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Home › Dodge and Ram › 2021 › Durango GT, AWD › Repair and Diagnosis › Engine Performance › System › 3.6L - DTCS P0643 To P152C › 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.