Is Normal Brake Controller Wiring Have Three Heavier Gauge Wire and One Lighter Gauge
Question:
I have a 2023 Thor MH with an E450 chassis. I found your helpful pix on finding the brake controller plug behind the coin tray. The plug looks like it will fit your adapter but 1 wire is a small gage. There are 3 wires maybe 12 gage that are blue, red and black. The 4th is a small gage brown w/purple stripe I have pix if that will help. It should be white, maybe not a B/C plug? Thanks!
asked by: Dave S
Helpful Expert Reply:
What you are seeing is normal. There are three brake controller wires that will need to carry more current so they will be a heavier gauge wire and those are ground, 12 volt power, and output to the trailer brakes. Then there is one wire that is just a signal wire which doesn't need to carry a lot of current. That is the brake light signal circuit which is basically what tells the controller to start activating the trailer brakes.
Product Page this Question was Asked From
Tekonsha Plug-In Wiring Adapter for Electric Brake Controllers - Ford
- Accessories and Parts
- Trailer Brake Controller
- Wiring Adapter
- Plugs into Brake Controller
- Vehicle Specific
- Tekonsha
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