LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Jeep >> 2024 >> Gladiator Nighthawk, Part Time T/Case Control, Automatic Trans >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> 3.6L (GPEC 2A) - DTCS P0685 To P0808 >> DTC Troubleshooting >> P0688-ASD/Main Sense Circuit >> Possible Causes
April 5, 2026: LEMON Manuals is launched! Read the announcement.

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  .