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Home >> Chrysler >> 2009 >> 300 Touring, RWD >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0645 To P1572 >> P0688-ASD/Main Sense Circuit >> Possible Causes

Possible Causes

Possible Causes 
INTERMITTENT DTC
(A22) FUSED B(+) CIRCUIT OPEN OR HIGH RESISTANCE
(F342) ASD RELAY OUTPUT CIRCUIT SHORTED TO VOLTAGE
(F342) ASD RELAY OUTPUT CIRCUIT SHORTED TO GROUND
(F342) ASD RELAY OUTPUT CIRCUIT OPEN OR HIGH RESISTANCE
AUTO SHUT DOWN RELAY
TIPM
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See  DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure