Fixing Blown Fuse: 2021 Lincoln Aviator | Fuses and Fuse Box Diagram
Fixing blown fuses in your 2021 Lincoln Aviator is important for keeping the car’s electrical system working. A fuse is a safety feature that stops electrical overloads that could damage important systems. To effectively repair and fix electrical problems, you must fully understand the fuse diagram and user guide. To find your way, the fuse diagram shows the exact circuits and the fuse values that go with them. This guide helps users find the right fuse for a broken part, whether it’s for the lights, windows, or another electrical system. Finding your way around this resource makes sure that problems with fuses are dealt with in a methodical way, which leads to a quick and correct answer. If Aviator owners fully understand the fuse diagram and user guide, they can keep the electrical system running at its best and quickly fix any problems that arise, whether a blown fuse is a nuisance or a safety measure.
2023 LINCOLN Aviator Specs, Price, Features, Mileage And Review
FUSE SPECIFICATION CHART
Engine Compartment Fuse Box
WARNING: Always disconnect the battery before servicing high-current fuses.
WARNING: To reduce the risk of electrical shock, always replace the cover to the power distribution box before reconnecting the battery or refilling fluid reservoirs.
The engine compartment fuse box is under the driver-side leaf screen in the engine compartment. It has high-current fuses that protect the vehicle’s main electrical systems from overloads.
If you disconnect and reconnect the battery, you need to reset some features. See Changing the 12V Battery (page 397).
Note: Replace fuses with the same type and rating. See Changing a Fuse (page 381).
| Fuse or Relay Number | Fuse Rating | Protected Component |
| 1 | 40A | Body control module – battery power in feed 1. |
| 2 | 20A | Not used (spare). |
| 3 | 40A | Body control module – battery power in feed 2. |
| 4 | 30A | Fuel pump. |
| 5 | 5A | The powertrain control module keeps alive power. |
| 6 | 20A | Powertrain control module power. |
| 7 | 20A | Canister vent solenoid. Evaporative leak control module. Exhaust gas heat recovery. Tank pressure control valve. Refueling valve. Vapor blocking valve. Universal exhaust gas oxygen 11. Universal exhaust gas oxygen 21. Catalyst monitor sensor 12. Catalyst monitor sensor 22. Canister purge valve. |
| 8 | 20A | Cooling fan relay coil. Battery interrupt box. Transmission oil pump. Auxiliary coolant pump. Fuel flap door. Engine coolant bypass valve. Active grille shutters. |
| 9 | 20A | Ignition coils. |
| 13 | 40A | Front blower motor relay. |
| 14 | 15A | Transmission oil pump. A/C compressor variable clutch. Engine mounts. Auxiliary pumps. |
| 16 | 15A | Windshield and rear window washer pump relay power. |
| 17 | 5A | Charge status indicator. |
| 18 | 30A | Starter motor. |
| 21 | 10A | Headlamp leveling motors. Adaptive headlamps. |
| 22 | 10A | Electric power-assisted steering module. |
| 23 | 10A | Anti-lock brake system module with integrated park brake. |
| 24 | 10A | Powertrain control module. Hybrid powertrain control module. |
| 25 | 10A | Air quality sensor. Particulate matter sensor. 360-degree camera with park aid. Rear view camera. Blind spot information system. Adaptive cruise control module. |
| 26 | 15A | Transmission control module. |
| 28 | 40A | Anti-lock brake system valves with integrated park brake. |
| 29 | 60A | Anti-lock brake system pump with integrated park brake. |
| 30 | 30A | Driver seat module. |
| 31 | 30A | Passenger seat module. |
| 32 | 20A | Not used (spare). |
| 33 | 20A | Rear cargo area PowerPoint. |
| 34 | 20A | Main console bin PowerPoint. |
| 35 | 20A | Not used (spare). |
| 36 | 40A | Power inverter. |
| 38 | 30A | Climate-controlled seat module. |
| 41 | 30A | Power liftgate module. |
| 42 | 30A | Trailer brake control module. |
| 43 | 60A | Body control module. |
| 44 | 10A | Brake on and off switch. |
| 46 | 15A | Battery charger control module. |
| 50 | 40A | Heated backlight. |
| 54 | 20A | Heated steering wheel. |
| 55 | 20A | Trailer tow park lamps. |
| 57 | 30A | Trailer tow battery charge. |
| 58 | 10A | Trailer tow backup lamps. |
| 61 | 15A | Multi-contour seat module. |
| 62 | 15A | Headlamp washer pump. |
| 64 | 40A | Four-wheel drive module. |
| 69 | 30A | Front window wiper motor. |
| 71 | 15A | Rear window wiper motor. |
| 72 | 20A | Air suspension module. |
| 73 | 30A | Driver door module. |
| 78 | — | Not used. |
| 79 | — | Not used. |
| 80 | 20A | Left-hand front electronic door. |
| 82 | 20A | Right-hand front electronic door. |
| 88 | 20A | Rear blower motor. |
| 91 | 20A | Trailer tow lighting module. |
| 95 | 15A | Integrated spark control. |
| 96 | 15A | Not used (spare). |
| 97 | 10A | Electric A/C. High voltage positive temperature coefficient heater. |
| 98 | 10A | Traction battery coolant proportional valve. |
| 103 | 50A | Not used (spare). |
| 104 | 50A | Not used (spare). |
| 105 | 40A | Not used (spare). |
| 106 | 40A | Not used (spare). |
| 107 | 40A | Not used (spare). |
| 108 | 20A | Not used (spare). |
| 109 | 30A | Passenger door module. |
| 111 | 30A | Body control module voltage quality monitor feed. |
| 112 | 20A | Left-hand rear electronic door. |
| 114 | 50A | Air suspension compressor. |
| 115 | 20A | Amplifier. |
| 116 | 5A | Not used (spare). |
| 118 | 30A | Second-row heated seats. |
| 120 | 15A | Port fuel injectors. |
| 124 | 5A | Rain sensor. |
| 125 | 5A | USB smart charger 1. |
| 127 | 20A | Amplifier. |
| 128 | 15A | Illuminated badge. |
| 131 | 40A | Power folding seat module. |
| 133 | 15A | Left-hand heated wiper blade. Right-hand heated wiper blade. |
| 134 | 10A | Family entertainment system. |
| 136 | 20A | Right-hand rear electronic door. |
| 139 | 5A | USB smart charger 2. |
| 142 | 5A | Traffic cam. |
| 146 | 15A | Battery electronic control module. |
| 148 | 30A | Left-hand headlamp module. |
| 149 | 30A | Right-hand headlamp module. |
| 150 | 40A | Not used (spare). |
| 155 | 25A | Transmission control module. |
| 159 | 15A | DC/DC converter. |
| 160 | 10A | Not used (spare). |
| 168 | 20A | Low voltage service disconnect. |
| 169 | 10A | Coolant pump. |
| 170 | 10A | Traction battery coolant pump. Pedestrian sounder. |
| 177 | 10A | Center console blower. |
Note: Spare fuse amperage may vary.
Passenger Compartment Fuse Panel
The fuse panel is under the instrument panel to the left of the steering column.
2023 LINCOLN Aviator Specs, Price, Features, Mileage And Review
Note: It may be easier to access the fuse panel if you remove the finish trim piece.
| Fuse or Relay Number | Fuse Rating | Protected Component |
| 1 | — | Not used. |
| 2 | 10A | Moonroof. eCall. Telematics control unit module. Inverter. Driver door switch pack |
| 3 | 7.5A | Memory seat switch. Wireless accessory charger module. Seat switches. |
| 4 | 20A | Not used (spare). |
| 5 | — | Not used. |
| 6 | 10A | Not used. |
| 7 | 10A | Smart data link connector power. |
| 8 | 5A | Telematics control unit module. Hands-free liftgate actuation module. Power liftgate module. |
| 9 | 5A | Combined sensor module. Keypad switch. Rear climate control. |
| 10 | — | Not used. |
| 11 | — | Not used. |
| 12 | 7.5A | Remote climate control module. Gear shift module. |
| 13 | 7.5A | Steering column control module. Switch interface module A. Smart datalink connector. Instrument cluster. |
| 14 | 15A | Not used (spare). |
| 15 | 15A | SYNC. Electronic finish panel. |
| 16 | — | Not used. |
| 17 | 7.5A | Headlamp control module. |
| 18 | 7.5A | Not used (spare). |
| 19 | 5A | Headlamp switch. Push button ignition switch. |
| 20 | 5A | Telematics control unit module. eCall. Bluetooth low energy module. |
| 21 | 5A | Not used. |
| 22 | 5A | Not used (spare). |
| 23 | 30A | Not used (spare). |
| 24 | 30A | Moonroof. |
| 25 | 20A | Not used (spare). |
| 26 | 30A | Not used (spare). |
| 27 | 30A | Not used (spare). |
| 28 | 30A | Not used (spare). |
| 29 | 15A | Head-up display. |
| 30 | 5A | Trailer brake connector. |
| 31 | 10A | Terrain management switch. Transceiver module. |
| 32 | 20A | Audio control module. |
| 33 | — | Not used. |
| 34 | 30A | Run/start relay. |
| 35 | 5A | Not used (spare). |
| 36 | 15A | Park assist module. Electrochromic mirror. Suspension module. Image processing module A. |
| 37 | 20A | Not used (spare). |
| 38 | — | Not used. |
Note: Spare fuse amperage may vary.
CHANGING A FUSE
Fuses
WARNING: Always replace a fuse with one that has the specified amperage rating. Using a fuse with a higher amperage rating can cause severe wire damage and could start a fire.
If electrical components in the vehicle are not working, a fuse may have blown. Blown fuses are identified by a broken wire within the fuse. Check the appropriate fuses before replacing any electrical components.
Fuse Types
| Callout | Fuse Type |
| A | Micro 2 |
| B | Micro 3 |
| C | Maxi |
| D | Mini |
| E | M Case |
| F | J Case |
| G | J Case Low Profile |
FAQs
The fuse box in the 2021 Lincoln Aviator is typically located in the engine compartment or interior, depending on the model.
Check the fuse for a broken filament or a visibly melted appearance. You can use a multimeter to test for continuity.
Replace the blown fuse with one of the same amperage rating to ensure proper function. The amperage ratings are usually labeled on the fuse box or in the owner’s manual.
No, it’s not recommended. Using a higher amperage fuse can lead to electrical system damage. Always use the specified amperage rating.
In most cases, a pair of needle-nose pliers or a fuse puller tool is sufficient for removing and replacing fuses.
See the owner’s manual for a detailed fuse diagram. It will provide information about the function and location of each fuse.
Many vehicles come with a set of spare fuses located in the fuse box or a compartment nearby. Check your owner’s manual for details.
Persistent fuse issues may indicate an underlying electrical problem. Consult a professional mechanic to diagnose and repair the issue.
It depends on the function of the blown fuse. Critical systems, such as headlights or brake lights, may affect your ability to drive safely.
Fuses don’t need to be reset. Once you replace a blown fuse with a new one, it should restore power to the corresponding system.
No, always use the specified fuse type as recommended in the owner’s manual. Using the wrong type may result in electrical issues.
If you’re having trouble identifying the correct fuse, consult your vehicle’s wiring diagram or seek assistance from a professional mechanic.
Common issues may include blown fuses for accessories like power windows, lights, or the radio. Refer to your owner’s manual for specific details.
Yes, if you’re unable to identify or resolve the problem, seeking assistance from a professional mechanic or the dealership is advisable.
It’s best to use the recommended fuse type and brand to maintain compatibility with the vehicle’s electrical system.
Useful Link:
View full PDF: 2021 Lincoln Aviator Owner’s Manual | Auto User Guide
2023 LINCOLN Aviator Specs, Price, Features, Mileage And Review
2021 Lincoln Aviator Instrument Cluster | Indicators User Guide