Zachary Best

I recently swapped the TCM in my 2017 Silverado 1500, 5.3L 6 Speed. I was getting numerous codes and the truck would go into limp home mode. Prior to the swap I could get the codes to clear and the truck to drive fine if I disconnect the battery, but the problem would come back after one restart cycle. I finally took the truck to a Chevy dealer and they confirmed a new TCM was needed. I have since replaced my TCM with a "Street Smart Transmission" refurb TCM. Now that I have made the swap I am getting an additional Code, U0101. My codes are as follows: U0101 P0700 P2534 Any idea why I would be getting this new Code? Been looking high and low for the solution, only thing I can think of is the TCM connector was damaged and it is causing the weird electrical issues.

Really at a crossroads trying to find the problem I am facing with my 2017 Silverado 1500 WT, with 85K miles. This all started after 4th of July, went to a touchless carwash. I was throwing 3 separate codes. Also, as of today when I shift into R or D the transmission clunks and the D flashes on the dash, the truck seems to be in a limp home mode. I have replaced the battery with the hope that was causing all the weird electrical issues, but that worked for one drive, then all the lights came back along with 2 additional codes & limp home mode. The codes I am plagued with are as follows: p10e4 p0700 p129d p2534 p2535 I have crawled around the engine bay and the underside with no obvious signs of damage to the wiring harness. Only thing I can think of is a ground issue, but have not seen other people with this same problem. Any help would be greatly appreciated!