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P0688-AUTO SHUTDOWN RELAY SENSE CIRCUIT LOW (CONTINUED) 6. (K342/F42) ASD RELAY OUTPUT CIRCUIT OPEN 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 (K342/F42) ASD Relay Output circuit. Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE) 7. PCM NOTE: Before continuing, check the PCM harness connector terminals for corrosion, damage, or terminal Were there any problems found? Yes >> Repair as necessary. Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE) No >> Replace and program the Powertrain Control Module per Service Information. Perform the POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE) 9 - 740 ENGINE ELECTRICAL DIAGNOSTICS WK |