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Home >> Chrysler >> 2012 >> 300 SRT-8 >> Repair and Diagnosis >> Engine Performance >> System >> 6.4L - DTCS P0522 To P1521 >> Diagnosis And Testing >> P0685-ASD/Main Control Circuit >> Possible Causes

Possible Causes

Possible Causes
(K51) ASD RELAY CONTROL CIRCUIT SHORTED TO GROUND
PCM POWER AND GROUND CIRCUITS
ASD RELAY
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  STANDARD PROCEDURE  .