2021 FORD EXPEDITION relay

TOWING A TRAILER
WARNING: Towing trailers
beyond the maximum
recommended gross trailer
weight exceeds the limit of your
vehicle and could result in engine
damage, transmission damage,
structural damage, loss of
vehicle control, vehicle rollover
and personal injury. WARNING:
Do not exceed
the GVWR or the GAWR
specified on the certification
label.
Your vehicle may have electrical
items, such as fuses or relays,
related to towing. See
Fuses
(page 325).
Some vehicles may have the
ability to modify trailer towing
features. See Towing (page
285).
Your vehicle's load capacity
designation is by weight, not by
volume, so you cannot necessarily
use all available space when
loading a vehicle or trailer.
Towing a trailer places an extra
load on your vehicle's engine,
transmission, axle, brakes, tires
and suspension. Inspect these
components periodically during,
and after, any towing operation. Load Placement
To help minimize how trailer
movement affects your vehicle
when driving:
•
Load the heaviest items closest
to the trailer floor.
• Load the heaviest items
centered between the left and
right side trailer tires.
• Load the heaviest items above
the trailer axles or just slightly
forward toward the trailer
tongue. Do not allow the final
trailer tongue weight to go
above or below 10-15% of the
loaded trailer weight.
• Select a ball mount with the
correct rise or drop and load
capacity. When both the
loaded vehicle and trailer are
connected, the trailer frame
should be level, or slightly
angled down toward your
vehicle, when viewed from the
side.
When driving with a trailer or
payload, a slight takeoff vibration
or shudder may be present due to
the increased payload weight.
Additional information regarding
proper trailer loading and setting
your vehicle up for towing is
located in another chapter of this
manual. See
Load Limit (page
279).
You can also find information in
the
RV & Trailer Towing Guide
available at your authorized
dealer, or online.
285
Expedition (TB8) Canada/United States of America, enUSA, First-Printing Towing

Protected Component
Fuse Rating
Fuse
Number
Horn.
25 A
1
Electric fan 1.
50 A
2
Front wiper motor.
30 A
3
Inverter.
50 A
4
Starter relay.
30 A
5
Power point #1.
20 A
6
Power point #2.
20 A
8
Rain sensor.
5 A
10
Trailer tow light module.
20 A
12
4x4 module.
10 A
13
326
Expedition (TB8) Canada/United States of America, enUSA, First-Printing FusesE251921

Protected Component
Fuse Rating
Fuse
Number
Heated backlight relay coil.
Heated mirror relay coil.
Heated wiper park relay coil.
Transmission isolation relay coil.
Not used (spare).
15 A
14
Voltage quality module run/start power.
15 A
15
Blindspot information system.
Image processing module B.
Front view camera.
Rear view camera.
Cruise control module.
Powertrain control module run/start feed.
10 A
16
Anti-lock brake system run/start feed.
10 A
17
Electronic power assist steering run/start feed.
10 A
18
Not used.
—
19
Front blower.
40 A
20
Passenger seat motors.
40 A
21
Not used.
—
22
Alternator A-line.
10 A
23
Trailer brake control module.
30 A
24
Body control module power 1.
50 A
25
Electric fan 3.
50 A
26
Driver seat motors.
40 A
27
Rear heated seats.
15 A
28
Rear seat climate control module.
Not used.
—
29
Trailer tow class II-IV battery charge.
25 A
30
Power folding seat module.
50 A
31
A/C clutch.
10 A
32
Not used.
—
33
327
Expedition (TB8) Canada/United States of America, enUSA, First-Printing Fuses

Protected Component
Fuse Rating
Fuse
Number
Not used.
—
34
Vehicle power 4.
20 A
35
Vehicle power 3.
10 A
36
Vehicle power 2.
25 A
37
Vehicle power 1.
25 A
38
Not used.
—
39
Not used.
—
41
Not used.
—
43
Front and rear washer pump.
20 A
45
Family entertainment system.
7.5 A
46
Not used.
—
47
Not used.
—
48
Not used.
—
49
Fuel pump.
30 A
50
Power point #3.
20 A
51
Body control module voltage quality module.
50 A
52
Trailer tow park lamps relay.
25 A
53
Trailer tow control module.
Electronic limited slip differential relay.
40 A
54
Auxiliary blower.
40 A
55
Power point #4.
20 A
56
Not used (spare).
5 A
58
Not used.
—
59
Not used (spare).
5 A
60
Not used (spare).
25 A
61
Not used (spare).
25 A
62
4x4 module.
25 A
63
328
Expedition (TB8) Canada/United States of America, enUSA, First-Printing Fuses

Protected Component
Fuse Rating
Fuse
Number
Not used.
—
64
Not used.
—
65
Not used.
—
66
Not used.
—
67
Power liftgate module.
30 A
69
Anti-lock brake system and parking brake module.
40 A
70
4x4 module.
25 A
71
Not used.
—
72
Not used.
—
73
Trailer tow backup lamps.
10 A
74
Not used.
—
75
Body control module power 2.
50 A
76
Climate control seat module.
30 A
77
Not used.
—
78
Not used.
—
79
Heated wiper park.
10 A
80
Not used.
—
81
Not used.
—
82
Not used (spare).
15 A
83
Not used.
—
84
Not used.
—
85
USB smart charger #5.
5 A
86
USB smart charger #3.
5 A
87
Multi-contour seats relay.
10 A
88
Power running boards.
40 A
89
Not used.
—
91
329
Expedition (TB8) Canada/United States of America, enUSA, First-Printing Fuses

Protected Component
Fuse Rating
Fuse
Number
Heated mirrors.
15 A
93
USB smart charger #1.
5 A
94
USB smart charger #2.
10 A
95
Rear wiper motor relay.
30 A
96
Not used (spare).
40 A
97
Transmission oil pump.
15 A
98
Heated backlight.
40 A
99
Power point #5.
20 A
100
Electric fan 2.
25 A
101
Not used.
—
102
Not used.
—
103
Not used.
—
104
Not used.
—
105
Note: Spare fuse amperage may vary. Protected Component
Relay
Number
Powertrain control module.
R02
Electric fan 2.
R05
330
Expedition (TB8) Canada/United States of America, enUSA, First-Printing Fuses

Protected Component
Fuse Rating
Fuse
Number
Not used.
—
33
Run/start relay.
30 A
34
Not used (spare).
5 A
35
Image processing module A.
15 A
36
Automated park assist module.
Continuous control damping module.
Heated steering wheel.
20 A
37
Left-hand rear power window.
30A Circuit
Breaker
38
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. 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.
333
Expedition (TB8) Canada/United States of America, enUSA, First-Printing FusesE217331