× Auto Repair Pros Member Benefits TechHelp Knowledge Base Forums Resources My iATN Marketplace Chat Pricing About Us Join Industry Sponsors Video Members Only Repair Shops Auto Pro Careers Auto Pro Reviews
Join Now
International Automotive Technicians Network
Re: Transmission Fail Safe Mode
Posted to Technical Discussion Forum on 6/10/2018

Most likely a TCM problem. If there was a communication problem there should be some U codes in other modules. Disconnect the connector and drive and see if there are U codes in other modules.

If U codes appear then the network wiring is probably good. The T... Login to read more.