I have an 09 aveo stuck in lomp mode. It happened after a hot pos cable came into direct contact with the trans directly. I replaced every accessible trans sensor with no change, tested to make sure I had ref voltage going to all sensors and finally replaced the tcm. Only to have it not communicate. Gm dealership said that the tcm needs no programming and shout work out of the box. Which is contrary to everything ive heard. I contacted a trans specialist in town who assured me that it did need to be programmed or "flashed" however after he had my car for a few weeks he called and told me that the tcm I bought is not right. And it doesnt contain the propper programming for my car. Its a 2009 chevy aveo ls. 1.6 litre with alsin 4 speed. The shop told me that the car I have was actually produced in south korea and is more of a daewoo than a chevy. So what it boils down to, im almost positive the tcm is the issue ( no speedo stuck in third. No hold light") I just need to know if there really is daewoo progaming for my 2009 chevy and where can I find it?
Monday, February 22nd, 2016 AT 4:54 PM