Fuses - Fuse Specification Chart

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Fuse Specification Chart

Engine Compartment Fuse Box

WARNING: Always disconnect the battery before servicing high current fuses.
WARNING

WARNING: To reduce 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.

Replace fuses with the same type and rating. See Changing a Fuse.

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	Not used (spare).
15	15 A	Voltage quality module run/start power. Blindspot information system. Image processing module B. Front view camera. Rear view camera. Cruise control 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	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 module.
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	Not used (spare).
59	—	Not used.
60	5 A	Not used (spare).
61	25 A	Not used (spare).
62	25 A	Not used (spare).
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 parking 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	Body control module 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	Not used (spare).
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 seats 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	Not used (spare).
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

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.
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	—	Not used.
18	7.5 A	Gear shift module. Column shifter.
19	5 A	Telematics control unit module.
20	5 A	Ignition switch.
21	5 A	In-vehicle temperature and humidity sensor.
22	5 A	Electrochromic mirror. Second row heated seat module.
23	30 A	Power window switch. Power mirror switch. Left-hand front door zone module.
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 pedals.
30	5 A	Trailer tow control module.
31	10 A	Rear climate control module. Drive mode switch module. Terrain management switch. Radio frequency transceiver module. 4x4 switch.
32	20 A	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.
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.

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2021 Expedition Owner's Manual