relay FORD F-53 2020 Owners Manual

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.
Note: See
Recommended
Towing Weights (page 81).
Your vehicle may have electrical
items, such as fuses or relays,
related to towing. See
Fuses
(page 101).
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
75).
You can also find information in
the
RV & Trailer Towing Guide
available at your authorized
dealer, or online.
80
Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201910, Second-Printing Towing

Protected Component
Fuse
Rating
Fuse
Number
Horn.
20 A
1
Blower motor.
50 A
2
Not used.
—
3
Starter relay.
30 A
4
Not used.
—
5
Not used.
—
6
Not used.
—
8
Not used.
—
10
Not used.
—
12
Run/start feed climate controls.
10 A
13
Adaptive cruise control relay (commercial stripped chassis).
10 A
14
Not used (spare) (Motorhome stripped chassis).
Not used.
—
15
Not used.
—
16
Powertrain control module run/start feed.
10 A
17
Anti-lock brake system run/start feed.
10 A
18
Not used.
—
19
Wiper power.
40 A
20
Not used.
—
21
Wiper module.
10 A
22
Not used.
—
23
Body control module - battery power in feed 2.
40 A
24
Body control module - battery power in feed 1.
50 A
25
Not used.
—
26
B+ to body builder connector.
20 A
27
Not used.
—
28
102
Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201910, Second-Printing Fuses

Protected Component
Fuse
Rating
Fuse
Number
Alternator 1 A-line.
10 A
29
Not used.
—
30
Hydromax pump relay.
60 A
31
Vehicle power 1.
20 A
32
Vehicle power 2.
20 A
33
Vehicle power 3.
10 A
34
Vehicle power 4.
20 A
35
Not used.
—
36
Not used.
—
37
Wiper washer.
10 A
38
Not used.
—
39
Trailer brake control connector.
30 A
41
B+ to body builder connector.
30 A
43
Not used.
—
45
A/C clutch.
10 A
46
Not used.
—
47
Run/accessory to body builder connector.
20 A
48
Pump electronics module.
30 A
49
Injector.
15 A
50
Power point.
20 A
51
Not used.
—
52
Trailer tow park lamps.
30 A
53
Upfitter run/start feed.
40 A
54
Not used.
—
55
Power point.
20 A
56
USB smart charger.
5 A
58
103
Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201910, Second-Printing Fuses

Protected Component
Fuse
Rating
Fuse
Number
Not used.
—
59
Not used.
—
60
Not used.
—
61
Not used.
—
62
Not used.
—
63
Not used.
—
64
Not used.
—
65
Not used.
—
66
Brake on-off isolation relay.
10 A
67
Not used.
—
69
Not used.
—
70
Anti-lock brake system valves.
30 A
71
Not used (spare).
10 A
72
Not used.
—
73
Not used.
—
74
Not used.
—
75
B+ to body control module.
60 A
76
Voltage quality module power - body control module.
30 A
77
Trailer tow stop lamps.
10 A
78
Hydromax pump monitor.
5 A
79
Trailer tow backup lamps.
10 A
80
Not used.
—
81
Not used.
—
82
Not used.
—
83
Not used.
—
84
Not used.
—
85
104
Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201910, Second-Printing Fuses

Protected Component
Fuse
Rating
Fuse
Number
Not used.
—
86
Not used.
—
87
Not used.
—
88
Not used.
—
89
B+ to body builder connector.
40 A
91
Not used.
—
93
Not used.
—
94
Stop lamp relay.
20 A
95
Trailer brake controller.
Not used.
—
96
Not used (spare).
50 A
97
Trailer tow battery charge.
30 A
98
Not used.
—
99
Not used.
—
100
Not used.
—
101
Not used.
—
102
Not used.
—
103
Not used.
—
104
Trailer tow right-hand and left-hand stop and direction indicator relay
power.
15 A
105
Note: Spare fuse amperage may vary. Protected Component
Fuse Rating
Relay Number
Powertrain control module.
—
R02
Power relay.
Not used.
—
R05
105
Motorhome (TY3) Canada/United States of America, enUSA, Edition date: 201910, Second-Printing Fuses