TBC fault?! ASAP help - Ford Powerstroke Diesel Forum
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Old 01-09-2012, 11:22 AM
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TBC fault?! ASAP help

what is the TBC fault? its coming up on the dash by the speedo and stuff. I haven't had time to search it. truck is a 06 HD 114K on it its tuned but not sure by who its on the PCM and it is going to get set back to factory. I think its from the tune. thanks!
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Old 01-09-2012, 11:30 AM
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it has to do with the trailer wiring, not the tune...
do you have a trailer hooked up?
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Old 01-09-2012, 09:31 PM
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Nope no trailer is hooked up. it rarely ever has a trailer hooked on it. that makes sense... Trailer break controller fault. Now that you say that it comes on when your slowing down.

Last edited by mornin-it-up; 01-09-2012 at 09:35 PM.
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Old 01-09-2012, 09:34 PM
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yeah some idiot was saying it had to do with the turbo... I'm like if it was to the turbo I would know this thing has lots of power and in order for that you need a turbo to support you...
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Old 01-09-2012, 09:46 PM
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could be a short in your wiring, or check your trailer fuses.
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Old 01-09-2012, 10:05 PM
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all those fuses should be in the cab right? I know in the ranger I had there was a fuse in a little box on the bumper... I think it was a aftermarket add on of some sort. thanks for the fast reply's also!
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Old 01-09-2012, 10:17 PM
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I think there might be some in the engine bay.

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Old 01-09-2012, 10:45 PM
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TBC = trailer brake controller fault. should be a reset button under the shifter to the right of the dash that will clear this.
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Old 01-10-2012, 11:37 AM
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My 06 did the same thing,and wouldnt start...had it towed to ford,they replaced trailer wire harness,and also my high pressure injector regulator and standpipes....not sure if the last couple had anything to do with TBC fault...lol.....
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Old 01-10-2012, 11:39 AM
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about 4 weeks before it died and the TBC fault came up on dash,when cranking motor it took a helluva long time to turn over......those were my symptoms,not sure what you experienced before hand...this happened in july 2010!!Are you in a no start situation?
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