TCM COMMUNICATION LOST CODE U0101

  • Tiny
  • harjotdev
  • 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?

Saturday, September 22nd, 2012 AT 7:51 PM

1 Answer

  • Tiny
  • ASEMaster6371
  • Expert
  • 25,502 posts

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

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Saturday, September 22nd, 2012 AT 7:59 PM

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