my abs and parking brake light came on when i put new gears in my truck. i was told that when i re-program it they would go away. so i tried to program it and couldnt get it to communicate so i pulled some fuses as per hypertech and still didnt work. so i then decided to pull my radio ( jensen with a 7" monitor, media hook ups etc..). then i was able to program my truck but the abs and parking lights are still on. ive taken the truck to TWO different dealerships and they cant do anything but scratch their heads.

 

Could be a sign of an antilock issue. Did they mess with the antilock system at all?

 

not that i know of unless that is the same as theft deterent bc that code kept coming up.