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Home › Jeep › 2025 › Compass Trailhawk › Repair and Diagnosis › Engine Performance › System › 2.0L - DTCS P0633 To P0698 › DTC Troubleshooting › P0688 ASD/Main Sense Circuit › Set Condition

Set Condition

No voltage sensed at the Powertrain Control Module (PCM) when the ASD relay is energized.