How Does Prodigy RF Electronic Brake Controller Know When To Send Power To Trailer Brake
Updated 03/09/2011 | Published 03/08/2011
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Question:
I have a Chevy Trailblazer and am just finding out that GM leaves the 12V disconnected under the hood fuse panel and I need to connect it. My question is this: How does the controller know when to apply brakes? How is it getting signal to the remote controller when to apply brakes? Is it getting voltage from the stop lights when brakes are applied?
asked by: Mike
Expert Reply:
If you have a newer Trailblazer with the tow package there should be a total of 2 wires that you will need to connect; both wires should be red/black with eyelets on the end. One wire is located between the fuse box and driver side fender, the other should be located under the brake master cylinder. On the driver side, remove the fuse box cover, there will be 2 threaded studs that are different sizes, the wires which have different sized eyelets will connect to the corresponding studs using M6 Nut, part # 185916, and M8 Nut, part # 185917.
The Tekonsha Prodigy RF Brake Controller, part # TK94FR, knows when to supply power to the brakes because of an internal sensor. The Prodigy RF Brake Controller has an accelerometer that senses deceleration of your vehicle and sends power to the trailer brakes in proportion to the deceleration of vehicle.
The accelerometer is located in the Power Module that mounts to the trailer frame. The remote control does not actually send the signal to apply the brakes. The remote control is used to adjust the settings which is sent via radio frequencies to the Power Module on the trailer. You can manually activate the brakes with the remote control if you use the manual override switch.
The Prodigy is getting voltage or signal from the stop light switch wire that is connected to your 7-way which receives signal when you apply the brakes to your vehicle.
I have linked instructions for the Tekonsha Prodigy RF Brake Controller, part # TK94FR.
