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Chevy 3500hd TCM issues.


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I have a 2012 Chevy 3500 HD. I lost communication with the transmission control module. After sending the transmission control module off to be repaired and receiving it back I installed it in my truck and transmission now works fine and I have no codes but my abs and my emergency brake lighter on. The transmission control module had a software fault in it so I believe something else is causing a short or bad connection. I have had intermittent codes for for exhaust temperature sensor. Could this be something that is causing that? Any help would be greatly appreciated

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