ahunn
Member
So I was driving and suddenly the tahoe bogs down. Stopped shifting and I noticed I had to rev it higher to get it to move. I got nervous of course and pulled over to the side of the road. I noticed that I could no longer tell that I was in drive nor any other gear on the prndl. I decided to check the transmission temp and nothing was showing there either.
When I made it home I connected my tech 2 and found that the tcm wasn't communicating. Apparently they can die just like that without any warning..?
I bought a new tcm module from the dealership for 101$. Tried to program the new one with the tech 2 but it fails at 80% when installing the calibrations. I can't figure out what the heck is wrong. I've never had issues programming before. Anyone have any idea what could cause it not to work?
When I made it home I connected my tech 2 and found that the tcm wasn't communicating. Apparently they can die just like that without any warning..?
I bought a new tcm module from the dealership for 101$. Tried to program the new one with the tech 2 but it fails at 80% when installing the calibrations. I can't figure out what the heck is wrong. I've never had issues programming before. Anyone have any idea what could cause it not to work?
Last edited: