Sensor Is the voltage above 1.0 volt? Yes >> Repair the Boost Pressure Sensor Signal circuit for a short to voltage. Perform the ECM Verification Test Ver. 1 (Refer to 9 - No >> Replace and program the Engine Control Module in accor- dance with the Service Information. Perform the ECM Verification Test Ver. 1 (Refer to 9 - 9 - 866 ENGINE DIESEL DIAG KJ |