MICTUNING 7 Way Blade Trailer Connector Tester

MICTUNING Heavy Duty 7 Way Blade Trailer Light Circuit Tester When you're going to hitch a new trailer, it's necessary to make sure the lights are connected properly. MICTUNING 7pin connector testers are great for testing tail lights, turn signals, brake lights, ground connections and other electrical components on your vehicle and trailer. Rather than checking individual fuses, wiring and connectors, you simply plug this tester into your trailer lights receptacle and it will tell you which of your towing vehicle lights work or don't. When the socket is getting proper power, the tester's various LEDs will light up corresponding to each wire in the connector. Take this small lightweight 7 way trailer tester light circuit connector wherever you go and drive with confidence!!! LED Light Indicator: Features 6 LEDs display to show completed circuit for the running lights, left turn signal and right turn signal. It works by plugging in the connector socket of your vehicle end and seeing the lights display. The correct LED will be illuminated if the power and ground wiring of the tow vehicle is functioning correctly. Clear labeling of each of the indicator light allows you to quickly diagnose the problematic circuits. Function Codes: BU: Back up or reverse circuit center pole RT: Right turn/brake T/M: Taillights LT: Left turn/brake BK: Brake controller output 12V: 12-volt power feed.