FYI We found the problem in the TIPM (total integrated power module) replaced and problem cleared. Thanks to everyone that replied.

Ted
Post Tire and Lube
Post, TX

This truck has two brake lamps on the rear. The upper lamp in the control board is used for turn signal and brake lamp. The turn signal works, but the brake lamp does not work. The center lamp does work when brakes are pressed. The right side lights work fine. Any ideas on what to do next?

Thanks for the info guys. I hope that one day I can repay the favor.

Thanks guys for the info. Sorry I did not get back sooner.

I just replaced the Body Security Module on this truck, and I am not sure if this should just plug and play, or if there is a relearn procedure or something similar. Any ideas??

Thanks,
Ted

I have a 2003 Chevy 2500HD 6.0L here that came in with it going into reduced engine power. Customer has had it at the Chevy dealer, they applied dieelectric grease to the TAC module, replaced the brake switch for cruise control, and installed updated software. Then he took it to another shop and the...