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P1816 Diagnostic Trouble Code Discussion for May 2010

TFP Valve Position Switch Indicates Park/Neutral With Drive Ratio

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Trouble Ticket Help Requests for DTC P1816
Help Request Posted
2003 Ford Explorer Sport XLS 4.0L No Start VIN: 1FMZU70E93
P1816: Transmission Neutral Safety Switch Circuit Failure. We have had this truck towed back several times for a no start. Everytime we start our diag the darn thing starts right up and runs fine. We have drivin this thing several hunderd miles trying everything we can think of to get it to fail with no luck. Tested f...
May 06, 2010