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P0688 Diagnostic Trouble Code Discussion for May 2019

ASD Relay Sense Circuit Low


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Trouble Ticket Help Requests for DTC P0688
Help Request Posted
2003 Dodge Ram 2500 ST 5.7L No Start VIN: 3D7KU26D33
P0688: Asd relay sensor circuit low. Came in no start no spark no injector pulse. Found no control on relay control circuit. If i ground that circuit with a test light it starts and runs as long as its grounded. Do these trucks have problems with the harnesses rubbing or bad tipm box? thank y...
May 29, 2019