Nissan Maxima 2003 Fuse Replacement
Having an electrical issue? It could be a blown fuse — an easy fix you can do yourself.
Follow the steps below to find and replace the fuse:
Step 1: Find the Fuse Box
In your Nissan Maxima 2003, the interior fuse box is typically located under the dashboard on the driver's side. Some vehicles also have an additional fuse box in the engine compartment. Check your owner's manual or the fuse box cover for the exact location.
Step 2: Identify the Corresponding Fuse
Below is the complete fuse list for your vehicle. Find the circuit that isn't working and note the fuse number and amperage.
Instrument panel Fuse Box
| Fuse # | Function | Amperage |
|---|---|---|
| 1 | Steering Wheel Receiver Control Switch, Audio Unit, CD Player, CD Changer, Woofer, Telephone Speaker Relay, Antenna, Telephone Control Unit, Front Monitor | 10 |
| 2 | Stop Lamp Switch (Rear Combination Lamp LH/RH, High-Mounted Stop Lamp), ASCD Control Unit, ABS, Transmission Control Unit | 15 |
| 3 | Trunk Lid Opener, Fuel Lid Opener, Trunk Lid Opener Relay (RHD) | 15 |
| 4 | Not Used | |
| 5 | Hazard Switch (Combination Flasher Unit), Multi-Remote Control Unit | 15 |
| 6 | Front Fog Lamp Relay | 15 |
| 7 | Rear Window Defogger Relay | 20 |
| 8 | Heated Oxygen Sensor | 15 |
| 9 | Heated Seat Switch LH/RH | 10 |
| 10 | Daytime Light Control Unit, Headlamp Aiming Control Unit, Door Switch, Headlamp Washer Control Unit, Height Sensor Rear LH/RH, Clearance Lamp LH/RH, License Lamp LH/RH, Rear Combination Lamp LH/RH, Power Window Switch (Illumination), Power Window Relay, Time Control Unit, Rear Window Defogger Relay, Auto Anti-Dazzling Inside Mirror, ASCD Brake Switch, ASCD Clutch Switch, ASCD Control Unit, Park/Neutral Position Relay, Data Link Connector, Multi-Remote Control Unit, Alarm Unit, Navi | 10 |
| 11 | Transmission Control Unit, Revolution Sensor, A/T Mode Switch | 10 |
| 12 | Key Switch, Time Control Unit, Combination Meter, Clock, Alarm Unit, Security Indicator, NATS Immu, Navi, Data Link Connector, A/C Auto Amplifier, Transmission Control Unit | 10 |
| 13 | Interior Lamp, Front Step Lamp, Door Switch, Time Control Unit, Ignition Key Hole Illumination, Spot Lamp, Vanity Mirror Lamp LH/RH (Illumination), Trunk Room Lamp/Switch, Rear Window Defogger Relay (Door Mirror) | 10 |
| 14 | Combination Meter, Clock, Door Mirror Remote Control Switch, Navi Control Unit, Front Monitor | 10 |
| 15 | Not Used | |
| 16 | Power Socket | 15 |
| 17 | Injector, Fuel Pump Relay (ECM) | 10 |
| 18 | Air Bag Diagnosis Sensor Unit | 10 |
| 19 | A/C Auto Amplifier, A/C Relay, A/C Control Unit, Air Mix Door Motor | 10 |
| 20 | Park/Neutral Position Relay (Park/Neutral Position Switch), NATS IMMU, EVAP Canister Purge Valve Volume Control Solenoid Valve, Swirl Control Valve Control Solenoid Valve, Cooling Fan Relay (1, 2, 3), Variable Induction Air Control System, ASCD | 15 |
| 21 | Daytime Light Control Unit, Engine Control Module | 10 |
| 22 | Cigarette Lighter | 15 |
| 23 | Not Used | |
| 24 | Not Used | |
| 25 | Front Wiper Motor, Front Washer Motor, Front Wiper Switch | 20 |
| 26 | Hazard Switch (Combination Flasher Unit) | 10 |
| 27 | Not Used | |
| 28 | Not Used | |
| 29 | Fuel Pump Relay (Fuel Pump and Fuel Level Sensor, Condenser) | 15 |
| 30 | Combination Meter, Daytime Light Control Unit, Alternator, Park/Neutral Position Switch (Back-Up Lamp), Door Switch, ASCD Brake Switch, ASCD Clutch Switch, ASCD Control Unit, Park/Neutral Position Relay | 10 |
| 31 | ABS | 10 |
Engine compartment Fuse Box
| Fuse # | Function | Amperage |
|---|---|---|
| 51 | Blower Motor Relay | 15 |
| 52 | Blower Motor Relay | 15 |
| 53 | Not Used | |
| 54 | Headlamp (Left) Relay, Headlamp (Left Low Beam), Diode | 20 |
| 55 | Headlamp (Right) Relay, Headlamp (Right Low Beam), Diode | 20 |
| 56 | Audio Unit, CD Player, CD Changer, Telephone Control Unit, Navi Control Unit, Front Monitor | 15 |
| 57 | Horn Relay | 10 |
| 58 | IACV-ACC Valve, ECM Relay (Condenser, Ignition Coil) | 15 |
| 59 | ECM Relay, NATS IMMU, Throtlle Position Switch, Crankshaft Position Sensor, Front Electronic Controlled Engine Mount, Rear Electronic Controlled Engine Mount | 15 |
| 60 | Headlamp Switch, Daytime Light Control Unit, Headlamp Aiming Motor LH/RH, Fog Lamp Switch, Navi Control Unit, Headlamp Washer Control Unit, Time Control Unit, Illunination Control Switch (Combination Meter, Audio Unit, CD Player, Cigarette Lighter, Headlamp Washer Switch, Glove Box Lamp, Hazard Switch, Navi Control Unit, Door Mirror Remote Control Switch, Clock, Headlamp Aiming Switch, A/T Device, A/C Control Unit, A/C Amplifier (Auto A/C), Ashtray) | 10 |
| 61 | Not Used | |
| 62 | Not Used | |
| 63 | Not Used | |
| 64 | Not Used | |
| 65 | Rear Fog Lamp Relay, Rear Fog Indicator | 10 |
| 66 | A/C Relay | 10 |
| 67 | Woofer | 15 |
| 68 | Headlamp (Left), Headlamp Switch, High Beam Indicator, Dimmer Relay, Diode, Daytime Light Control Unit, Headlamp (Left) Relay (Xenon) | 15 |
| 69 | Headlamp (Right), High Beam Indicator, Diode, Daytime Light Control Unit, Headlamp (Right) Relay (Xenon), Rear Fog Lamp Switch | 15 |
| 70 | Charging System | 10 |
| 71 | Not Used | |
| 72 | Not Used | |
| B | Accessory Relay (Fuse: "22"), Ignition Relay (Fuse: "8", "9", "10", "11"), Blower Motor Relay (Fuse: "14", "16"), Fuse: "12", "13", | 80 |
| C | Ignition Switch | 40 |
| D | ABS | 40 |
| E | ABS | 40 |
| F | Headlamp Washer Motor (Headlamp Washer Control Unit) | 30 |
| G | Cooling Fan Relay 1 (Low), Cooling Fan Relay 2 (High) | 40 |
| H | Cooling Fan Relay 3 | 40 |
| I | Circuit Breaker (Time Control Unit, Door Lock, Power Window Relay, Power Window Main Switch, Sunroof Motor, Power Seat) | 40 |
| J | Ignition Relay (Fuse: "25", "26", "29", "30", "31"), Fuse: "2", "3", "5", "6", "7" | 80 |
Step 3: Check the Fuse
Use the plastic fuse puller, typically found in the fuse box, to remove the fuse. Hold it up to a light source. If the metal filament inside is broken or charred, the fuse is bad and needs to be replaced.
Step 4: How to Get a Replacement
You can buy a replacement fuse at any auto parts store. Make sure you match the **amperage (A)** and **physical size** of the fuse exactly. For example, if you need a 20A fuse, get a 20A fuse.
Step 5: Replace the Fuse
Gently press the new fuse into the empty slot. You should feel a slight click when it's securely in place. Test the affected circuit to confirm it's working again.
What Now?
Fuse Was Blown — What to Buy
Ask at any auto parts store (AutoZone, O'Reilly, Advance Auto) for a blade fuse with the same amperage printed on the old one (e.g., 10A, 15A, 20A). Also match the physical size — mini (most modern cars), standard, or maxi. Replacement fuses cost under $5 and most stores sell assorted packs.
Fuse Looks Fine — Other Causes
If the fuse is intact, the problem isn't a blown fuse. Common alternatives include a bad relay (a click-sized electrical switch), a faulty wiring connection, or a failed component (motor, switch, module). At this point, a mechanic's diagnostic is the most reliable next step.
Frequently Asked Questions
What happens if I put in the wrong amperage fuse?
Higher amperage fuses won't protect the circuit and can cause wiring damage or fire. Lower amperage fuses will blow again immediately. Always match the exact amperage.
Why does my fuse keep blowing?
A repeatedly blown fuse indicates an underlying short circuit or overload. Replacing it again won't fix the root cause — consult a mechanic.
Do I need any tools?
Most cars come with a plastic fuse puller in the fuse box lid. If not, fine-tip needle-nose pliers work. A small flashlight helps.
How do I know what size fuse to buy?
Match the amperage printed on the old fuse (e.g., 10A, 15A, 20A) and the physical blade size (mini, standard, maxi). Auto parts stores carry assorted packs.