Just a quick rundown of the trailer wires/light testing box i built for our shop. We've been having a lot of trailers coming in for maintenance and repairs and this allows us to easily test all the functions of the trailer wires, test the tail/clearance lights, brake lights, turn signals, reverse lamps, electric brakes, and 12 volt constant/charging signal with a 7 pin plug. Usimg an adapter allows you to also test 6 pin round connectors along with 4 pin flat and 5 pin flat.
3 янв 2020