Fixing Ram 2500 Trailer Light Fuse: Locate, Inspect & Replace

Ram 2500 is a heavy-duty truck that is designed for tough tasks, and it is often used to haul trailers. However, if the trailer light fuse in your Ram 2500 blows, it can cause problems, such as the trailer lights not working or the turn signals not functioning correctly. 

This can be frustrating, but fortunately, it is a relatively simple problem to fix. In this blog post, we will discuss how to locate, inspect, and replace the trailer light fuse in your Ram 2500.

How to Locate the Fuse In Ram 2500

The first step in troubleshooting a blown trailer light fuse is to locate it. The fuse box in your Ram 2500 is located under the hood, on the driver’s side. Open the hood and look for a black plastic box with a removable lid. There should be a diagram on the underside of the lid that indicates which fuse is for the trailer lights.

If you are having trouble finding the fuse box or the diagram, consult your Ram 2500 owner’s manual for guidance. It should contain detailed instructions on locating the fuse box and identifying the trailer light fuse.

How to Inspect the Fuse

Once you have located the fuse box and the trailer light fuse, the next step is to inspect the fuse. You can do this by removing the fuse from the box and holding it up to a light source. If the metal strip inside the fuse is broken or melted, the fuse is blown and needs to be replaced.

If you don’t have a light source to check the fuse, you can use a multimeter. Set the multimeter to test for continuity and touch the leads to each end of the fuse. If the multimeter beeps, the fuse is good. If it doesn’t beep, the fuse is blown.

How to Replace the Fuse

If you have determined that the trailer light fuse is blown, the next step is to replace it. The fuse box in your Ram 2500 should contain spare fuses of the same amperage as the blown fuse. You can use a fuse puller or a pair of pliers to remove the blown fuse from the box. Insert the new fuse into the slot and make sure it is secure.

How to Check Fuse with Multimeter

Additional Troubleshooting Tips

If you have replaced the trailer light fuse and the trailer lights still don’t work, there may be a problem with the wiring or the connectors. Check the wiring for any signs of damage, such as frayed wires or loose connections. If you find any issues, you may need to repair or replace the wiring.

If the wiring appears to be in good condition, you can use a multimeter to test the connections for continuity. If there is no continuity, you may need to replace the connector or the entire wiring harness.

Trailer lights fuse location on a dodge cummins

Ram 1500 Trailer Light Fuse

If you’re having trouble with your Ram 1500 trailer lights, there’s a good chance it’s due to a blown fuse. In this blog post, we’ll show you how to check the trailer light fuse and replace it if necessary. The trailer light fuse on a Ram 1500 is located in the engine compartment, on the left side of the vehicle.

It’s a black plastic box with a red lid, and it has “TRAILER LIGHTS” written on it. Inside the box, there are two rows of fuses. The top row is labeled “FUSE,” and the bottom row is labeled “RELAY.”

The fuse for the trailer lights is in the top row, fourth from the left. To check whether or not the fuse is blown, remove it from its socket and hold it up to a light source (such as a flashlight). If you can see through the metal strip in the center of the fuse, then it’s blown and needs to be replaced.

Once you’ve determined that you need a new fuse, head over to your local auto parts store or dealership and pick one up. Be sure to get one that matches the amperage rating of the original fuse – typically 15 amps or 20 amps. Then simply insert the new fuse into its socket and you should be good to go!

Dodge Ram Trailer Fuse Location

If you’re having trouble finding the right fuse for your Dodge Ram trailer, look no further! This blog post will provide detailed instructions on where to find the trailer fuse location. First, open up the hood of your Dodge Ram and locate the fuse box.

The fuse box is usually located near the battery. Once you’ve found the fuse box, take a look at the diagram on the lid to identify which fuse controls the trailer lights. Next, use a test light or voltmeter to test that the fuse is receiving power.

If it’s not, then replace it with a new one.

Ram 3500 Trailer Lights Not Working

If you’re having trouble with your Ram 3500 trailer lights not working, there are a few things you can check. First, make sure that the fuse for the trailer lights is not blown. Next, check the bulbs to see if they need to be replaced.

Finally, check the wiring to see if it’s damaged or needs to be replaced.

2016 Ram 2500 Trailer Light Fuse

If you’re having trouble with your trailer lights, there’s a good chance it’s because of a blown fuse. The 2016 Ram 2500 is no exception. In fact, there are two fuse boxes on this truck – one under the hood and one in the cab.

The fuse for the trailer lights is located in the cab box. It’s labeled “Trailer Tow Lights” and is number 28 in the diagram. If this fuse has blown, simply replace it with a new one of the same amperage (20 amps).

If your problem persists after replacing the fuse, it could be due to a faulty wiring harness or connector. These should be checked by a qualified technician to ensure that they’re in good working order.

Ram 2500 Trailer Light Fuse



Troubleshooting a blown trailer light fuse in your Ram 2500 is a straightforward process. By following the steps outlined in this blog post, you can quickly locate, inspect, and replace the fuse, restoring functionality to your trailer lights. If you encounter any issues during the troubleshooting process, don’t hesitate to seek the assistance of a qualified mechanic or electrician.

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  • Zayn

    John Zayn Smith is a renowned truck enthusiast, automotive industry expert, and author. Beginning his career as a mechanic, Zayn's curiosity led him to explore all facets of the trucking world, sharing his insights through in-depth articles on His knowledge spans truck mechanics, trends, and aftermarket modifications, making him a trusted resource for both professionals and hobbyists. Outside writing and mechanics, Zayn enjoys off-roading, truck shows, and family time. Follow his work for the latest in truck-related news and tips.

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