2015 Nissan Murano Fuse Box Diagram

The 2015 Nissan Murano, a stylish crossover SUV, relies heavily on its electrical system for a vast array of functions, from starting the engine to powering the infotainment system. Understanding the fuse box diagram for this vehicle is crucial for troubleshooting electrical issues, performing modifications, and ensuring the longevity of your Murano's electrical components. This article will provide a comprehensive guide to the 2015 Murano's fuse box, offering insights that will empower you to tackle electrical challenges with confidence.

Purpose of the Fuse Box Diagram

Why should you care about the fuse box diagram? Several compelling reasons exist:

• Troubleshooting Electrical Problems: When an electrical component fails – a headlight, the radio, or even the air conditioning – a blown fuse is often the culprit. The fuse box diagram identifies which fuse corresponds to which circuit, allowing you to quickly diagnose and replace the faulty fuse. Without the diagram, you're essentially flying blind.
• Performing Modifications: Adding aftermarket accessories, like a sound system or auxiliary lighting, requires tapping into the Murano's electrical system. The fuse box diagram helps you identify appropriate circuits to tap into while avoiding overloading existing circuits, potentially damaging sensitive electronics.
• Preventive Maintenance: Periodically inspecting the fuse box and ensuring that all fuses are in good condition can help prevent future electrical problems. The diagram helps you verify that the correct fuses are installed in the proper locations.
• General Understanding: Even if you don't anticipate performing any electrical work yourself, understanding the basics of your Murano's electrical system can be helpful in communicating issues to a mechanic and understanding the repairs that are being performed.

Key Specs and Main Parts

The 2015 Nissan Murano typically has two main fuse box locations:

• Inside the Vehicle (Cabin Fuse Box): This fuse box is usually located under the dashboard, often on the driver's side. It houses fuses for components like the interior lights, radio, power windows, and other convenience features.
• Under the Hood (Engine Compartment Fuse Box): This fuse box is located in the engine compartment, typically near the battery. It contains fuses for critical engine and drivetrain components, such as the engine control unit (ECU), fuel pump, ignition system, and exterior lights.

Each fuse box contains a variety of components:

• Fuses: These are the sacrificial elements that protect the electrical circuits from overcurrent. They are typically rated in amps (A), which indicates the amount of current the fuse can handle before blowing. Common amperage ratings include 5A, 7.5A, 10A, 15A, 20A, 25A, 30A, and higher.
• Relays: These are electromagnetic switches that allow a low-current circuit to control a high-current circuit. For example, a relay might be used to control the high beams or the starter motor.
• Fuse Puller: A small plastic tool used to safely remove fuses without damaging them.
• The Fuse Box Diagram: This is the critical document that identifies the location and function of each fuse and relay within the fuse box. It's usually located on the inside of the fuse box cover or in the owner's manual.

Symbols, Lines, Colors, and Icons

Understanding the symbols and conventions used in the fuse box diagram is essential for interpreting the information correctly. While the exact symbols may vary slightly depending on the specific diagram, some common symbols include:

• Lines: Solid lines represent wires or electrical connections. Thicker lines may indicate larger gauge wires or circuits carrying higher current.
• Colors: Wire colors are often indicated next to the lines. Understanding wire colors is crucial when tracing circuits for troubleshooting. Common colors include red (power), black (ground), blue, green, yellow, and white.
• Icons: These represent the components that the fuses protect. Common icons include:
  • A light bulb for lights (headlights, taillights, interior lights)
  • A radio for the audio system
  • A fan for the blower motor (HVAC system)
  • A steering wheel for power steering
  • An engine symbol for engine control components
• Amperage Ratings: Each fuse location will be labeled with the appropriate amperage rating for that circuit. Using a fuse with the wrong amperage rating can lead to electrical problems or even a fire.

The diagram is effectively a map of the electrical system. It shows the flow of current from the battery, through the fuse, and to the electrical component. A break in this flow, caused by a blown fuse, will prevent the component from functioning.

How It Works

The fuse box is the central distribution point for electrical power in the Murano. When the ignition is turned on, power flows from the battery to the various electrical circuits. Each circuit is protected by a fuse. If a circuit experiences an overcurrent condition (e.g., due to a short circuit), the fuse will blow, interrupting the flow of current and preventing damage to the electrical components connected to that circuit. This sacrificial action of the fuse protects the more expensive and sensitive components.

Relays, on the other hand, act as electrically controlled switches. They are used to control circuits that require a large amount of current. A small control current is used to activate the relay, which then closes a high-current circuit. This allows a small switch or signal to control a much larger electrical load.

Real-World Use: Basic Troubleshooting Tips

Here's a basic troubleshooting scenario:

Problem: The radio in your 2015 Murano is not working.

Troubleshooting Steps:

1. Consult the Fuse Box Diagram: Locate the fuse box diagram for the cabin fuse box. Identify the fuse labeled for the radio. The diagram will indicate the fuse number and amperage rating.
2. Inspect the Fuse: Locate the fuse in the fuse box. Use the fuse puller to remove the fuse. Visually inspect the fuse. If the thin wire inside the fuse is broken, the fuse is blown.
3. Replace the Fuse: Replace the blown fuse with a new fuse of the exact same amperage rating. Never use a fuse with a higher amperage rating, as this could damage the circuit.
4. Test the Radio: Turn on the ignition and test the radio. If the radio now works, the problem is solved.
5. If the Fuse Blows Again: If the new fuse blows immediately or shortly after being replaced, there is likely a more serious problem in the radio circuit, such as a short circuit. You will need to consult a qualified mechanic to diagnose and repair the problem.

Safety Considerations

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

• Disconnect the Battery: Before performing any electrical work, disconnect the negative (-) terminal of the battery. This will prevent accidental short circuits and electric shock.
• Use the Correct Fuses: Always use fuses with the correct amperage rating. Using a fuse with a higher amperage rating can overload the circuit and cause a fire.
• Avoid Working in Wet Conditions: Water and electricity are a dangerous combination. Avoid working on the electrical system in wet conditions.
• Be Careful Around High-Voltage Components: Some components, such as the ignition coil and the alternator, generate high voltages. Avoid touching these components while the engine is running.
• Airbags: Be especially careful around airbag components. Improper handling of these components can cause them to deploy, resulting in serious injury. If you're unsure about working near airbag components, consult a qualified mechanic.
• Consult a Professional: If you are not comfortable working on the electrical system, or if you encounter a problem that you cannot solve, consult a qualified mechanic.

Certain components can be particularly risky:

• High-Current Fuses: Fuses protecting circuits for components like the starter motor or the alternator handle very high currents. A short circuit in these circuits can result in a large arc and potential burns.
• Relays Controlling Critical Systems: Relays controlling systems like the fuel pump or the engine control unit (ECU) are essential for the safe operation of the vehicle. Tampering with these relays can have serious consequences.

By following these safety precautions and using the fuse box diagram as your guide, you can safely and effectively troubleshoot electrical problems in your 2015 Nissan Murano.

We have the complete 2015 Nissan Murano Fuse Box Diagram available for download. It's a high-resolution file that you can print out or view on your computer or mobile device. This diagram provides detailed information about the location and function of each fuse and relay in your Murano, making it an invaluable resource for troubleshooting and performing electrical work.