I recently changed ABS modulator, Transmission too. The story is that the TCS light was on even before changing all that crap. Sometimes in the morning and actually during the day, when I start the car, and change gear from parking to whatever reverse or drive, something kicks really hard it even shakes the car, D5 start to flash, and car won't change gears, only from first to second. The funny thin that this shit is still happening after I changed the tranny. So, when the D5 start to flash check engine light come out. The funny thing is that if I reset everything( unplug the positive from battery for couple of minutes) everything becomes normal again,I mean no check engine light, and tranny works fine, but the frikin TCS light is there no matter what. Now, I described this exactly how it happen all the times, about twice a week I have to go thru reset process. Can anyone reffering to what I just described tell me what the hell is going on???????????? My idea that is ECU, but maybe I am wrong. Appreciate any help!!

 

Errr sounds like you have another bad transmission. Don't stress, this has happened to lots of people. Their second transmissions don't last a day or around the block. Time to take it back.

 

I'm on 3.5 months.