A few minutes of soldering and some shrink wrap and no more blinking lights.

Testing 4 pin trailer connector.

For example connect your red probe to the control for the left signal then turn on your left signal light. 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. When you test the 4 way on the curt t connector wiring harness part 56016 at the rear of your vehicle it should show now power on all 3 pins with the lights off. Products referenced in this question. I have included a video on trailer connector testing for you to review. How to test 7 way trailer rv electrical plugin this video i show how to test a 7 way trailer plug wiring harness for towing a travel trailer or rv by using a.

This is on a 2005 f 150. If you apply the brakes you will have about 12 volts at the green right turn and brake and yellow left turn and brake pin with the head lights off. You will need a helper to operate the controls of the vehicle while you check the voltages with a circuit tester. Fits four way flat plugs. One is the ground. Free shipping on orders over 25 shipped by amazon.

You ve connected the trailer to the vehicle but the turn signals and brake lights don t work. If you turn on the right turn signal you will have around 12 volts. Test your right left tail and brake light wiring all with one handy light tester. Custom fit vehicle wiring. 4 4 out of 5 stars 102. Male and female brass connectors.

5 coupon applied at checkout save 5 with coupon. Online led store 4 way flat trailer wiring tester nickel plated copper terminals male female continuity test 4 pin trailer light wire circuit tester 4 6 out of 5 stars 354 6 99 6. The correct wiring for the 2000 mercury mountaineer is the t one wiring harness 118345. Ram pro rv trailer plug light circuit tester adapter 7 way blade 4 pin trailer wiring tester trailer light wire. One way to troubleshoot the voltage on the connector plug is to use a circuit tester. On a four prong plug one prong connects to the right turn signal one to the left and one to the tail lights.

I could have bought a 7 pin to 4 pin adapter but i alre. To test your trailer plugs turn your multimeter to volt dc settings then connect the black probe to the negative terminal and your other multimeter probe to one of the positive pins and turn on the light that is controlled by that pin. In stock on november 24 2020. You don t know if the wiring is bad or you have bad bulbs. If you have the vehicle head lights on you should have around 12 volts at the brown tail lights pin only.