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P1685 Diagnostic Trouble Code Discussion for July 2017

Transmission Control Module Power Up Temperature Sensor Circuit Low


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Trouble Ticket Help Requests for DTC P1685
Help Request Posted
2002 Dodge Neon SE 2.0L No Start, Stall VIN: 1B3ES46C12
P1685: Smart Key Immobilizer Module Invalid Key. This vehicle was driven in and dropped off for an intermittent no start/start and stall condition. I got the problem to occur twice but it always starts and runs after a couple tries. I can't get the problem to occur long enough to perform much diagnostic on i...
July 19, 2017