Turn Signals Not Working on Trailer When Connected to 1994 Dodge Dakota With 4-Way Connector  

Question:

Expert Reply:

You will first want to check the fuses on your 1994 Dodge Dakota since it is just the turn signals that are not working. Some vehicles have fuses for operating the turn signals when towing a trailer. You will want to check if they are installed and working properly.

If the fuses are all good then you will need to check the trailer connector on the vehicle and trailer for a ground connection issue, or a short on the tail light circuit on the trailer. Open them up and make sure there is no white or green corrosion causing an issue inside the connectors. If so clean them out or replace the connectors with new ones.

If the problem is not found in the connectors, you will need to follow the trailer wiring and check all of the grounds for all of the lights and the trailer connector. Make sure each light is grounded to the trailer frame and that the connection to the trailer frame is free of rust, paint and corrosion. Other lights like running lights down the side of the trailer may have a separate ground wire or they may be grounded through the mounting hardware so you will need to check each of these lights.

While you are checking all of the ground connections, it is a good idea to look at all of the wiring and check for pinched cut or frayed wires that could be causing your issue, or could cause an issue in the future.

I am including links to a troubleshooting video that should help you with locating the problem on your trailer.

expert reply by: Jeff D

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