Mechanics

TCM COMMUNICATION LOST CODE U0101

2006 Pontiac G6 • 142,000 miles

I have Pontiac G6 which is giving me OBD2 code U0101. I went to a Junk yard and got a TCM and tried to replace it. It still gives me U0101 plus U0001. Can I replace a TCM without Dealer involved?
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Harjotdev
September 22, 2012.



No, it has to be flashed. You may not be able to flash a used one to the car. It may have to be new.

Did anyone check this system to verify the tcm has failed?

Roy

ASEMaster6371
Sep 22, 2012.