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Home >> Chrysler >> 2007 >> 300 Base >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0642 To P1501 >> P0688-Auto Shutdown Relay Sense Circuit Low >> Possible Causes

Possible Causes

Possible Causes 
INTERMITTENT DTC
(A22) FUSED B(+) CIRCUIT OPEN OR HIGH RESISTANCE
(K542) ASD RELAY OUTPUT CIRCUIT SHORTED TO VOLTAGE
(K542) ASD RELAY OUTPUT CIRCUIT SHORTED TO GROUND
(K542) ASD RELAY OUTPUT CIRCUIT OPEN OR HIGH RESISTANCE
AUTO SHUT DOWN RELAY
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to *PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE .