Test your tow vehicle’s wiring with this LED trailer light tester
Plug this easy-to-use trailer light tester into the 4-flat connector of your tow vehicle and the LEDs light up to confirm the wiring connections. Test your right, left, tail and brake light wiring all with one handy light tester.
We guarantee this product to be free from defects in materials and workmanship 90 days from the date of purchase. Limitations apply.