2022 Ram 1500 Fuse Box Diagram

Quick answer

The 2022 Ram 1500 has two primary fuse box locations:

• Under-Hood Power Distribution Center: Located in the engine bay, near the battery on the driver's side.
• Interior Fuse Box: Located under the driver's side of the dashboard, near the kick panel.

Under-Hood Power Distribution Center

This is the main fuse box, housing high-amperage fuses and relays that control the engine, powertrain, lighting, and other critical vehicle systems. To access it, open the hood and locate the black plastic box on the driver's side. Release the clips or tabs on the cover to expose the fuses and relays.

Note: The fuse numbers and layout can vary slightly based on your truck's trim level and options (e.g., Laramie, Limited, Tradesman, TRX, eTorque). Always confirm the fuse layout with the diagram printed on the inside of your fuse box cover.

Fuse & Relay Table (Under-Hood)

Interior Fuse Box

This fuse panel handles most of the fuses for cabin accessories, safety systems, and interior functions. It's located under the dashboard on the driver's side, to the left of the steering column. You may need to remove a trim panel for full access.

Fuse & Relay Table (Interior)

How to test a fuse

A fuse is a simple circuit protection device. If a component suddenly stops working, the fuse is the first thing you should check.

1. Turn the vehicle off.
2. Locate the suspect fuse using the tables above and the diagram on your fuse box lid.
3. Using a fuse puller (often included in the fuse box) or a pair of needle-nose pliers, carefully pull the fuse straight out of its slot.
4. Hold the fuse up to the light. Inside the plastic body, you will see a thin metal strip. If this strip is broken or melted, the fuse is blown and needs to be replaced.
5. If you can't see clearly, you can use a multimeter set to continuity mode. Touch the probes to each of the fuse's metal prongs. If the meter beeps, the fuse is good. If it remains silent, the fuse is blown.
6. When replacing a fuse, always use a new fuse with the exact same amperage rating. Using a higher-rated fuse can cause a fire, while a lower-rated one will blow prematurely.

Common blown fuses on this vehicle

• Fuse F15 (20A Yellow - Cigar Lighter / 12V Outlet): This is one of the most common fuses to blow. It's often caused by a faulty phone charger, a coin falling into the outlet, or plugging in a device that draws too much power. Before replacing the fuse, inspect the power outlet for any foreign objects.

• Fuse F21 (25A Natural - Trailer Tow Brake Controller): If you frequently tow, issues with your trailer's wiring are the number one cause for this fuse to blow. A short in the trailer's brake or lighting system will almost instantly blow this fuse. Check the trailer-side connector for corrosion or damaged wires first.

• Fuse F31 (15A Blue - Radio/Infotainment): If your Uconnect screen suddenly goes black, this fuse is the first place to look. Sometimes this can happen for no apparent reason. If replacing the fuse doesn't solve the issue, or if it blows repeatedly, it could indicate a deeper problem with the head unit or vehicle wiring that requires professional diagnosis.

If a fuse blows immediately after you replace it, you have a short circuit in that component or its wiring. Do not keep installing new fuses. The vehicle needs to be inspected by a qualified technician to find and fix the underlying fault.

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