2018 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 314).
Some vehicles may have the
ability to modify trailer towing
features. See Towing (page 274).
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
268).
You can also find information in
the
RV & Trailer Towing Guide
available at your authorized
dealer, or online.
274
Expedition (TB8) Canada/United States of America, enUSA, Edition date: 201708, Third-Printing- Towing

Protected Component
Fuse Rating
Fuse Number
Horn.
25A 1
1
Fan 1.
50A 2
2
Front wiper motor.
30A 2
3
Not used.
—
4
Starter relay.
30A 2
5
Power point 1.
20A 2
6
Power point 2.
20A 2
8
Rain sensor.
5A 1
10
Not used.
—
12
315
Expedition (TB8) Canada/United States of America, enUSA, Edition date: 201708, Third-Printing- FusesE251921

Protected Component
Fuse Rating
Fuse Number
4x4 module.
10A 1
13
Heated backlite.
Heated mirror relay coil.
Heated wiper park relay coil.
Transmission isolation relay coil.
Transmission control module.
15A 1
14
Voltage quality module run/start power.
15A 1
15
Blindspot information system.
Head Up Display.
Image processing module B.
Front view camera.
Rear view camera.
Cruise control module.
Powertrain control module (PCM) run/
start feed.
10A 1
16
Antilock brake system run/ start feed.
10A 1
17
Electronic power assist steering run / start
feed.
10A 1
18
Not used.
—
19
Front blower.
40A 2
20
Passenger seat motors.
40A 2
21
Not used.
20A 1
22
Alternator A-line.
10A 1
23
Trailer brake control module.
30A 2
24
Body control module power 1.
50A 2
25
Electronic fan 3.
50A 2
26
Driver seat motors.
40A 2
27
Rear heated seats.
15A 1
28
Integrated wheel end solenoid.
10A 1
29
316
Expedition (TB8) Canada/United States of America, enUSA, Edition date: 201708, Third-Printing- Fuses

Protected Component
Fuse Rating
Fuse Number
Trailer tow class II-IV battery charge.
25A 2
30
Power folding seat module.
50A 2
31
A/C clutch.
10A 1
32
Not used.
—
33
Not used.
—
34
Vehicle power 4.
20A 1
35
Vehicle power 3.
10A 1
36
Vehicle power 2.
25A 1
37
Vehicle power 1.
25A 1
38
Not used.
—
39
Inverter.
50A 2
41
Trailer Tow Light Module Class II-IV.
20A 2
43
Front/rear washer pump.
20A 2
45
Family entertainment system.
7.5A 1
46
Not used.
—
47
Not used.
—
48
Not used.
—
49
Fuel pump.
30A 2
50
Power point 3.
20A 2
51
Body control module (BCM) voltage quality
module (VQM).
50A 2
52
Trailer tow park lamps relay.
25A 2
53
Electronic limited slip differential relay.
40A 2
54
317
Expedition (TB8) Canada/United States of America, enUSA, Edition date: 201708, Third-Printing- Fuses

Protected Component
Fuse Rating
Fuse Number
Heated wiper park.
10A 1
80
Not used.
—
81
Not used.
—
82
Transmission control module power.
15A 1
83
Not used.
—
84
Not used.
—
85
USB smart charger 5.
5A 1
86
USB smart charger 3.
5A 1
87
Multi-contour seats relay.
10A 1
88
Power running boards.
40A 2
89
Power liftgate module.
30A 2
91
Heated mirrors.
15A 1
93
USB smart charger 1.
5A 1
94
USB smart charger 2.
10A 1
95
Rear wiper motor relay.
30A 2
96
Intercooler puller relay fan.
40A 2
97
Transmission oil pump.
15A 2
98
Heated backlite.
40A 2
99
Power point 5.
20A 2
100
Fan 2.
25A 2
101
Not used.
—
102
Not used.
—
103
319
Expedition (TB8) Canada/United States of America, enUSA, Edition date: 201708, Third-Printing- Fuses

Protected Component
Fuse Rating
Fuse Number
Not used.
—
104
Not used.
—
105
1 Micro fuse.
2 M case use. Protected Component
Relay Number
Electric fan 2.
R02
Powertrain Control Module.
R05
Passenger Compartment Fuse Box Protected Component
Fuse Rating
Fuse or Relay
Number
Not used.
—
1
Driver seat switch.
7.5A 1
2
Driver door unlock.
20A 1
3
320
Expedition (TB8) Canada/United States of America, enUSA, Edition date: 201708, Third-Printing- FusesE145984

Protected Component
Fuse Rating
Fuse or Relay
Number
Trailer brake controller.
5A 1
4
Speaker amplifier.
20A 1
5
Not used (spare).
10A 2
6
Not used (spare).
10A 2
7
Not used.
—
8
Rear seat entertainment module.
10A 2
9
Head up display.
Wireless accessory charger module.
5A 2
10
Hands free liftgate module.
Power liftgate module.
Keypad.
5A 2
11
Combined sensor module.
Cluster.
7.5A 2
12
Electronic control panel.
Smart datalink connector logic.
Gear shift module.
7.5A 2
13
Steering column control module.
Extended power module.
10A 2
14
Brake switch.
Smart datalink connector power.
10A 2
15
Liftglass release.
15A 1
16
Telematics control unit - modem.
5A 2
17
Ignition switch.
5A 2
18
Key inhibit solenoid.
Push button start switch.
Transmission control switch.
7.5A 2
19
Gearshift module.
Not used.
7.5A 2
20
321
Expedition (TB8) Canada/United States of America, enUSA, Edition date: 201708, Third-Printing- Fuses

Protected Component
Fuse Rating
Fuse or Relay
Number
Humidity and in–car temperature sensor.
5A 2
21
Electrochromatic mirror.
5A 2
22
Second row heated seat module.
Moonroof logic.
10A 1
23
Inverter.
Power window switch.
Power mirror switch.
Central lock unlock
20A 1
24
Left front door zone module.
30A 1
25
Right front door zone module.
30A 1
26
Moonroof.
30A 1
27
Stereo amplifier.
20A 1
28
Left rear door zone module.
30A 1
29
Right rear door zone module.
30A 1
30
Adjustable pedals.
15A 1
31
SYNC
10A 1
32
Drive mode switch module.
4x4 switch.
Radio frequency transceiver module.
Rear heating, ventilation and air condi-
tioning control module.
Audio control module.
20A 1
33
Run/start relay.
30A 1
34
Extended power mode module.
5A 1
35
Image processing module A.
15A 1
36
Automated park assist module.
Continuous control damping module.
322
Expedition (TB8) Canada/United States of America, enUSA, Edition date: 201708, Third-Printing- Fuses