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P0688 Diagnostic Trouble Code Discussion for June 2019

ASD Relay Sense Circuit Low


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Trouble Ticket Help Requests for DTC P0688
Help Request Posted
2008 Jeep Grand Cherokee Limited 4.7L Cuts out VIN: 1J8HS58N88
P0688: auto shut down relay control circuit. ... and it can be running for 10-15 min and it just cuts off it will restart right of way. got code p0688 and p0305. replaced spark plugs and coil, check wiring to relay everything look good. replaced pcm and still shutting down. only code now is p0688 I ...
June 12, 2019