How To Determine The Correct Brake Signal Wire When Installing A Brake Controller
Question:
Looking to find out which wire to tap onto for the brake controller signal wire. Do you have a wiring diagram or knowledge of which one. Or a photo?
asked by: Ryan
Expert Reply:
Unfortunately we do not have access to the correct brake signal wire you will need to use for a brake controller installation on a 2015 Subaru XV Crosstrek. However, I do have a way that will allow you find this fairly easy.
In order to find the correct brake signal wire behind the dash on your vehicle, you will need a circuit tester like part # PTW2993. Once acquired, you will need to depress the brake pedal and test each of the wires running to the brake pedal in order to determine which wire only illuminates when the pedal is pressed. This will be the correct brake signal wire you will need to hook the brake controller to.
I have attached a brake controller wiring troubleshooting article for your review that covers testing the stop light switch wires.
Product Page this Question was Asked From
Continue Researching
- Article: Trailer Wiring Diagrams
- Q&A: Trailer Running Lights Do Not Work but Brake Lights and Turn Signals Do Work
- Article: Brake Controller 7- and 4-Way Installation Kit (ETBC7)
- Article: Brake Controller Installation: Starting from Scratch
- Article: Testing Trailer Brake Magnets for Proper Function
- Article: Troubleshooting 4 and 5-Way Wiring Installations
- Article: Troubleshooting Brake Controller Installations
- Q&A: How to Make an Adapter to Go from Semi Truck 7-Way Round to RV Style 7-Way Blade on Trailer
- Q&A: Will The Curt Dinghy Wire Harness # C96JR Interfere With Activation Of A Blue Ox Patriot
- Q&A: Trailer Turn Signals Both Blink when Just Left Turn Signal is Activated
- Q&A: Trailer Lights Left Side Turn Signal and Brake Lights Not Working
- Q&A: Troubleshooting No Running Lights on Trailer but Turn Signals and Brake Lights Work
- Q&A: Troubleshooting Lack of 12V Power at 7-Way Trailer Connector on 2019 Ford F-150
- Article: Trailer Lighting Requirements