audi tt brake light, traction, and abs lights on
 

I have an audi tt 2000 model i purchased from a lady. Before i brought iot she let the batt go dead and hooked the batt cables to the wrong post. I had to change the computer box in order for it to start. After that, the abs, brake, and traction lights stay on. Does anyone know where the sensors are located for those parts or would know what the problem actually could be? Someone please help its starting to irritate me and i need it fixed:confused:

I had a similiar issue with my e38 bmw...the abs module went bad, and had to be replaced. The dealer wanted wanted an absurd amount of money for the part, so I had it rebuilt from modulemaster.com for a few hundred bucks. No problems since.

Hope this provides some guidance, maybe somebody else can chime in....

thanks this may help alot...does anyone else have any suggestions to add on?