2019 F350 Tail Light Wiring Diagram: Everything You Need to Know

Are you in the process of replacing your 2019 F350 tail light? Do you need a wiring diagram to make the installation process go smoothly? Look no further, as in this article, we’ll provide you with a step-by-step guide on how to rewire your F350’s tail light.

What is a Tail Light Wiring Diagram?

A tail light wiring diagram is a schematic representation of the electrical connections within the tail light assembly. It shows the different wires and their respective functions, including power supply, ground connections, and signal connections. By referring to the wiring diagram, you can ensure that you connect the wires correctly when replacing or repairing your tail light.

Why Do You Need a Tail Light Wiring Diagram?

Replacing or repairing a tail light without a wiring diagram can be challenging, especially if you’re not familiar with electrical wiring. A wiring diagram will help you identify the wires that you need to connect and how to connect them properly. It will save you time and minimize the risk of damaging your vehicle’s electrical system.

Getting Started: What You’ll Need

Before you begin, make sure that you have the following tools and materials:

Tools Materials
Screwdriver Replacement tail light assembly
Pliers New bulbs (if needed)
Wire strippers Electrical tape
Multimeter

You can purchase a replacement tail light assembly and bulbs from your local auto parts store or online. Make sure that you get the correct part for your F350’s model and year.

Step-by-Step Guide: Rewiring Your F350’s Tail Light

Step 1: Disconnect the Battery

Before you start working on your F350’s electrical system, you must disconnect the battery to minimize the risk of electric shock or short circuit. Locate the battery under the hood and use a wrench to loosen the negative terminal. Remove the terminal and set it aside.

Step 2: Remove the Old Tail Light Assembly

Using a screwdriver or pliers, remove the screws or bolts that hold the old tail light assembly in place. Gently pull the assembly away from the vehicle to expose the wires and connectors. If the assembly is stuck, use a flathead screwdriver to pry it away.

Step 3: Identify the Wires

Refer to your tail light wiring diagram to identify the wires that need to be connected. The wires will be color-coded, and their functions will be labeled. The most common wire colors are as follows:

Wire Color Function
Black Ground
Red Brake light/turn signal
White Reverse light
Yellow Running light

Step 4: Test the Wires

Use a multimeter to test the wires and ensure that they have the correct voltage and connectivity. Set the multimeter to the continuity or resistance mode and touch the probes to the two ends of each wire. If the multimeter beeps or shows a low resistance reading, the wire is connected.

If a wire has no voltage or connectivity, you may need to troubleshoot the electrical system to identify the issue.

Step 5: Connect the Wires

Using wire strippers, remove about 1/4 inch of insulation from each wire’s tip. Twist the bare wire together and use pliers to squeeze them tightly. Cover the connection with electrical tape to prevent it from shorting out. Repeat this process for each wire.

Step 6: Test the Tail Light Assembly

Reconnect the battery and turn on the vehicle’s headlights to test the new tail light assembly. Check each light’s function, including the brake light, turn signal, running light, and reverse light. If any of the lights do not work, examine the connections and ensure that you have connected the wires correctly.

FAQ

Q: How do I know if my F350’s tail light is broken?

A: Some signs that your tail light is broken include a dim or flickering light, a cracked lens, or a burnt-out bulb. You may also see a warning light on your dashboard indicating that there is a problem with the tail light.

Q: Can I replace my F350’s tail light myself?

A: Yes, you can replace your F350’s tail light yourself if you have the necessary tools and knowledge of electrical wiring. You’ll need a replacement tail light assembly and bulbs, as well as screwdrivers, pliers, wire strippers, and electrical tape.

Q: Is it safe to work on my F350’s electrical system?

A: Working on your F350’s electrical system can be hazardous if you don’t take the proper precautions. Always disconnect the battery before working on any electrical components and wear rubber gloves and safety goggles to protect yourself from electric shocks and short circuits.

Q: Where can I find a wiring diagram for my F350’s tail light?

A: You can find a wiring diagram for your F350’s tail light in the vehicle’s owner’s manual or online. Many auto parts stores and online retailers also sell repair manuals that include wiring diagrams.

Q: How long does it take to replace a tail light on an F350?

A: The amount of time it takes to replace a tail light on an F350 depends on your level of experience and the complexity of the repair. It can take anywhere from 30 minutes to an hour to replace a tail light assembly.

Q: Can I use aftermarket tail lights on my F350?

A: Yes, you can use aftermarket tail lights on your F350 as long as they are designed for your vehicle’s make and model. Make sure that the aftermarket tail light assembly meets the same safety standards as the original equipment manufacturer (OEM) part.

Conclusion

Replacing or repairing your 2019 F350’s tail light can be a straightforward process if you have the right tools and knowledge. By using a wiring diagram, you can ensure that you connect the wires correctly and minimize the risk of damaging your vehicle’s electrical system. Remember to always take the necessary safety precautions when working on your vehicle’s electrical components.