![Trailer Brake Controller wiring question - after plugging in brake controller into the harness the brake light lights up, kinda if like red wire (brake pedal signal) getting shorted with black (battery Trailer Brake Controller wiring question - after plugging in brake controller into the harness the brake light lights up, kinda if like red wire (brake pedal signal) getting shorted with black (battery](https://preview.redd.it/trailer-brake-controller-wiring-question-after-plugging-in-v0-m87bxa63844c1.jpg?width=640&crop=smart&auto=webp&s=d5abefe5691aac1ae998e3535610e76a8cb600a0)
Trailer Brake Controller wiring question - after plugging in brake controller into the harness the brake light lights up, kinda if like red wire (brake pedal signal) getting shorted with black (battery
![TEKONSHA | 3031-P | Trailer Brake Controller Custom Harness, Vehicle & Brake Control Ends, Compatible with Toyota Tacoma, Tundra TEKONSHA | 3031-P | Trailer Brake Controller Custom Harness, Vehicle & Brake Control Ends, Compatible with Toyota Tacoma, Tundra](https://www.tekonsha.com/product-assets/photos/500/3031-P.png)
TEKONSHA | 3031-P | Trailer Brake Controller Custom Harness, Vehicle & Brake Control Ends, Compatible with Toyota Tacoma, Tundra
![electrical - Does a brake controller need direct battery connection, or would a switched source work? - Motor Vehicle Maintenance & Repair Stack Exchange electrical - Does a brake controller need direct battery connection, or would a switched source work? - Motor Vehicle Maintenance & Repair Stack Exchange](https://i.stack.imgur.com/EhcV3.jpg)
electrical - Does a brake controller need direct battery connection, or would a switched source work? - Motor Vehicle Maintenance & Repair Stack Exchange
![REESE | 3024-P | Trailer Brake Controller Custom Harness, Vehicle & Brake Control Ends, Compatible with RAM 1500, 2500, 3500 REESE | 3024-P | Trailer Brake Controller Custom Harness, Vehicle & Brake Control Ends, Compatible with RAM 1500, 2500, 3500](https://www.reeseprod.com/product-assets/photos/500/3024-P_b.png)