A brake controller sends an electrical signal to the trailer's electromagnetic brakes when you press the truck's brake pedal. While newer Toyota Tundras come equipped with an integrated trailer brake controller (ITBC), older models or base trims require an aftermarket unit.. Free online viewing of Toyota Tundra (XK50; 2007-2013) Wiring Diagram PDF - full service manual in your browser.
Get the electrical wiring diagram for the 2008 Toyota Tundra and make sure your vehicle's wiring is correctly connected and functioning.. Anti-Lock Brakes wiring diagram for Toyota Tundra 2008. Component locations, pin connections, and complete circuit paths.