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P1388-AUTO SHUTDOWN RELAY CONTROL CIRCUIT (CONTINUED) For the Engine circuit diagram (Refer to 8 - ELECTRICAL/ELECTRONIC CONTROL MODULES/ENGINE CON- For a complete wiring diagram Refer to Section 8W. • When Monitored: • Set Condition: Possible Causes GOOD TRIP EQUAL TO ZERO ASD RELAY (A14) FUSED B+ OUTPUT CIRCUITS (K51) ASD RELAY CONTROL CIRCUIT OPEN (K51) ASD RELAY CONTROL CIRCUIT SHORTED TO GROUND PCM Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. (Refer to 9 - ENGINE - 1. GOOD TRIP EQUAL TO ZERO Ignition on, engine not running. With the scan tool, read DTCs and record the related Freeze Frame data. Is the Good Trip Counter displayed and equal to zero? Yes >> Go To 2 No >> Refer to the INTERMITTENT CONDITION Symptom (Diagnostic Procedure). Perform POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE) 2. ASD RELAY Turn the ignition off. Remove the ASD Relay from the PDC. Measure the resistance between the coil terminals of the ASD Relay. Is the resistance between 50 and 80 ohms? Yes >> Go To 3 No >> Replace the ASD Relay. Perform POWERTRAIN VERIFICATION TEST. (Refer to 9 - ENGINE - STANDARD PROCEDURE) 9 - 1950 ENGINE - ELECTRICAL DIAGNOSTICS - SRT-10 DR/DH |