Oh, that's odd that the battery cables can do that haha. Mom is really worried and upset about this new problem with the trans, it shakes and grinds horribly especially if you slow down and then have to accelerate again and it can't seem to shift. It feels and sounds like the whole thing is going to crack open and fall apart, you hear all the metal clunking and stuff too whenever it does it. I read somewhere though someone that had the same issue with a couple of Monte Carlos and made the mistake of trying a replaced transmission, that they cut a brown wire for the TCC in the wiring harness and that solved the problem of the circuit stuck on code as well as the physical symptoms? I originally didn't want to go cutting wires if that couldn't be put back together afterwards if you needed to, but it's so bad at this point I just want to make it stop so my mom can feel better about driving her car to work etc. It's really frightening to be honest how it runs...whole frame of the car shaking violently. Is the trans' wiring harness accessible from above/under the hood and doesn't require lifting the car or taking anything apart?