How To Find Cold Side Of Stop Light Switch On Vehicle For Brake Controller Installation
Question:
Hi, where can I find the the cold side of brake switch to attach to the brake controller, what color is the wire and where is it located. Thanks
asked by: Alessandro
Expert Reply:
Normally you can find the brake light switch under the dashboard at the top of the brake pedal. There could be a number of wires attached to the switch so you can use a tester like part # PTW2993 to test the wires. Since the auto manufacturers can use different color wires it is always best to use a tester and check the wires for function and not color.
You would need to find the wire that only shows power when the brake pedal is pressed. That would be the wore that gets attached to the red wire from the brake controller.
If you want to let me know the year, make, and model of your vehicle I may be able to provide more information for you when installing a brake controller.
Aaron
5/10/2020
I have a reese brake controller, Brake-EVN proportional. I don't know where my cold side connection is on my 99 dodge ram 1500. To connect the red wire to the stop light switch.
Products Referenced in This Question
Product Page this Question was Asked From
Pollak Heavy-Duty, 7-Pole, Round Pin Trailer Wiring Socket - Vehicle End
- Trailer Wiring
- Trailer Connectors
- Vehicle End Connector
- Plug Only
- 7 Round - Round
- Pollak
more information >
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Ed
5/14/2024
Trying to install a Roadmaster brake light relay in 2018 F150. I have two of four wires at brake light switch that give 12v when brake is depressed. Purple/white and purple/pink