2022 Nissan Altima — Fuse Box Diagram & Amperage (Locations, Circuits, Relays)

Quick answer

• Under-hood: Engine compartment fuse/relay box (IPDM E/R) next to the battery on the driver side. Holds most powertrain, lighting, ABS, cooling fan, A/C, and high‑amperage fuses and integrated relays.
• Interior/dash: Driver-side lower dash/kick-panel fuse box behind the trim cover. Houses most body electronics such as radio/infotainment, power outlets, SRS/airbag, HVAC controls, windows/locks, and interior lighting.
• Trunk/cargo: Not equipped on most 2022 Altima models. No separate rear fuse block from the factory.

Note: Nissan used an Intelligent Power Distribution Module (IPDM) with integrated relays. Fuse numbering and positions vary slightly by trim/engine (2.5L vs. 2.0 VC‑Turbo) and options (fog lamps, Bose audio, heated seats, moonroof). Always verify against the printed legend inside the fuse box lid and the owner’s manual for your VIN.

Engine compartment fuse/relay box (IPDM E/R)

Typical circuits and amp ratings shown below. “Fuse #” varies by trim — confirm on the lid diagram.

Integrated relays inside the IPDM (non user‑serviceable on most trims):

• Starter relay
• A/C compressor relay
• Cooling fan relays
• Headlamp relays (low/high)
• Horn relay
• Rear window defogger relay (element feed often switched in IPDM)

Location tips: Open the hood and remove the rectangular fuse/relay box cover near the battery. The underside of the lid has the official layout and numbering for your VIN.

Interior fuse box — driver lower dash/kick panel

This panel covers most body functions. “Fuse #” varies by trim — verify on the cover card.

Relays and modules near this panel:

• Body Control Module (BCM) is integrated in this area and handles turn signals/hazard flasher, interior lighting logic, and many body functions.
• Blower motor relay is BCM/IPDM controlled on this platform (not a separate cube relay in the panel).
• Sunroof relay(s) and seat heater relays are BCM controlled when equipped.

Access tip: Sit in the driver seat and look to the left of the steering column near the kick panel. Pry off the small cover to expose the mini fuses. Use the puller tool from the under‑hood box if needed.

Trunk/cargo fuse box

Not applicable for most 2022 Nissan Altima models. There is no dedicated rear fuse block from the factory. Trailer brake controller fusing is not provided on Altima (this is typically found on HD trucks only). Any aftermarket towing module will have its own inline fuses — check that add‑on harness for protection details.

How to test a fuse

• Visual: With the fuse removed, look through the translucent body for a broken metal strip. Replace if melted/open.
• Test light: Key ON; probe both tiny test tabs on top of the fuse. A good fuse lights on both sides; lit on one side only means blown.
• Multimeter continuity: Remove the fuse and check resistance across the blades. 0–1 ohm = good; OL/open = blown.
• Loaded circuit check: If a replacement blows immediately, the downstream circuit may be shorted to ground. Do not upsize the fuse.

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

• Front/console 12V outlet (15–20A): Shorted phone chargers, coins, or debris in the socket are frequent causes. Inspect the socket for foreign objects and try a known‑good charger.
• Radio/infotainment (10A): After battery service or accessory installs, the radio circuit may blow if a harness was pinched. Verify aftermarket splices and USB/12V adapters.
• Headlamps (10–15A each): A failing bulb can sometimes pop the fuse when it shorts. Replace bulbs in pairs and inspect the lamp connectors for heat damage.
• Blower motor feed (30–40A in IPDM): If the blower stops and the high‑amp fuse is open, check the blower motor for seized bearings and inspect the blower resistor/module for shorts.
• ABS pump (40–60A J‑case): Intermittent ABS light with a blown pump fuse suggests a shorted pump motor or chafed harness near the left frame rail.
• Fuel pump (15A): Crank/no‑start with no pump prime? Check the pump fuse first, then the pump ground and harness at the tank.

If your vehicle differs from the above, follow the diagram printed inside each fuse box cover — Nissan’s IPDM/BCM layouts vary slightly by trim and build date.

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