2019 Nissan Nv200 Fuse Box Diagram

So, you're diving into the electrical heart of your 2019 Nissan NV200. Smart move! Understanding your fuse box diagram is crucial for everything from basic troubleshooting to adding aftermarket accessories. Whether you're dealing with a blown headlight, a faulty radio, or planning some custom modifications, this guide will arm you with the knowledge you need to navigate the NV200's fuse system.

Purpose of the Fuse Box Diagram

Why bother with a fuse box diagram? Simple: It's your roadmap to the electrical system. It allows you to quickly identify the correct fuse for a specific circuit. This is invaluable for:

Troubleshooting Electrical Issues: Pinpointing a blown fuse is the first step in diagnosing electrical problems. A diagram saves you time and prevents you from pulling the wrong fuse.
Replacing Fuses: Knowing the correct amperage rating is vital. The diagram provides this information, ensuring you use the right replacement and prevent potential damage.
Installing Aftermarket Accessories: Planning to install a new radio, auxiliary lights, or a dashcam? You'll need to tap into the vehicle's power. The fuse box diagram helps you find suitable circuits and avoid overloading existing ones.
General Understanding: Familiarizing yourself with the electrical layout enhances your overall understanding of your vehicle's systems.

Key Specs and Main Parts of the 2019 NV200 Fuse System

The 2019 Nissan NV200, like most modern vehicles, has multiple fuse boxes. The primary one is typically located under the dash on the driver's side. You might also find another fuse box in the engine compartment, usually near the battery. Let's break down the key components:

Main Fuse Box(es): These house the majority of the fuses and relays that protect various circuits. The under-dash fuse box usually handles interior components, while the engine compartment fuse box handles engine-related systems.
Fuses: These are sacrificial devices designed to protect circuits from overcurrent. They contain a thin wire that melts and breaks the circuit when the current exceeds a specified value. They are rated in Amperes (A).
Relays: Electrically operated switches that allow a low-current circuit to control a high-current circuit. They're often used for headlights, horn, and other high-power devices. A relay consists of a coil and a set of contacts. When the coil is energized, it closes the contacts, completing the high-current circuit.
Fuse Puller: A small plastic tool designed to safely remove fuses without damaging them or yourself.
Fuse Tester: A simple device (often a small LED light) used to check if a fuse is blown without removing it.

Symbols and Legends: Decoding the Diagram

The fuse box diagram isn't just a random assortment of numbers and lines. It uses symbols and a legend to convey information. Here's what you might encounter:

Amperage Ratings (Numbers): Each fuse location on the diagram is labeled with a number followed by "A" (e.g., "10A," "15A," "20A"). This indicates the ampere rating of the fuse that should be installed in that slot. Using a fuse with a higher amperage than specified can be extremely dangerous and can cause fires.
Circuit Descriptions (Text): Beside each fuse location, there's a short description of the circuit it protects (e.g., "Headlights," "Radio," "Power Windows").
Lines and Colors: Some diagrams use colored lines to indicate the type of circuit or its voltage. However, this is less common in fuse box diagrams compared to full wiring schematics. Generally, you'll see solid lines representing the circuit path.
Icons: Sometimes, icons are used to represent the component protected by the fuse. For example, a light bulb icon for headlights, a speaker icon for the radio, etc.
Relay Symbols: Relays are typically represented by a rectangular box with symbols indicating the coil and the contacts.

How It Works: The Electrical Circuit's Protector

Fuses are wired in series with the circuit they protect. This means all the current flowing through the circuit also flows through the fuse. When the current exceeds the fuse's rating, the wire inside the fuse heats up rapidly and melts, creating an open circuit. This immediately stops the flow of current, preventing damage to the wiring and components connected to that circuit. Think of it as a deliberate weak point in the system, designed to fail safely.

Real-World Use: Troubleshooting Like a Pro

Let's say your NV200's radio suddenly stops working. Here's how to use the fuse box diagram to troubleshoot:

Locate the Fuse Box Diagram: The diagram is often printed on the inside of the fuse box cover or found in your owner's manual.
Identify the Radio Fuse: Consult the diagram and find the fuse labeled "Radio" or "Audio System." Note its amperage rating (e.g., 15A).
Locate the Fuse in the Fuse Box: Find the corresponding fuse location in the actual fuse box.
Inspect the Fuse: Use a fuse puller to remove the fuse. Visually inspect it. If the wire inside is broken or blackened, the fuse is blown. You can also use a fuse tester to check the fuse without removing it.
Replace the Fuse: Replace the blown fuse with a new fuse of the exact same amperage rating. Never use a fuse with a higher rating.
Test the Circuit: Turn on the radio. If it works, you've solved the problem. If the fuse blows again immediately, there's a short circuit in the radio wiring that needs further investigation.

Safety First: Recognizing Risky Components

Working with electrical systems can be dangerous. Here are some critical safety precautions:

Always disconnect the negative battery cable before working on the electrical system. This minimizes the risk of electrical shock.
Never replace a fuse with one of a higher amperage rating. This can overload the circuit and cause a fire.
If a fuse blows repeatedly, there's likely a short circuit in the wiring. Don't just keep replacing the fuse. Diagnose and repair the underlying problem.
Be careful when working near the battery. It contains corrosive acid and can produce explosive gases.
If you're uncomfortable working with electrical systems, consult a qualified mechanic.
Never probe directly into the fuse sockets with anything metallic (like a paperclip or screwdriver) while the battery is connected. This is a shortcut to causing shorts and potentially damaging your vehicle's electrical system and yourself!

Understanding your 2019 Nissan NV200's fuse box diagram empowers you to diagnose and resolve common electrical issues, saving you time and money. Remember to always prioritize safety and consult a professional if you're unsure about any procedure.

To help you even further, we have a high-resolution, printable PDF version of the 2019 Nissan NV200 fuse box diagram readily available for you to download. This will be an invaluable resource for all your electrical troubleshooting and modification needs.