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Home >> Jeep >> 2024 >> Grand Cherokee Summit >> Repair and Diagnosis >> External Pages >> Different car >> Section 30 (5.7L - DTCS P0633 To P0688) >> DTC Troubleshooting >> P0688-Auto Shutdown Relay Sense Circuit Low >> Possible Causes

Possible Causes

WARNING: This page is about a different car, the 2024 Jeep Grand Cherokee L. However, it is still accessible from the selected car via links, so may be relevant.
Possible Causes
ASD RELAY OUTPUT CIRCUIT OPEN
ASD RELAY OUTPUT CIRCUIT SHORTED TO GROUND
POWER DISTRIBUTION CENTER (PDC)
POWERTRAIN CONTROL MODULE (PCM)

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