|
|
P0688-AUTO SHUTDOWN RELAY SENSE CIRCUIT LOW (CONTINUED) 3. (A955) ASD RELAY OUTPUT CIRCUIT OPEN Turn the ignition off. Remove the ASD Relay. Disconnect the C3 PCM harness connector. CAUTION: Do not probe the PCM harness connectors. Probing the PCM harness connectors will damage Is the resistance below 5.0 ohms? Yes >> Go To 7 No >> Repair the open in the (A955) ASD Relay Output circuit. Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE) 4. ASD RELAY Turn the ignition off. Install a substitute relay in place of the ASD Relay. Ignition on, engine not running. With a scan tool, erase DTCs. Attempt to start the engine. With a scan tool, read DTCs. Does the DTC reset? Yes >> Go To 5 No >> Replace the ASD Relay. Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE) 5. (A922) FUSED B+ CIRCUITS Turn the ignition off. Using a 12-volt test light connected to ground, probe the (A922) Fused B+ circuits at the Relay connection. Does the test light illuminate brightly? Yes >> Go To 6 No >> Repair the open or short to ground in the (A922) Fused B+ circuits. Inspect the related fuse and repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE) HB ENGINE ELECTRICAL DIAGNOSTICS 9 - 719 |