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Home >> Jeep >> 2012 >> Wrangler Sahara, Automatic Trans >> Repair and Diagnosis >> Engine Performance >> System >> 3.6L - DTCS P0645 To P2138 >> Diagnosis And Testing >> P0685-Auto Shutdown Relay Control Circuit >> Possible Causes

Possible Causes

POSSIBLE CAUSES 
(K51) ASD RELAY CONTROL CIRCUIT OPEN
(K51) ASD RELAY CONTROL CIRCUIT FOR A SHORT TO VOLTAGE
(K51) ASD RELAY CONTROL CIRCUIT FOR A SHORT TO GROUND
LOSS OF POWERTRAIN CONTROL MODULE POWERS OR GROUNDS
ASD RELAY
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  .