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Home >> Jeep >> 2021 >> Cherokee Altitude, 4WD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 21 (3.2L - DTCS P054C To P1129) >> DTC Troubleshooting >> P0685-ASD/Main Control Circuit >> Possible Causes
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Possible Causes

WARNING: This page is about a different variant/trim than selected.
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  .