How to Obtain Brake Light Signal for Prodigy P2 Brake Controller 90885 on a 2010 Chevrolet Colorado  

Question:

Expert Reply:

My technical contact at Tekonsha does not have wiring information for your specific vehicle, the 2010 Chevrolet Colorado. However, it may be possible to obtain a brake light signal to feed to the Prodigy by tapping into the stop light fuse in the power distribution block in the engine compartment.

On page 6-114 of your Colorado owner's manual, you should see a diagram of the power distribution block. There is a fuse labeled Stop. In the top of this fuse there should be holes where a probe-style circuit tester (such as # PTW2993) can be applied to read the voltage passing through the fuse. If this fuse carries a signal only when the brake pedal is pressed, then you can splice the red input signal wire to the controller into this fuse location using a fuse tap kit.

You can use an item such as Firestone Fuse Circuit Tap Kit # F2526. This plugs into the location for the stop fuse and provides a pigtail lead that can splice to the red wire to the Prodigy. I have linked a video (for another product and vehicle) that shows how to use the tester and fuse tap; please refer to the video from the 3:30 point.

If the stop fuse does not provide a signal only when the brake pedal is pressed an alternative method to wire the controller is to tap into the brake light wiring at one of the taillight assemblies. You will need to test the wires at the taillight to find the one that carries a signal only when the brake pedal is pressed. You can then use a length of 16-gauge wire (part # 16-1-1 or similar) to connect the Prodigy red input wire to this brake circuit wire to deliver the braking signal to the Prodigy.

expert reply by: Adam R

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