2021 Lincoln Nautilus Fuses and Fuse Box Diagram User Guide

2021 Lincoln Nautilus Fuses and Fuse Box Diagram User Guide

This guide covers the 2021 Lincoln Nautilus fuse box schematic and location. Understand where each fuse box is and how to identify fuses for efficient car diagnosis and electrical maintenance.

2024 LINCOLN NAUTILUS Review, Price, Features And Mileage (Brochure)

Video: 2021 Lincoln Nautilus Fuses

UNDER HOOD FUSE BOX

LOCATING THE UNDER HOOD FUSE BOX

ACCESSING THE UNDER HOOD FUSE BOX

Accessing the Under Hood Fuse Box -Top

Accessing the Under Hood Fuse Box -Bottom

1. Release the latches on both sides of the fuse box.
2. Raise the inboard side of the fuse box from the cradle.
3. Move the fuse box toward the center of the engine compartment.
4. Pivot the outboard side of the fuse box to access the bottom side.

BOX Under Hood Fuse Box – Top

Fuse Number	Fuse Rating	Protected Component
1	30 A	Second-row power seat.
2	—	Starter relay.
3	15 A	Rear window wiper. Rain sensor. Rear wash relay coil.
4	—	Blower motor relay.
5	—	Not used.
6	—	Not used.
7	20 A	Powertrain control module – vehicle power 1.
8	20 A	Powertrain control module – vehicle power 2. Canister vent. Vapor blocking value. Heated oxygen post.
9	—	Powertrain control module relay.
10	20 A	Power outlet 5-main bin.
11	15 A	Powertrain control module – vehicle power 4.
12	15 A	Powertrain control module – vehicle power 3.
13	—	Not used.
14	—	Not used.
15	—	Run-start relay.
16	20 A	Power outlet 2 – back of the console.
17	20 A	Power outlet 4 – luggage compartment.
18	—	Not used.
19	10 A	Run-start electronic power assist steering.
20	10 A	Run/start lighting.
21	—	Not used.
22	10 A	Air conditioner clutch solenoid.
23	15 A	Front split view camera. Rear view camera. Forward-looking radar. 360° camera module. Blind spot information system. Voltage quality module (start/stop).
24	10 A	Not used (spare).
25	10 A	Run-start anti-lock brake system.
26	10 A	Run-start powertrain control module.
27	5 A	USB power outlet – back of the console.
28	10 A	Rear window washer pump.
29	—	Not used.
30	—	Not used.
31	—	Not used.
32	—	Electronic fan 1 relay.
33	—	A/C clutch relay.
34	—	Not used.
35	—	Not used.
36	—	Not used.
37	—	Not used.
38	—	Electronic fan 2 relays.
39	—	Electronic fan 3 relays.
40	—	Horn relay.
41	—	Left-hand high beam and stop lamp relay.
42	—	Fuel pump relay.
43	15 A	Right-hand high beam and stop lamp.
44	—	Not used.
45	—	Not used.
46	—	Not used.
47	—	Not used.
48	15 A	Left-hand high beam and stop lamp.
49	—	Not used.
50	20 A	Horn.
51	—	Not used.
52	—	Not used.
53	10 A	Massaging seats.
54	10 A	Brake on-off switch.
55	10 A	Alternator A-line.
86	—	Not used.

Under Hood Fuse Box – Bottom

Fuse Number	Fuse Rating	Protected Component
56	—	Not used.
57	—	Not used.
58	30 A	Fuel pump feed.
59	40 A	Electronic fan 3.
60	40 A	Electronic fan 1.
61	—	Not used.
62	50 A	Body control module 1.
63	25 A	Electronic fan 2.
64	—	Not used.
65	20 A	Front heated seat.
66	15 A	Not used (spare).
67	50 A	Body control module 2.
68	40 A	Heated rear window.
69	30 A	Anti-lock brake system valves.
70	30 A	Passenger seat.
71	–	Not used.
72	—	Not used.
73	20 A	Rear heated seats.
74	30 A	Driver seat module.
75	25 A	Windshield wiper motor.
76	30 A	Power liftgate module.
77	30 A	Climate-controlled seat module.
78	40 A	Trailer tow.
79	40 A	Blower motor.
80	—	Not used.
81	40 A	110 V inverter.
82	–	Not used.
83	—	Not used.
84	30 A	Starter motor solenoid.
85	—	Not used.
87	60 A	Anti-lock brake system pump.

BODY CONTROL MODULE FUSE BOX

LOCATING THE BODY CONTROL MODULE FUSE BOX

IDENTIFYING THE FUSES IN THE BODY CONTROL MODULE FUSE BOX

 

Fuse or Relay Number	Fuse Rating	Protected Components
1	–	Not used.
2	10 A	Delayed accessory – power inverter logic, moonroof logic, and driver window switch power.
3	7.5 A	Memory seats.
		Lumbar. Wireless accessory charging.
4	20 A	Subwoofer amplifier.
5	–	Not used.
6	10 A	Security horn relay.
7	10 A	Gearshift module.
8	5 A	Power liftgate module. Hands-free liftgate module. Embedded modem.
9	5 A	Keypad. Combined sensing module.
10	–	Not used.
11	–	Not used.
12	7.5 A	Climate control module. Enhanced central gateway module.
13	7.5 A	Instrument cluster. Steering column control module.
14	15 A	Not used.
15	15 A	SYNC module.
16	–	Not used.
17	7.5 A	Headlamp control module.
18	7.5 A	Not used (spare).
19	5 A	Headlamp switch. Bluetooth low energy module.
20	5 A	Push button ignition switch.
21	5 A	Not used (spare).
22	5 A	Not used (spare).
23	30 A	Driver door window and mirror. Driver door module. Driver door lock indicator. Driver lock switch illumination.
24	30 A	Moonroof.
25	20 A	Amplifier.
26	30 A	Front passenger door window and mirror. Front passenger door module. Front passenger lock indicator. Front passenger switch illumination.
27	30 A	Left-hand rear door module.
28	30 A	Right-hand rear door module.
29	15 A	Enhanced central gateway power – OBD connector.
30	5 A	Not used (spare).
31	10 A	Radio transceiver module. Multi-function display. Integrated control panel.
32	20 A	Radio.
33	–	Not used.
34	30 A	Run-start bus (fuse 17, 18, 21, 22, 35, 36, 37, circuit breaker 38).
35	5 A	Passenger airbag deactivation indicator.
36	15 A	Rear heated seat module. Suspension module.
37	20 A	Heated steering wheel. Auto-dimming interior mirror. Automatic high beam and lane departure mirror module. Parking assist control module.
38	30 A	Circuit breaker.

IDENTIFYING FUSE TYPES

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

FUSES – TROUBLESHOOTING

FUSES – FREQUENTLY ASKED QUESTIONS

When do I need to check a fuse?
If electrical components in the vehicle are not working.

When do I need to replace a fuse?
If a fuse has blown.

How do I identify a blown fuse?
You can identify a blown fuse by a broken wire within the fuse.

Useful Link:

View full PDF: 2021 Lincoln Nautilus User Guide | Auto User Guide

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Video: 2021 Lincoln Nautilus Fuses