2017 Nissan Titan – Fuse Box Diagram & Amperage

Quick Answer

The 2017 Nissan Titan features multiple fuse box locations to protect its electrical systems. You'll find a main fuse box under the hood, a secondary fuse box located in the passenger compartment (behind the kick panel on the passenger side), and a third fuse box in the cargo area (right side panel) for specific accessories and trailer functions.

Under-Hood Fuse Box

The under-hood fuse box, also known as the IPDM E/R (Intelligent Power Distribution Module Engine Room), controls many critical engine and powertrain functions, as well as several exterior lights and other high-current accessories. This fuse box is typically located on the passenger side of the engine bay, near the battery.

Keep in mind that fuse configurations can vary slightly between different trim levels (S, SV, SL, Pro-4X, Platinum Reserve) and powertrain options (5.6L V8 gasoline or 5.0L Cummins Turbo Diesel). Always refer to the specific fuse diagram printed on the inside of your fuse box lid for the most accurate information applicable to your vehicle.

Relay Locations (Under-Hood):

The under-hood fuse box also houses several relays crucial for various systems:

• Fuel Pump Relay: Controls power to the fuel pump.
• Starter Relay: Engages the starter motor when the ignition is turned.
• A/C Compressor Relay: Activates the A/C compressor clutch.
• Headlight Relays (High/Low Beam): Control power to the headlight circuits.
• Horn Relay: Powers the horn.

Passenger Compartment Fuse Box (Dash/Kick Panel)

The passenger compartment fuse box is responsible for protecting many of the interior electrical components and accessories. It is typically located behind the kick panel on the passenger side of the vehicle, often requiring the removal of a trim piece to access it.

As with the under-hood box, specific fuse assignments can vary. Always check the diagram on the fuse box cover for your exact vehicle configuration.

Relay Locations (Passenger Compartment):

Within this fuse box, you might find relays for:

• Accessory Relay: Powers various interior accessories when the ignition is on.
• Power Window Relays: Control power to the power window motors.

Cargo Area Fuse Box (Trunk/Cargo)

For the 2017 Nissan Titan, particularly models equipped for towing or with specific cargo area accessories, there is an additional fuse box located in the cargo area. This can typically be found behind a trim panel on the right-hand side of the cargo bed or trunk area. This box mainly supports trailer connections and other utility functions.

How to Test a Fuse

Testing a fuse is a straightforward process that can help you diagnose electrical issues. Here's how you can do it:

1. Safety First: Always turn off the ignition and any affected components before working with fuses. If you're working on the under-hood fuse box, it's a good practice to disconnect the negative terminal of your battery, especially if you'll be removing relays or larger fuses.
2. Locate the Fuse: Identify the suspected fuse using the diagrams above and the printed legend on your fuse box cover.
3. Visual Inspection: Many modern fuses have a clear plastic body, allowing you to visually inspect the metal filament inside. If the filament is broken or burnt, the fuse is blown and needs replacement.
4. Use a Multimeter (for a more precise test):
   • Set your multimeter to the continuity setting (usually indicated by a symbol that looks like a sound wave or a diode symbol with an audible beep).
   • Touch the probes of the multimeter to the two test points on top of the fuse. These are typically small metal dots on the non-transparent part of the fuse.
   • If the multimeter beeps or shows a reading close to zero ohms, the fuse is good. If it shows "OL" (open loop) or no reading, the fuse is blown.
5. Use a Fuse Tester: Dedicated fuse testers are available and are very easy to use. Simply insert the fuse into the tester, and it will indicate if the fuse is good or bad.

Always replace a blown fuse with one of the exact same amperage rating and type (e.g., mini, ATO, MAXI). Using a fuse with a higher amperage can lead to serious electrical damage or fire.

Common Blown Fuses on This Vehicle

While any fuse can blow, some are more commonly encountered due to wear, electrical shorts, or common accessory usage. On a 2017 Nissan Titan, keep an eye on these circuits:

• Cigar Lighter/12V Power Outlets: These fuses often blow due to overloaded accessories (e.g., multiple phone chargers, air compressors) or faulty devices plugged into them. If your outlets aren't working, check the 15A (Blue) fuse in the passenger compartment fuse box (Fuse #2).
• Trailer Brake Controller/Trailer Power: If you frequently tow, the fuses for your trailer connections (Fuses #1, #5 in the cargo area fuse box) can blow, especially if there's a short in the trailer wiring or an issue with the trailer brake controller itself. Always check your trailer's wiring before replacing these fuses.
• Blower Motor: A failing blower motor or an obstruction in the blower motor can cause the 20A (Yellow) fuse (Under-Hood, Fuse #9) to blow, leading to no fan operation for your HVAC system.
• Headlights/Tail Lights: While less common for newer vehicles, a short in a bulb or wiring can sometimes cause a headlight (Under-Hood Fuses #1, #2) or tail light fuse (Under-Hood Fuses #12, #13) to blow. If only one light is out, check the bulb first.

If a fuse blows repeatedly, it indicates a more serious underlying electrical issue that needs professional diagnosis. Do not continuously replace fuses with new ones without addressing the root cause, as this could lead to damage to your vehicle's electrical system.

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