how to wire a brake controller

Asked by frankred Jun 13, 2013 at 08:32 PM about the 1993 Chevrolet Blazer Sport 2-Door 4WD

Question type: Maintenance & Repair

i have every thing wired but one , its the one that goes from the controller to the brake
switch, on this truck it has 6 wires , my question is which wire do i hook up to?

31,235

yetilikesbeer answered 11 years ago

I just use a mutimeter or test light. You'll want one of the larger wires. With the key on find the power wire. Then test the next biggest wires untill one is showing 12 volts (light on) while the pedal is pushed and off when it's not. Tap into it and your good to go. I usually strip the jacket, wrap the wire around the brake wire without cutting it then solder them together and tape. Ensure you protect the wires from shorting. Also make sure you used a circuit breaker on the power supply and not a fuse.

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