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Home >> Jeep >> 2015 >> Grand Cherokee Laredo, AWD >> Repair and Diagnosis >> Engine Performance >> System >> 3.6L - DTCS P0501 To P1128 >> DTC Troubleshooting >> P0685-ASD/Main Control Circuit >> Possible Causes
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Possible Causes

Possible Causes
ASD RELAY CONTROL CIRCUIT SHORTED TO VOLTAGE
ASD RELAY CONTROL CIRCUIT SHORTED TO GROUND
ASD RELAY CONTROL CIRCUIT OPEN
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  .