Feature
●Tests 4-way flat connection for tail lights, brake lights and turn signals to note what is wrong with the cable on the car side and without the need of having a spotter
●Easy to read. Towing tester is going to be left LED is tail/brakes, middle LED is left turn signal and the right LED is right turn signal. To be extra helpful, this is with the LEDs light up.
●You need to turn on signals, apply brakes, etc. The device simply acts as a trailer light system that you know is functioning properly, allowing you to verify vehicle system is good
●A good tool when trouble shooting a none working light. If these lights come on as expected, then the issue is downstream of your vehicle wiring
●This is very handy. Can keep it in your glove compartment. Or carry way it to trailer like U-Haul trailer, truck like Ford GMC Dodge
●Helpful when you want to test your connection without having to hook up a trailer. It also helps eliminate your vehicle from the equation when your trailer lights arent working.
Description
4 Way Flat Trailer Circuit Tester Towing Brake Running Light Tester
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Easy to use
Simply plug it into the bumper connection or in-line between the tow vehicle and trailer, turn on the lights to be tested and check the LED lights on the tester
4-Way Flat Circuit Tester
RED WOLF 4 pin trailer light Inline circuit tester allows you to make quick checks on your trailer or truck wiring. This circuit tester is a must if you have wiring issues down the road and need to know which lights need to be checked or if all lights are working properly.