Ok i have been through all the threads and have not seen this question addressed. Basically it is another 12v circuit typically used for a reverse light reverse lockout for trailer brakes.
Wiring Reverse Lights 2nd Gen How To Tacoma World
Reverse light wiring diagram. Archive reverse light wiring e90e91e92e93 2006 2013 bimmerfest bmw forums bmw model discussions 3 series 4 series e90e91e92e93 2006 2013 reverse light wiring. If you need to find the right reverse lead wire to trigger your rear view backup camera install this tutorial is for you. Specific schematic information can be obtained by serial number is available to our dealers on line via partspro and ez wiring. 7 way connectors allow for all functions provided by 6 way connectors three basic lighting functions electric brakes and additional power supply with the seventh wire for backup lights. Can you obtain wiring diagrams for specific options for serial numbers and any information on dealer optionally installed features. The trailer wiring diagram shows this wire going to all the lights and brakes.
Some trailer builders just connect this wire to the frame then connect the ground from all the other lights and accessories to the frame as well. Use page 1b 4 of this chapter to locate the module. Also it must connect with things if included that use the aux power and back up lights too.
Gallery of Reverse Light Wiring Diagram
