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Home >> Jeep >> 2005 >> Grand Cherokee Laredo, 3.7 K, AWD >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0642 To P1593 >> Diagnosis And Testing >> P0685-Auto Shutdown Relay Control Circuit >> Possible Causes

Possible Causes

Possible Causes 
(A924) FUSED B+ CIRCUITS
(K342) ASD RELAY CONTROL CIRCUIT OPEN
(K342) ASD RELAY CONTROL CIRCUIT SHORTED TO GROUND
ASD RELAY
PCM

Always perform the  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  before proceeding. 

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