By law trailer lighting must be connected into the tow vehicles wiring system to provide trailer running lights turn signals and brake lights. Test scan and specialty tools electrical testing scanning and specialty tools circuit tester reese towpower 4 way flat trailer wiring circuit tester.
Trailer Connector Pinout Diagrams 4 6 Amp 7 Pin Connectors
How to test 4 flat trailer wiring. What youre going to need to do this is a circuit tester and a buddy in the drivers seat to operate the. The most common wire thickness for a trailer is 16 gauge but i bought thicker wiring for added durability. On a four prong plug one prong connects to the right turn signal one to the left and one to the tail lights. The procedure for wiring trailer lights will be very similar or the same on other vehicles. If the trailer lights function with such a setup it is clear the issue is. Depending on the size of your trailer and the number of lights you might want to check on the internet for the recommended gauge for your specific trailer.
You dont know if the wiring is bad or you have bad bulbs. Tow vehicle has amber turn signals separate. Use a simple 4 way flat connector to power your 2 light trailer lights or use a custom vehicle specific trailer wiring harness. Male and female brass connectors. 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. Simply test the wires to determine which wire will match the connector set.
Today im going to show you how to test the functionality of a trailer four way connectors. Trailer electrical connectors come in a variety of shapes and sizes. Test your right left tail and brake light wiring all with one handy light tester. Fits four way flat plugs. Reese towpower 4 way flat trailer wiring circuit tester. Wire the vehicle side wiring harness to a standalone battery.
Disconnect the trailer from the vehicle and run a test to determine if the trailer lights function properly. Tests right left tail and brake light wiring. All you have to do is link up the white wire to the negative and the colored wires to the positive. Send to store list. 362960 85484 5 99. The basic purpose remains the same whether your truck and trailer is using a 4 way 5 way 6 way or 7 way connector.
Has separate bulbs for lighting stop and turn signals both red. One way to troubleshoot the voltage on the connector plug is to use a circuit tester. Buy a 4 pin wiring kit with wires at least twenty feet in length so its long enough for your trailer. Youve connected the trailer to the vehicle but the turn signals and brake lights dont work.
Gallery of How To Test 4 Flat Trailer Wiring
