The 2004 Lincoln Aviator, a popular SUV known for its blend of luxury and performance, incorporates a complex electrical system that relies on fuses to protect its various components. Locating the correct fuse is crucial for diagnosing and resolving electrical issues, especially when it comes to your vehicle’s On-Board Diagnostics system, or OBD2. If you’re experiencing problems connecting your OBD2 scanner to your 2004 Lincoln Aviator, a blown fuse could very well be the culprit. This guide will help you pinpoint the 2004 Lincoln Aviator Obd2 Fuse Location and understand the fuse box diagrams for this vehicle.
The 2004 Lincoln Aviator utilizes not just one, but five distinct fuse boxes strategically placed throughout the vehicle. Understanding where these fuse boxes are situated is the first step to effectively troubleshooting any electrical problem, including issues with your OBD2 port. Below is an overview of the fuse box locations and their diagrams to help you navigate the system.
Passenger compartment fuse panel diagram
The passenger compartment fuse panel is often the first place to check for many interior electrical issues. This fuse box is typically located inside the vehicle, often beneath the dashboard on the driver’s side or passenger’s side. Consult your owner’s manual for the precise location in your 2004 Lincoln Aviator.
Power distribution box diagram
The power distribution box, sometimes referred to as the engine compartment fuse box, handles high-current fuses and relays for major vehicle systems. You’ll typically find this box under the hood, often near the battery or engine bay.
The fuse/relay location box might be another distribution point for fuses and relays. Its exact location can vary, but it’s usually in the engine compartment or sometimes near the passenger compartment.
An auxiliary relay box provides additional relay capacity for various vehicle functions. This box may be located in the engine compartment or other areas depending on the vehicle’s configuration.
The rear relay box is specifically for systems located in the rear of the vehicle. As the name suggests, you’ll find this fuse box in the cargo area or rear quarter panel.
Now, let’s delve into the details of the fuse boxes, specifically focusing on the fuse that powers your OBD2 port. Based on the provided information, the OBD II port fuse for the 2004 Lincoln Aviator is located in the passenger compartment fuse panel.
Here’s a detailed look at the passenger compartment fuse panel diagram and the fuses within it:
| Type | No. | Description |
|---|---|---|
| Fuse MINI 30A | 1 | Moonroof motor, Driver seat lumbar switch |
| Fuse MINI 10A | 2 | VAPS module, Memory seat module, Body security module, Tire Pressure Monitor System (TPMS), Sunload/Autolamp sensor (SecuriLock LED) |
| Fuse MINI 20A | 3 | Radio, Navigation system |
| Fuse MINI 5A | 4 | Front wiper module |
| Fuse MINI 15A | 5 | Flasher relay (turn/hazards) |
| Fuse MINI 5A | 6 | Electronic Hidden Antenna Module (EHAM) (antenna amplifier), Radio, Moonroof motor, Driver window motor, Navigation |
| Fuse MINI 15A | 7 | Heated mirrors, DEATC module |
| Fuse MINI 5A | 8 | Daytime Running Lamps (DRL) module, Heated PCV valve |
| Fuse MINI 10A | 9 | Back-up lamps (DTRS), Electrochromatic mirror |
| Fuse MINI 10A | 10 | Heated backlight relay coil, Climate seat modules, Auxiliary A/C temperature blend/mode actuator, A/C clutch relay contact |
| Fuse MINI 20A | 11 | Not used (spare) |
| Fuse MINI 15A | 12 | Restraints module |
| Fuse MINI 10A | 13 | Brake shift interlock |
| Fuse MINI 5A | 14 | Not used (spare) |
| Fuse MINI 5A | 15 | Instrument cluster, Rear wiper module, TPMS |
| Fuse MINI 20A | 16 | Cigar lighter, OBD II |
| Fuse MINI 15A | 17 | Delayed accessory relay coil, Battery saver relay coil and contacts |
| Fuse MINI 5A | 18 | Not used (spare) |
| Fuse MINI 15A | 19 | Washer pump |
| Fuse MINI 5A | 20 | Shifter, Clock, Power mirror switch, DVD |
| Fuse MINI 10A | 21 | Brake pressure switch (ABS), IVD switch, Flasher relay |
| Fuse MINI 10A | 22 | ABS module |
| Fuse MINI 7.5A | 23 | Liftgate release relay coil and contacts |
| Fuse MINI 30A | 24 | Subwoofer, Navigation |
| Fuse MINI 5A | 25 | Trailer tow battery charge relay coil |
| Fuse MINI 5A | 26 | SecuriLock® transceiver |
| Fuse MINI 5A | 27 | Rear park assist, VAPS module |
| Fuse MINI 5A | 28 | Radio, Navigation |
| Fuse MINI 10A | 29 | DTRS, Feed to Fuse 28 |
| Fuse MINI 5A | 30 | Instrument cluster, Compass module, Auxiliary A/C relay coil |
Fuse number 16, a 20A MINI fuse, is explicitly listed as serving both the cigar lighter and the OBD II port. This is your target fuse when troubleshooting OBD2 scanner issues on your 2004 Lincoln Aviator. If your OBD2 scanner is not powering on or connecting, checking and replacing this fuse should be one of your first diagnostic steps.
It’s important to note that the cigar lighter (or accessory power outlet) and the OBD2 port often share the same fuse in many vehicles. Therefore, if your cigar lighter outlet is also not working, and you are having OBD2 communication problems, a blown fuse #16 in the passenger compartment fuse panel is highly likely.
While the passenger compartment fuse box houses the crucial OBD2 fuse, the other fuse boxes manage different vehicle systems. For a comprehensive understanding, here are the diagrams and fuse listings for the remaining fuse boxes in your 2004 Lincoln Aviator.
Power Distribution Box Fuses and Relays:
| Type | No. | Description |
|---|---|---|
| Fuse FLF/PAL 293 60A | 1 | Power Junction Box (PJB) |
| Fuse FMX/JCase 30A | 2 | Door locks (BSM) |
| Fuse FMX/JCase 40A | 4 | Heated backlight/mirrors |
| Fuse FMX/JCase 40A | 5 | Anti-lock Brake System (ABS) module (pump) |
| Fuse FMX/JCase 60A | 6 | Delayed accessory |
| Fuse FMX/JCase 20A | 7 | Daytime Running Lamps (DRL) module |
| Fuse FMX/JCase 20A | 8 | Electric cooling fan |
| Fuse FMX/JCase 20A | 9 | Headlamp switch |
| Fuse FMX/JCase 30A | 10 | ABS module (valves) |
| Fuse FMX/JCase 40A | 11 | PTEC relay contacts |
| Fuse FMX/JCase 50A | 12 | Ignition/Starter relay |
| Fuse FMX/JCase 40A | 13 | Trailer tow relays |
| Fuse MINI 15A | 14 | Brake lamp feed |
| Fuse MINI 10A | 15 | Keep alive power (PTEC/cluster/DEATC) |
| Fuse MINI 20A | 16 | Power point #3 |
| Fuse MINI 20A | 17 | Rear wiper module |
| Fuse MINI 20A | 18 | 4×4 module |
| Fuse FMX/JCase 30A | 19 | Driver window motor |
| Fuse FMX/JCase 30A | 20 | Electric trailer brakes |
| Fuse FMX/JCase 30A | 21 | Memory seat module |
| Fuse FMX/JCase 20A | 22 | Main exterior lamps (low beam headlamps, high beam headlamps, fog lamps) |
| Fuse FMX/JCase 30A | 23 | Ignition switch |
| Fuse MINI 20A | 24 | Horn relay |
| Fuse MINI 20A | 25 | Power point #1 |
| Fuse MINI 20A | 26 | Fuel pump relay contacts |
| Fuse MINI 20A | 27 | Trailer tow lamps |
| Fuse MINI 20A | 28 | Power point #2 |
| Fuse FLF/PAL 293 60A | 29 | PJB |
| Fuse FMX/JCase 30A | 30 | Front wiper module |
| Fuse FMX/JCase 30A | 31 | Climate-controlled seats modules |
| Fuse FMX/JCase 30A | 32 | Passenger seat switch |
| Fuse FMX/JCase 30A | 33 | Auxiliary blower motor |
| Fuse FMX/JCase 20A | 34 | Right HID relay |
| Fuse FMX/JCase 20A | 35 | Left HID relay |
| Fuse FMX/JCase 40A | 36 | Blower motor |
| Fuse MINI 15A | 37 | A/C clutch relay, TXV, Transmission, Speed control |
| Fuse MINI 15A | 38 | HEGO, VMV, Canister vent, IMCC-LSRC, EGR module |
| Fuse MINI 15A | 39 | Injectors |
| Fuse MINI 15A | 40 | PTEC, Mass Air Flow (MAF) sensor, Fuel pump relay |
| Fuse MINI 25A | 41 | Coil on plug, PTEC relay |
| Fuse MINI 10A | 42 | Right low beam (halogen) |
| Fuse MINI 10A | 43 | Left low beam (halogen) |
| Fuse MINI 2A | 44 | Heated PCV valve (w/DRL only) |
| Fuse MINI 2A | 45 | Brake Pressure Switch |
| Fuse MINI 20A | 46 | High beams/Fog lamps |
| Relay | 47 | Horn relay |
| Relay | 48 | Fuel pump relay |
| Relay | 49 | High beam relay |
| Relay | 50 | Fog lamp relay |
| Relay | 52 | A/C clutch relay |
| Relay | 53 | Trailer tow right turn relay |
| Relay | 54 | Trailer tow left turn relay |
| Relay | 55 | Blower motor relay |
| Relay | 56 | Starter motor relay |
| Relay | 57 | PTEC relay |
| Relay | 58 | Ignition relay |
| Relay | 59 | Driver brake applied relay |
| Diode MINI | 60 | PCM diode |
| Diode MINI | 61 | A/C clutch diode |
| Circuit breaker MAXI | 62 | Power windows |
Fuse/Relay Location Box Relays:
| Type | No. | Description |
|---|---|---|
| Relay | 1 | Flasher relay |
| Relay | 2 | Heated backlight relay |
| Relay | 3 | Delayed accessory relay |
| Relay | 4 | Open |
| Relay | 5 | Battery saver relay |
| Relay | 6 | Open |
| Relay | 7 | Open |
Auxiliary Relay Box Relays:
| Type | Description |
|---|---|
| Relay | Relay 64 Open |
| Relay | Relay 65 EDF relay (Full ISO) |
| Relay | Relay 66 Left HID relay (1/2 ISO) |
| Relay | Relay 67 Right HID relay (1/2 ISO) |
Rear Relay Box Relays and Diodes:
| Type | Description |
|---|---|
| Relay | Relay 14 Open |
| Relay | Relay 15 Trailer tow back-up lamps |
| Relay | Relay 16 Open |
| Relay | Relay 17 Open |
| Relay | Relay 18 Liftgate release solenoid |
| Relay | Relay 19 Trailer tow park lamps |
| Relay | Relay 20 Trailer tow battery charge |
| Relay | Relay 21 Open |
| Relay | Relay 22 Open |
| Relay | Relay 23 Open |
| Diode ATO | Diode 3 Open |
| Diode ATO | Diode 4 Open |
In conclusion, if you are seeking the 2004 Lincoln Aviator OBD2 fuse location, you should focus on the passenger compartment fuse panel. Specifically, fuse number 16 (20A) is the fuse that powers the OBD2 port. Always consult your vehicle’s owner’s manual for the most accurate fuse box locations and diagrams, as variations can occur. By understanding the fuse layout and locations, you can effectively troubleshoot electrical issues and maintain your 2004 Lincoln Aviator.
