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Home >> Jeep >> 2021 >> Grand Cherokee Laredo E, AWD, Automatic T/Case Control >> Repair and Diagnosis >> Engine Performance >> System >> 3.6L - DTCS P0630 To P1495 >> DTC Troubleshooting >> P0685-ASD/Main Control Circuit >> Possible Causes

Possible Causes

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

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