Wiring Diagram — Bradford Built Flatbed
If your Bradford Built bed has reverse lights (yellow/purple), connect them to your truck’s backup light circuit. On most trucks, this wire is only live when the transmission is in Reverse. Note: Some trucks send a data signal instead—you may need a converter module.
Some common issues with Bradford Built flatbeds and their electrical systems include: Bradford Built Flatbed Wiring Diagram
Most Bradford Built beds utilize the for their 7-way trailer plug. This configuration is the industry standard for major auto manufacturers. Pin Position Wire Color Yellow Reverse / Backup Lights Black +12V Battery Power (Auxiliary) Brown Right Turn Signal & Brake Light White Ground (-) Blue Electric Trailer Brakes Red Left Turn Signal & Brake Light Green Taillights / Running Lights If your Bradford Built bed has reverse lights
The key challenge is that Ford, Ram, and GM all use different wire colors. A must be combined with a truck-specific wiring chart . Below is a quick reference for popular trucks. Some common issues with Bradford Built flatbeds and
If reverse lights do not activate, ensure the center pin (Yellow or Purple) is correctly spliced into the vehicle’s backup circuit, as some factory harnesses do not automatically include this in the tail light bundle.
To effectively use the Bradford Built flatbed wiring diagram, follow these steps: