Principles of Operation

PRINCIPLES OF OPERATION

The trailer parking and reversing lamps share the vehicle lighting outputs controlled by the smart junction box (SJB). The SJB uses existing inputs to determine if voltage needs to be supplied to the individual trailer stop/turn lamps.

The vehicle is supplied with wiring to support an aftermarket trailer brake control module.

The trailer tow battery charging is controlled by a relay. When the ignition switch is in the RUN or ACC position, the trailer tow battery charge relay is energized, which routes voltage to the trailer tow connector.