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Grumpaw
Well-Known Member
- First Name
- Steve
- Joined
- Jul 1, 2021
- Threads
- 84
- Messages
- 5,862
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- 29,210
- Location
- Fishersville, Va.
- Vehicle(s)
- Previous 2021 Ranger, Now 2019 Ford Expedition
- Occupation
- Navy Vet., Retired Police Sgt., Grumpy Old Senior Citizen
Welcome to the forum.
Wires are taped to the wire bundle under the dash to the left of the brake. Usually taped to the bundle via a piece of blue tape.
Wires will have a piece of black shrink tubing covering the ends.
The 4 wire colors are...
White...ground....goes to white ground wire on brake control
Blue......brake output wire.....goes to blue brake output wire on brake control
White/Purple....goes to red brake input wire.
Yellow/Red....goes to 12 volt power wire which is black.
The 4 wires that come with the brake controller, red/white/black/blue are industry standard and will mean the same no matter what brand controller you use.
Check out the towing section...plenty of info and photos to help.
Wires are taped to the wire bundle under the dash to the left of the brake. Usually taped to the bundle via a piece of blue tape.
Wires will have a piece of black shrink tubing covering the ends.
The 4 wire colors are...
White...ground....goes to white ground wire on brake control
Blue......brake output wire.....goes to blue brake output wire on brake control
White/Purple....goes to red brake input wire.
Yellow/Red....goes to 12 volt power wire which is black.
The 4 wires that come with the brake controller, red/white/black/blue are industry standard and will mean the same no matter what brand controller you use.
Check out the towing section...plenty of info and photos to help.
Last edited:
EJH
Well-Known Member
I only located two wires on my 2021 (and only needed those two for the OEM Redarc Tow Pro). Those two wires were a pain in the rear to locate also. I thought my truck did not have them. You need to keep feeling around and tugging on the wire bundles. They will materialize 
I located these two wires only:
Brake output, which I think is blue.
12V power, which I think was black.
I grounded my Redarc to a nut on the chassis, as per the install instructions.
The other wire needed comes from the rear mounted brake light, for the brake signal to the TBC.
Good Luck.
I located these two wires only:
Brake output, which I think is blue.
12V power, which I think was black.
I grounded my Redarc to a nut on the chassis, as per the install instructions.
The other wire needed comes from the rear mounted brake light, for the brake signal to the TBC.
Good Luck.
Fritz
Well-Known Member
You guys have the tow package with the 7 way plug on the back already? I don't. looks like this harness is pretty straight forward though. I found the big connector behind the bumper where this extra harness plugs in.
I think this is where the factory 7 way goes through the back of the bumper?
Existing 4 way wiring.
I guess my hitch isn't factory after all. lol
I think this is where the factory 7 way goes through the back of the bumper?
Existing 4 way wiring.
I guess my hitch isn't factory after all. lol
Last edited:
Fritz
Well-Known Member
https://www.etrailer.com/tv-install...rake-controller-2019-ford-ranger-red44fr.aspx
At 14:53 he shows where the wires are but earlier in the vid he shows how to take the panel off under the steering wheel.
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