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Home >> Jeep >> 2009 >> Commander Overland, RWD >> Repair and Diagnosis >> Engine Performance >> System >> DTCS P0601 To P0694 - NGC >> P0688-Auto Shutdown Relay Sense Circuit Low >> Possible Causes
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Possible Causes

Possible Causes 
(A924) FUSED B+ CIRCUITS
(A142) ASD RELAY OUTPUT CIRCUIT OPEN
ASD RELAY
POWERTRAIN CONTROL MODULE (PCM)

Always perform the Pre-Diagnostic Troubleshooting procedure before proceeding. See  DTC-Based Diagnostics/MODULE, Powertrain Control (PCM) - Standard Procedure  . 

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