Auto User Guide

contact us

2021 Lincoln Navigator Fuses and Fuse Box | Diagram and Details

2021 Lincoln Navigator-Featured

Lincoln-logo

2021 Lincoln Navigator Fuses and Fuse Box | Diagram and Details

The 2021 Lincoln Navigator has a high-tech electrical system that is meant to make it work well and keep you safe. The fuse box, an important part of this system that protects different electrical lines in the car, is at the center of this system. The 2021 Navigator’s fuse box is placed in a way that makes it easy to reach for repairs and maintenance. Electrical overloads that could damage sensitive parts are stopped by fuses, which work as safety measures. Everyone who owns a car needs to understand how the switches are laid out and what they do. The 2021 Lincoln Navigator’s fuse box is well-organized, with each fuse doing a specific job, such as turning on lights or charging important electronics. A full fuse troubleshooting guide is included in the vehicle’s guidebook to help owners figure out what’s wrong and fix it. This guide helps users find the right fuse for their problems and gives them step-by-step steps on how to replace it. The 2021 Lincoln Navigator’s fuses and fuse box system were carefully thought out so that keeping electrical integrity is easy. This makes sure that driving is smooth and reliable.

2024 Lincoln Navigator L 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 in the engine compartment. It has high-current fuses that protect your vehicle’s main electrical systems from overloads.
You need to reset some features when you, or someone else, disconnects and reconnects the battery. See Changing the 12V Battery (page 390).
Replace fuses with the same type and rating. See Changing a Fuse2021 Lincoln Navigator-Fuses and Fuse Box-fig 1

Fuse Number Fuse Rating Protected Component
1 25 A Horn.
2 50 A Electric fan 1.
3 30 A Front wiper motor.
4 50 A Inverter.
5 30 A Starter relay.
6 20 A Power point #1.
8 20 A Power point #2.
10 5 A Rain sensor.
12 20 A Trailer tow light module.
13 10 A 4X4 module. Heated backlight relay coil. Heated mirror relay coil. Heated wiper park relay coil. Transmission isolation relay coil.
14 15 A Transmission coil module.
15 15 A Right-hand lighting driver module. Left-hand lighting driver module. Voltage quality module.
16 10 A Powertrain control module run/start feed.
17 10 A Anti-lock brake system run/start feed.
18 10 A Electronic power assist steering run/start feed.
19 — Not used.
20 40 A Front blower.
21 40 A Passenger seat motors.
22 — Not used.
23 10 A Alternator A-line.
24 30 A Trailer brake control module.
25 50 A The body control module power 1.
26 50 A Electric fan 3.
27 40 A Driver seat motors.
28 15 A Rear heated seats. Rear seat climate control module.
29 — Not used.
30 25 A Trailer tow class II-IV battery charge.
31 50 A Power folding seat module.
32 10 A A/C clutch.
33 — Not used.
34 — Not used.
35 20 A Vehicle power 4.
36 10 A Vehicle power 3.
37 25 A Vehicle power 2.
38 25 A Vehicle power 1.
39 — Not used.
41 — Not used.
43 — Not used.
45 20 A Front and rear washer pump.
46 7.5 A Family entertainment system.
47 — Not used.
48 — Not used.
49 — Not used.
50 30 A Fuel pump.
51 20 A Power point #3.
52 50 A Body control module voltage quality monitor.
53 25 A Trailer tow park lamps relay. Trailer tow control module.
54 40 A Electronic limited-slip differential relay.
55 40 A Auxiliary blower.
56 20 A Power point #4.
58 5 A Front driver and passenger seats – belt tension reducer.
59 — Not used.
60 5 A Lincoln starts the lamp.
61 25 A Right-hand enhanced exterior lighting module.
62 25 A Left-hand enhanced exterior lighting module.
63 25 A 4X4 module.
64 — Not used.
65 — Not used.
66 — Not used.
67 — Not used.
69 30 A Power liftgate module.
70 40 A Anti-lock brake system and park brake module.
71 25 A 4X4 module
72 — Not used.
73 — Not used.
74 10 A Trailer tow backup lamps.
75 — Not used.
76 50 A The body control module runs power 2.
77 30 A Climate control seat module.
78 — Not used.
79 — Not used.
80 10 A Heated wiper park.
81 — Not used.
82 — Not used.
83 15 A Transmission control module power.
84 — Not used.
85 — Not used.
86 5 A USB smart charger #5.
87 5 A USB smart charger #3.
88 10 A Multi-contour seat relay.
89 40 A Power running boards.
91 — Not used.
93 15 A Heated mirrors.
94 5 A USB smart charger #1.
95 10 A USB smart charger #2.
96 30 A Rear wiper motor relay.
97 40 A Intercooler puller fan relay.
98 15 A Transmission oil pump.
99 40 A Heated backlight.
100 20 A Power point #5.
101 25 A Electric fan 2.
102 — Not used.
103 — Not used.
104 — Not used.
105 — Not used.

Note: Spare fuse amperage may vary.

Relay Number Protected Component
R02 Powertrain control module.
R05 Electric fan 2.

Passenger Compartment Fuse Box
The fuse box is under the right-hand side of the instrument panel.2021 Lincoln Navigator-Fuses and Fuse Box-fig 2
To remove the trim panel for access to the fuse box, pull the panel toward you swing it out and away from the side, and remove it.

2024 Lincoln Navigator L Specs, Price, Features, Mileage And Review

To reinstall it, line up the tabs with the grooves on the panel, then push it shut.

2021 Lincoln Navigator-Fuses and Fuse Box-fig 3

Fuse Number Fuse Rating Protected Component
1 — Not used.
2 10 A Driver seat switch.
3 7.5 A Driver door unlock.
4 20 A Speaker amplifier.
5 — Not used.
6 10 A Smart datalink connector logic.
7 10 A Rear audio control module. Head-up display.
8 5 A Wireless accessory charger. Hands-free liftgate module.
9 5 A Keypad. Combined sensor module.
10 — Not used.
11 — Not used.
12 7.5 A Instrument cluster.
13 7.5 A Steering column control module. Smart datalink connector logic. Climate control module. Gear shift module.
14 15 A Brake switch.
15 15 A SYNC.
16 — Not used.
17 7.5 A Headlamp control module.
18 7.5 A Not used (spare).
19 5 A Telematics control unit module. Bluetooth low energy module.
20 5 A Not used (spare).
21 5 A In-vehicle temperature and humidity sensor.
22 5 A Electrochromic mirror. Second row heated seat module.
23 30 A Left-hand front door zone module. Power window switch. Power mirror switch. DVD player.
24 30 A Moonroof logic.
25 20 A Speaker amplifier 2.
26 30 A Right-hand front door zone module.
27 30 A Left-hand rear door zone module.
28 30 A Right-hand rear door zone module.
29 15 A Adjustable column and pedal memory module.
30 5 A Trailer tow control module.
31 10 A Rear climate control module. Drive mode switch module. Terrain management system switch. Radiofrequency transceiver module.
32 20 A Audio control module. Rear seat entertainment module. Rear audio control module.
33 — Not used.
34 30 A Run/start relay.
35 5 A Not used (spare).
36 15 A Image processing module A. Automated park assist module. Continuous control damping module. Air particulate matter sensor.
37 20 A Heated steering wheel.
38 30A Circuit Breaker Left-hand rear power window. Right-hand rear power window.

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.2021 Lincoln Navigator-Fuses and Fuse Box-fig 4

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 Types2021 Lincoln Navigator-Fuses and Fuse Box-fig 5

  1. Micro 2.
  2. Micro 3.
  3. Maxi.
  4. Mini.
  5. M Case.
  6. Case.
  7. J Case Low Profile.
  8. Slotted M Case.

 

FAQs

Where is the fuse box located in the 2021 Lincoln Navigator?

The fuse box in the 2021 Lincoln Navigator is typically located in the interior cabin, near the driver’s side, or in the engine compartment.

How many fuse boxes does the 2021 Lincoln Navigator have?

The vehicle usually has two fuse boxes – one in the interior and another in the engine compartment.

What are the common signs of a blown fuse in the Lincoln Navigator?

Common signs include malfunctioning electrical components, lights not working, or the vehicle failing to start.

Can I replace a fuse in the 2021 Lincoln Navigator myself?

Yes, you can replace a fuse yourself. The owner’s manual provides information on fuse locations and amperage.

Which fuse controls the power windows in the Lincoln Navigator?

Fuse box diagram to identify the specific fuse controlling the power windows.

How do I troubleshoot a non-functional air conditioning system in my Navigator?

Check the fuse related to the HVAC system. If it’s blown, replace it, and if the issue persists, further inspection may be needed.

What tools do I need to check and replace fuses in the 2021 Lincoln Navigator?

A fuse puller, available in the fuse box cover, or a pair of needle-nose pliers can be used to remove and replace fuses.

Are there spare fuses included with the vehicle?

It’s common for spare fuses to be included in the fuse box or a compartment near the fuse box.

How do I access the engine compartment fuse box in the Lincoln Navigator?

Open the hood and locate the fuse box cover. It usually has a latch or clips that can be released for access.

What should I do if I don’t have the owner’s manual for the Navigator?

The owner’s manual can often be found online on the manufacturer’s website, or you can consult a dealership for a copy.

Is there a master fuse in the Lincoln Navigator?

No, there isn’t a single “master” fuse. Different fuses control various electrical components in the vehicle.

Can a fuse issue cause the Check Engine light to come on?

While a blown fuse might cause certain engine-related issues, it typically doesn’t trigger the Check Engine light. That’s usually related to the engine control system.

How do I identify a blown fuse without a multimeter?

Check for a visibly broken or melted wire inside the fuse. Alternatively, use a fuse tester or replace it with a new fuse and see if the problem resolves.

What precautions should I take when handling fuses?

Ensure the vehicle is turned off, use insulated tools, and follow safety guidelines. Avoid touching metal parts when handling fuses.

Can a fuse issue cause the airbags to malfunction?

The airbag system usually has its own set of fuses. If there are airbag issues, it’s advisable to consult a professional for inspection and repair.

View full PDF: 2021 Lincoln Navigator Owner’s Manual | Auto User Guide

2024 Lincoln Navigator L Specs, Price, Features, Mileage And Review

2021 Lincoln Navigator Instrument Cluster | Warning Symbols Guide