Troubleshooting Brake Controller Not Sending Signal Back to Vehicle Side 7-Way
Question:
I have no power to my blue wire on my 7 way at back of truck and also brake controller doesnt engage brakes doesnt do anything with pedal and shows 10 wen I hit over ride but brakes still do not enguage
asked by: Jordan
Expert Reply:
It sounds like you didn't install your brake controller properly, or there are some pieces missing in your wiring.
When installing a brake controller, like the Tekonsha Prodigy P3 # 90195, you have 4 functions that the wiring from the controller connects to:
Blue - 7-Way Output to Trailer
Black - 12V Power
White - Ground
Red - COLD Side of Stop Light Switch (only gets hot when brake pedal is pressed)
I would start off by using a Circuit Tester # PTW2993 to make sure that you are getting a signal on the red wire when you press the brake pedal. If you don't then that means you are not connected to the correct wire.
As for the 5 o'clock pin on your 7-Way (see attached photo), I would test that pin with the tester when you use your manual override. If you don't find power then that means the wire from your brake controller to your 7-Way is damaged somewhere or you need to finish running it to your 7-Way.
Let me know what the year/make/model is of your vehicle and if it came with a factory tow package and I can see if we have any additional information that could shed some light as to why you are having some problems with your brake controller.
Products Referenced in This Question
Tekonsha Prodigy P3 Trailer Brake Controller - 1 to 4 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Electric over Hydraulic
- Automatic Leveling
- Under-Dash Box
- Dash Mount
- Up to 4 Axles
- LCD Display
- Up to 360 Degrees
- Tekonsha
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