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Welcome to the Audi Owners' Club - An Independent community!

Membership is completely free, and our community is built by enthusiasts, for enthusiasts. We’re a proudly independent, non-official club, so all the help and opinions you’ll find here come directly from members with real experience of Audi ownership.

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Lost comm. with tcm

Matthew andre
in Audi A3 (8P) Forum

Featured Replies

Hi, I have a 2010 Audi A3 2.0 turbo S Line
 

I was working on the exhaust flange with a big ratchet and a cheater bar and I accidentally grounded the motor to the top of the battery it sparked I got in the car. My four were going off. I had to reset the computer to get them to shut off, and now I have electric to the entire car but when I try to turn it over, it says ESP fault it won’t crank and OBD two says lost communication with TCM … I changed the valve body on the dsg still same codes… I’m getting power to dsg but no info on can bus pins. Help 

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