A major part of towing is regular maintenance, part of this is ensuring that your vehicles lights are working properly. Whether you have just installed a new wiring unit, or testing an old one this handy tester will be incredibly useful. Simply plug in the tester to your vehicle and start playing. Press on the break pedal, turn signal, or open your door and the testers various LEDs should turn on. If a light does not turn on when you are doing the designated motion, then you have quickly narrowed down the issue. Have some extra peace of mind, with the all new 7 pin plug socket trailer light tester, where reliability meets exceptional performance.
