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8. ASD RELAY CONTROL CIRCUIT OPEN Turn the ignition off. Remove the ASD Relay from the IPM. Measure the resistance of the ASD Relay Control circuit between the IPM connector and the ECM harness con- Is the resistance below 10.0 ohms? Yes >> Go To 9 No >> Repair the ASD Relay Control circuit for an open. Perform the ECM Verification Test Ver. 1. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING) 9. ASD RELAY CONTROL CIRCUIT SHORTED TO VOLTAGE Connect a jumper wire between cavity 30 and cavity 87 of the ASD Relay connector in the IPM. Turn the ignition on. Measure the voltage on the ASD Relay Control circuit. Is the voltage above 1.0 volt? Yes >> Repair the ASD Relay Control circuit for a short to voltage. Perform the ECM Verification Test Ver. 1. (Refer to 9 - ENGINE - DIAGNOSIS AND TESTING) No >> Test Complete. 9 - 1892 ENGINE ELECTRICAL DIAGNOSTICS - DIESEL LX |