Check your vehicles plug configuration. Eliminate hours of frustration by using our trailer testing equipment and quickly identify problems in the wiring of the trailer.
Curt 55336 Vehicle Side Custom 4 Pin Trailer Wiring Harness For Select Honda Acura Isuzu Vehicles
Testing 4 pin trailer wiring. Use this 4 pin trailer wiring diagram to properly wire your 4 wire trailer plug. On a four prong plug one prong connects to the right turn signal one to the left and one to the tail lights. 6 way connectors include the basic connection of. I have a good ground. Connecting the wrong color wires will result in mismatched taillight functions and confusion on the road. Youve connected the trailer to the vehicle but the turn signals and brake lights dont work.
Do not plug a trailer into the 4 way plug until function has been verified with a circuit tester. All you have to do is link up the white wire to the negative and the colored wires to the positive. The basics on a speed square duration. Two types of a trailer wiring tester. Classic work recommended for you. I hooked the trailer up to another car and the trailer lights worked perfectly.
You dont know if the wiring is bad or you have bad bulbs. Determine if the issue is with the tow vehicle wiring or trailer wiring. Test your right left tail and brake light wiring all with one handy light tester. Disconnect the trailer from the vehicle and run a test to determine if the trailer lights function properly. But none of the other wires worked. Following the standard method for wiring a trailer connector is vital to the safety of your vehicle while towing.
Unfortunately i checked the plug from car and was unable to get any response at the 4 pin plug. If all the lights appear dim or you have no lights at all check the trailer light harness at the tow vehicle. Behind the converter box. Male and female brass connectors. One way to troubleshoot the voltage on the connector plug is to use a circuit 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.
Utility trailer 03 4 pin trailer wiring and diagram duration. If functions are correct at the 4 way plug proceed to testing on the trailer. Have a helper stand back to see if the running lights stoplights and blinkers are working properly. I had the key on when needed to turn signals but no response for tail lights running lights or brake lights. Fits four way flat plugs. 6 way trailer connectors 6 way trailer connectors are often used on gooseneck trailers but can be used for other types such as utility boat trailers and 5th wheels.
Wire the vehicle side wiring harness to a standalone battery. Hook up your trailer and connect the trailer light harness. If any function does not have a correct power reading at the 4 way plug test the wiring going into the converter box from the vehicle side. Tests right left tail and brake light wiring.
Gallery of Testing 4 Pin Trailer Wiring
