Ford Powerstroke Diesel Forum banner

tbc fault, no turn or stop lamps

1 reading
5.7K views 3 replies 2 participants last post by  Rbesola  
#1 ·
When i hit the brakes i blow the 20amp fuse killing my turn signals/flashers/stop lamps and tbc fault comes up in the dash with the annoying alarm.Any ideas?:dunno:needs fixed asap.going out of town next week.thanks.
 
#3 ·
Ugh, sound like you have a short in one of the wires. That's going to be unpleasant to find. I'd start looking back under the bed and follow the wires from the rear lights back up to the cab. You might get lucky and find that a branch or something came up underneath and pulled a wire bundle loose. Pay close attention where the wires pass through the frame or any sheet metal, may have worn through.
 
#4 ·
Traced the wires from the back all the way to the pcm and the loom is all in tack.Socket was coroded really bad so i cleaned it with contact cleaner and i made it alot farther before it popped the fuse?But it still did so idk.My buddy works at the ford garage a mile down the road.I'll have him look at it.Im sure he cha check it with a meter of some sort to at least narrow it down to a wire or something.