What Does It Mean to Splice Into the Cold Side of the Brake Pedal
Question:
please explain what this location is(cold side brake light switch). I can rationalize it either way.
asked by: Greg M
Expert Reply:
In regards to installing a brake controller such as the Tekonsha Prodigy P3 Trailer Brake Controller part # 90195, there is a red wire labeled as the stop light switch circuit. This circuit is used to let the brake controller know when the brake pedal in the vehicle is depressed that way it can then send power to the brake output circuit so the trailer's brakes can activate. This red stop light switch circuit will need to be spliced into the cold side of the brake pedal on the vehicle. The cold side of the brake pedal simply refers to the wire that only has power while the pedal is depressed. If your vehicle does not have a plug-in port under the dash for a brake controller then you will need to hardwire the circuits into the vehicle. Basically, for the stop light switch circuit you will want to find the plug that goes into the back of the brake pedal assembly and put a circuit tester like part # PTW2992 on each wire. The wire that only illuminates the test light with the pedal depressed is the cold side of the stop light switch circuit and the one you will need to attach the red wire on the brake controller to.
Please note that splicing into the cold side of the stop light switch circuit works on about 75% of vehicle's however, there are some where this signal cannot be obtained here due to a lack of voltage etc. so please confirm the year, make, and model of your vehicle that way I can give you a heads up of what is the proper procedure for your vehicle.
Products Referenced in This Question
Product Page this Question was Asked From
Tekonsha Prodigy P3 Trailer Brake Controller - 1 to 4 Axles - Proportional
- Trailer Brake Controller
- Proportional Controller
- Electric
- Electric over Hydraulic
- Automatic Leveling
- Under-Dash Box
- Dash Mount
- Up to 4 Axles
- LCD Display
- Up to 360 Degrees
- Tekonsha
more information >
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