I’ve got same problem on 2014 wrangler, dealer replaced shift mod, and tipm, gave back to me not working, now they want to do transmission computer; they can’t find out just keep charging me
I was hoping to view a permanent fix. C’mon, there must be a Jeep wizard out there, who’s had this fault and resolved it successfully. This is a good thread for the community, so let’s hope someone comes through.
One of the hardest things now is the lack of access to related wiring diagrams, that is unless you have a dealer spec’d diagnostic unit.