SeanD16 Posted May 27, 2020 Share Posted May 27, 2020 2014 f350 Coming home yesterday I pulled out from a light and had a hard shift. A couple miles later slowed to make a turn and my traction control, hill decent fault, and wrench light all came on,. Truck went into limp mode. Drove 1/4 mile to my house and parked. Now truck won’t start unless you put it in neutral. Code says tcm not communicating. Would that cause all those lights and issues or do I have other problems? Quote Link to comment Share on other sites More sharing options...
YT90SC Posted May 30, 2020 Share Posted May 30, 2020 You need a much more capable scan tool. If the TCM were truly offline, it wouldn't start in neutral. It could still be a networking problem, a T/R sensor, a wiring problem, an internally shorted trans speed sensor... the list goes on. Quote Link to comment Share on other sites More sharing options...
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