Need fuse diagram for 2004 peterbilt 379 - Cars & Trucks (2024)

FAQs

Where can I find fuse diagram for my car? ›

To locate the fuse specification chart for your vehicle or to learn how to change a fuse, refer to the "Fuses" section of your Owner's Manual.

Fuse boxes are typically located in your home's basem*nt, garage, or utility room. If you have an older home, you may have a fuse box instead of a circuit breaker. Fuse boxes are not as common as they once were, but they can still be found in some homes.

Most vehicles have two fuse boxes, with one under the hood and the other in the cabin. You can usually find the other fuse box in the dashboard on the driver's side, but some manufacturers also place it below the glove box.

Generally the manufacturer's brand name and the actual part number should be enough to identify the right fuse.

There are two fuse boxes, one located near the engine or under the hood and the other is located near the driver seat. The car fuse box under the hood protects engine components including engine control unit (ECU), cooling fan, ABS motor and battery.

The first thing to do is find your main fuse box (these days called a consumer unit), which will be in the same place as your electricity meter. They're often in the main hallway of a house, in a purpose-built cupboard.

Open the fuse box door. Inspect each fuse using a flashlight to find the one that is burned or melted (the working fuses will have a clear glass casing but the blown one will look cloudy or blackened).

Located under the dashboard (behind the instrument panel). Fuse locations are shown on the label on the side panel (under the steering column).

Check your garage for the circuit breaker or fuse box. It might also be in a storage room, utility room, the basem*nt, or a hallway. If you can't find your box in one of these areas, look again or see if you can spot where the power connects to your house from outside. Check for your box in the surrounding areas.

The secondary under-hood fuse box is next to the battery. To open it, push the tabs as shown. If something electrical in your vehicle stops working, check for a blown fuse first. Determine from the chart on pages and , or the diagram on the fuse box lid, which fuse or fuses control that device.

Where is the engine room fuse box? ›

Engine fuse boxes are typically situated near the battery. In this vehicle, the battery is on the driver's side, and there is a fuse box right above it with a black plastic cover to protect the fuses. On the passenger side, there is also a battery, and the fuse box is located nearby.

The fuse wire is always connected in the live wire of the circuit because if the fuse is put in the neutral wire, then due to excessive flow of current when the fuse burns, current stops flowing in the circuit, but the appliance remains connected to the high potential point of the supply through the live wire.

To remove the fuse box lid, put your finger in the notch on the lid, pull it toward you, and take it out of its hinges. The fuses are located in five fuse boxes. The interior fuse boxes are located under the dashboard on the driver's and passenger's side.

The fuses under the hood help protect electrical components such as electric motor and brake functions. To access the fuses under the hood, a number of panels around the storage compartment must be removed.

In most cases, the main fuse box can be located under the dashboard on the driver's side. This is usually where all of the fuses that control major electrical components are stored. There may also be additional fuse boxes located in other areas such as under the hood or in the trunk.

Fuses are usually shown in schematics with a symbol that looks like a sideways letter “S”.

Locating your fuse box

You must know where your fuse box is located, in case you need to turn the power off in the event of an emergency. Fuse boxes are commonly found in utility rooms, porches or under-the-stairs cupboards. You may also have one in your hallway or garage.