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Home >> Dodge and Ram >> 2021 >> ProMaster 2500 >> Repair and Diagnosis >> Engine Performance >> System >> 3.6L - DTCS P0572 To P1239 >> DTC Troubleshooting >> P0685-ASD/Main Control Circuit >> Possible Causes
July 1: So it begins. Don't worry, this is not in the correct legal jurisdiction!

Possible Causes

POSSIBLE CAUSES
ASD RELAY CONTROL CIRCUIT SHORTED TO VOLTAGE
ASD RELAY CONTROL CIRCUIT SHORTED TO GROUND
ASD RELAY CONTROL CIRCUIT OPEN/HIGH RESISTANCE
ASD RELAY
POWER DISTRIBUTION CENTER (PDC)
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .