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myredracer's avatar
myredracer
Explorer II
Jun 26, 2019

TT brakes not working right - new truck & new wiring

Just rewired all the brake wiring in our TT to all #12 right up to the junction box in the A-frame. Recently installed the Prodigy P3 brake controller out of our old F250 in our "new" 2012 GMC Sierra...
BFL13's avatar
BFL13
Explorer II
Jun 27, 2019
You don't mention much about the display during all this. What does the display say for warnings etc?

https://www.tekonsha.com/support/installation/N90195.pdf

Not clear if there should be any output unless decelerating. (Proportional) ?

Something about no output if you have the brake light on ("stop lamp active") at the same time when you connected gets you a warning display.

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