Rear light bar

[eljefe]

Good morning. I set up my Prodigy brake controller a few weeks ago, programmed using AlphaOBD. Noticed today that the light bar I installed under the tailgate is on with the headlights only, no brake light or turn signals. Anybody else have this happen after installing a trailer brake? The light bar is plugged in to the wiring harness. Thanks.

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[eljefe]

Anybody???

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[HDGoose]

Bueller?

 

[Rado]

I am no help but have you checked the connection of the rear bar ? , I picked up a tester for the sockets, a cheap and easy way to test !
Like this . I got the 5 prong flat !
https://www.amazon.com/WennoW-Trail...s=trailer+light+tester&qid=1617373028&sr=8-10

 

[mtnrider]

What did you enable with Alfa? This is a aftermarket trailer brake so curious why you had to do anything to enable it? I could see if you were installing the factory controller.

Maybe that controller needs to have a trailer connected before it enables the outputs?

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[eljefe]

What did you enable with Alfa? This is a aftermarket trailer brake so curious why you had to do anything to enable it? I could see if you were installing the factory controller.

Maybe that controller needs to have a trailer connected before it enables the outputs?

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So I didn’t need to change the Trailer Selected CSM, Trailer Name CSM, Trailer Type CSM from NO to YES and Enable the ITBM/HWM Integrated Trailer Brake Controller?


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[mtnrider]

So I didn’t need to change the Trailer Selected CSM, Trailer Name CSM, Trailer Type CSM from NO to YES and Enable the ITBM/HWM Integrated Trailer Brake Controller?


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I wouldn't think so, Not unless you were installing the factory trailer brake. I would try and set those back and see what happens? It's easy enough to try just to see.


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[crash68]

Noticed today that the light bar I installed under the tailgate is on with the headlights only, no brake light or turn signals. Anybody else have this happen after installing a trailer brake? The light bar is plugged in to the wiring harness.

If your light bar is plugged/wired into the trailer plug wiring, use a meter to check these fuses:
F53 - ATR 20 amp Left Trailer lights
F81 - ATR 20 amp Right Trailer lights
F29 - FMM 20 amp Trailer Park lights
F28 - FMM 20 amp Trailer Back up lights