Installation of Brake Controller and Hopkins Adapter # 37185 on 2011 Toyota Tundra

Question:

i have a 2011 Toyota Tundra v6, no Tow package. the wiring harness underneath the dash for the break controller is there. But the wire needed for the 4 Pole to 7 Pole Adapter by the bumper is not. How can I connect the output wire from the brake controller to the 4 Pole to 7 Pole Adapter. any help would be appreciated.

asked by: Martin F

Expert Reply:

On a 2011 Toyota Tundra without the tow package you will need to use the Hopkins Adapter, part # 37185, you have mentioned, to get a 7-Way connector at the rear of your vehicle.

If you just have a 4-Way connector on the rear of your vehicle you will need the brake controller and the Hopkins adapter # 37185. This adapter will plug into the existing 4-Flat on your vehicle and give you both a 7-Way and a 4-Flat connector on your vehicle. The adapter will have four remaining wires that will need to be hardwired to the vehicle.

The four remaining wires will need to be hardwired to the corresponding circuits on the vehicle. The white (ground) wire will need to be attached to the vehicle frame, the black (12 volt power) wire is connected to the vehicles battery with 10 gauge wire like the # 10-1-1, through a 40-amp circuit breaker # 9510, the blue (trailer brake) wire will be connected to the blue trailer brake feed wire on the brake controller, and the purple (auxiliary) wire is for reverse lights if you need that circuit. If any of these connections are not needed just wire tie them up out of the way for future use.

I am including a link to a video that shows this # 37185 adapter being installed on a 2010 Tundra.

expert reply by: Jeff D