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Towing Brakes

H3nightrod

Well-Known Member
Messages
413
Location
Illinois
I have been working on getting my trailers brake system working properly. I recall reading on a previous post about how our tow braking system was not connected to engage a electric bake setup from a towed trailer. Not sure if this is accurate so please correct me if I am wrong.

I am running a 2008 H3 Alpha. Does anyone know if there is a specific mod that needs to be done on my rig in order for my trailer to brake when my H3 does?

Thanks in advance for the help!!
 

f5moab

Mr. Beretta
Messages
2,000
Location
In hiding.....
You need to install a separate electric brake controller in order to activate the trailer brakes. Tekonsha Prodigy products are great. Does not take long to connect.
Under the dash, just to the right of the steering column are four cut wires.
Red wire is hot from fuse 83
Black is ground
Dark blue is the wire from the controller to the brakes on the trailers.
Light blue is from the brake switch.

Take note of the wiring from the controller. Sometimes it is different but it will be explained as to what is what.

When you apply the brakes, the electronic brake controller will adjust the voltage to the rear brakes based on deceleration determined by the electronic brake controller. Great deceleration, greater the voltage to the brake, greater the voltage to the trailer brakes, greater the braking.

The blue lit display box, hanging just below the E-brake release is a Prodigy 3 brake controller. Took about a half-hour to connect, and that includes attaching the bracket. The controller pops in and out when not needed.
_DSC0988.jpg~original
 
Last edited:

RamRod

Well-Known Member
Messages
3,914
Location
AB, Canada
Perfect timing! I'll be installing one in the next few weeks and was going to look up that wiring info! Guess not any more!


Sent from handheld smoke signal device
 
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