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Home >> Jeep >> 2023 >> Gladiator Freedom, Part Time T/Case Control >> Repair and Diagnosis >> Engine Performance >> System >> 3.6L (GPEC 2A) - DTCS P0630 To P0807 >> DTC Troubleshooting >> P0688-ASD/Main Sense Circuit >> Possible Causes

Possible Causes

Possible Causes
ASD CONTROL OUTPUT CIRCUIT OPEN/HIGH RESISTANCE
ASD RELAY OUTPUT CIRCUIT SHORTED TO GROUND
AUTO SHUT-DOWN (ASD) RELAY/MAIN RELAY
POWERTRAIN CONTROL MODULE (PCM)

Always perform the PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE before proceeding. Refer to  PRE-DIAGNOSTIC TROUBLESHOOTING PROCEDURE  . 

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