Transmission DTC

[nitrobass24]

Anyone know what this means. It keeps coming up and now the service wrench light has come on.

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[Boen]

Possibly

 

[stonefly]

I had this DTC and service light during a trailer trip in Death Valley last year. PCM SW update appears to have corrected it. I'm currently on a 4K mile trip and the truck is pulling flawlessly. It seems also to have corrected the high transmission temps observed, noted in my prior posts if you're interested. It also seems like the air shutters are opening wider and more often to correct mildly elevated temps. I've not seen a temp > 230F when climbing grades.
If your dealer is like mine, they were looking for a physical cause for days and finally replaced PCM SW as directed by Ford Engineering to address the fault.

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