|
|
4. (V937) S/C SWITCH GROUND CIRCUIT SHORTED TO VOLTAGE Turn the ignition off. Remove the Main Relay. Connect a jumper wire between cavity B7 and cavity B9 of the Main Turn the ignition on. Measure the voltage of the (V937) S/C Switch Ground circuit. Is there any voltage present? Yes >> Repair the (V937) S/C Switch Ground circuit for a short to voltage. Perform the ECM Verification Test Ver.1. (Refer to 9 - No >> Go to 5 5. S/C SWITCH Turn the ignition off. Connect the Engine Control Module (ECM) harness connector. Turn the ignition on. With the scan tool, monitor the S/C Switch Voltage. While monitoring the scan tool, connect a jumper wire between the Does the scan tool display below 0.1 volt with the jumper wire Yes >> Replace the Speed Control Switches in accordance with the Service Information. Perform the ECM Verification Test Ver.1. (Refer to 9 - No >> Go to 9 PM ENGINE ELECTRICAL DIAGNOSTICS - DIESEL 9 - 1195 |