Help installing electronic brake controller

bcmichael

New member
So I performed a couple of searches and now know where everybody has physically installed their brake controllers, my question is on wiring.

I pulled the OEM brake wire harness out of the glove compartment (knew that would come in handy one day) and cracked open the packaging on the brake controller. The OEM harness has 5 wires, the brake controller has 4. Doh!

I've mapped out the following wires so far (left hand column is Toyota wiring harness label, right hand column is the label on the brake controller wire):

Toyota OEM Harness wire description --> Brake controller wire description

Black, Fused Trailer Brake Controller Battery Feed --> Black, positive terminal on battery
White/Black, Trailer Ground --> White, ground/negative terminal on battery
Green/Yellow, Vehicle stop lamp switch to brake controller (input) --> Red, cold side of stop lamp switch
Yellow, Trailer electric brake feed from brake controller (output) --> Blue, trailer electric brakes


That leaves the 5th wire on the OEM harness which Toyota labels:
Green, Headlamp switch to vehicle tail lamps

So is the green wire on the Toyota harness not needed in this application?

Pertinent Information:
2007 4Runner SR5 V8
Brake Controller: Hopkins Agility proportional brake controller (yes, I know this isn't one of the controllers that is recommended on the forum, but it's available locally and will have to do until I can upgrade).

Thanks in advance for your help.

Michael
 
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So I wired my Tekonsha controller as per the wiring instructions listed above. The brake pedal doesn't activate the trailer brakes nor does the controller LEF turn orange/red as it should when the trailer brakes are activated. When I move the manual slider on the front of the controller the trailer brakes activate and the LED turns orange so it is communicating with the trailer properly just not when the brake pedal is pushed. Any help? Please???
 
Does the LED on the brake controller turn green when the trailer is plugged in?If not, the brake controller is not seeing your trailer. Therefore the controller will not work by itself. If you have a green light when the trailer is plugged in, but the brake pedal is not engaging the controller, first check your fuses, then you may have to get a test light or meter and probe the elec. brake controller plug in.
 

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