2025 Nissan Titan — Fuse Box Diagram & Amperage

Quick answer

• Under-hood: IPDM E/R (Intelligent Power Distribution Module) at the right (passenger) side of the engine bay, plus a battery-mounted fusible link block on the positive terminal cover.
• Interior: Driver’s side dash/kick-panel junction box (remove small trim panel by the hood release).
• Trunk/Cargo: No separate rear fuse box on the Titan. Trailer lighting/power circuits are protected in the under-hood IPDM.

Note: Nissan made minor layout changes by trim/market and model refresh. The tables below show the most common late 2nd‑gen Titan layout carried into 2024; 2025 should be similar. Always verify against the printed legend on your fuse box lid and the owner’s manual.

Under-hood IPDM E/R (engine bay fuse/relay box)

Typical location: passenger-side engine bay, behind the headlamp. Contains mini fuses, J‑case fuses, and most serviceable relays. Many relays are integrated.

Common relays in/at IPDM (exact positions vary; many are integrated):

• Starter relay (IPDM)
• Fuel pump relay (IPDM)
• A/C compressor relay (IPDM)
• Blower motor relay (often IPDM-integrated)
• Headlamp and fog lamp relays (IPDM)
• Radiator/cooling fan relays (if equipped)
• Horn relay (IPDM)

Battery-mounted fusible link block (positive terminal cover)

Typical location: On the battery positive post under a snap-on red cover. Protects high-amperage feeds to the IPDM, alternator, ABS, and cabin junction box.

Notes:

• These are not colored mini-blade fuses; they are J‑case or strip links molded into the block.
• Values can vary with equipment (gas vs. XD, premium audio, trailer package).

Interior dash/kick-panel fuse box (driver’s side)

Typical location: Lower left dash/kick panel, accessed by pulling the small cover next to the hood release. Protects interior electronics and low‑amperage body circuits.

Interior/body relays (locations vary by trim; some may be in the IPDM instead):

• Accessory power (ACC) relay
• Rear window defogger relay
• Power window main relay (often integrated)

Important: Nissan used multiple junction box part numbers. The exact “Fuse #” indices differ. Match by circuit name and amp rating on your lid legend.

How to test a fuse

• Visual check: Remove the suspect fuse with a puller and look for a broken metal element. Replace only with the same amp rating and style.
• Multimeter continuity: With the fuse removed, check for continuity across the blades. Infinite resistance means it’s blown.
• Test‑tab voltage check: With the fuse installed and key on, probe the two tiny test tabs on top. Both sides should show battery voltage. Power on one side only indicates a blown fuse.
• If it blows again immediately: You likely have a short to ground in the circuit. Stop replacing fuses and locate/repair the fault.

Common blown fuses on this vehicle (what to check first)

• 12V outlets/cigar lighter (15–20A, interior J/B): Coins or metal debris in the socket, or aftermarket chargers causing shorts. Inspect the socket for heat damage.
• Trailer lighting (10A fuses in IPDM): Corroded 7‑pin trailer connector or damaged trailer wiring. Unplug the trailer and recheck—if the truck lamps now work, the issue is on the trailer.
• Headlamps (15A in IPDM): Failed bulb or moisture in the headlamp assembly causing intermittent shorts. Verify correct bulb type/wattage.
• Blower inoperative (40A J‑case in IPDM + 10A HVAC control in cabin): If the main fuse is good, check the blower resistor/module and motor for excessive current draw.
• A/C clutch (10A in IPDM): Shorted clutch coil or chafed harness near the compressor.
• ABS (40A pump/10A control): Rodent or road‑debris damage to wheel‑speed sensor leads; scan for codes before replacing fuses.
• Radio/infotainment (15–20A, interior): Aftermarket accessories tied into the same circuit; check for pinched wiring behind the head unit.

Tip: If multiple body circuits are dead, inspect the battery‑mounted fusible link block for a blown main link after a jump‑start or reverse polarity event.

Always confirm your exact fuse number and position using the legend printed on the fuse box lid and the owner’s manual for your VIN/trim.

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