Page 190 of 460

TOWING A TRAILER
WARNINGS
Do not exceed the GVWR or
the GAWR specified on the
certification label. Towing trailers beyond the
maximum recommended
gross trailer weight exceeds the
limit of the vehicle and could
result in engine damage,
transmission damage, structural
damage, loss of vehicle control,
vehicle rollover and personal
injury. Your vehicle may have electrical
items, such as fuses or relays,
related to towing. See the Fuses
chapter.
Your vehicle's load capacity
designation is by weight, not by
volume, so you cannot necessarily
use all available space when
loading a vehicle.
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 tow bar with the
correct rise or drop. 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
176). You can also find the
information in the RV & Trailer
Towing Guide, available at an
authorized dealer.
187
Super Duty (TFA) Towing
Page 206 of 460

Follow the severe duty schedule in your
Scheduled Maintenance information for
engine oil and transmission fluid change
intervals.
Snowplowing with your Airbag
Equipped Vehicle
WARNINGS
Do not attempt to service, repair, or
modify the airbag supplemental
restraint system (SRS) or its fuses.
See your Ford or Lincoln Mercury dealer. Additional equipment such as
snowplow equipment may affect the
performance of the airbag sensors
increasing the risk of injury. Please refer to
the Body Builders Layout Book for
instructions about the appropriate
installation of additional equipment. All occupants of the vehicle,
including the driver, should always
properly wear their safety belts, even
when provided with an airbag
supplemental restraint system (SRS). Your vehicle is equipped with a driver and
passenger airbag supplemental restraint
system. The supplemental restraint system
will activate in certain frontal and offset
frontal collisions when the vehicle sustains
sufficient frontal deceleration.
Careless or high speed driving while
plowing snow that results in sufficient
vehicle decelerations can deploy the
airbag. Such driving also increases the risk
of accidents
Never remove or defeat the tripping
mechanisms designed into the snow
removal equipment by its manufacturer.
Doing so may cause damage to the vehicle
and the snow removal equipment as well
as possible airbag deployment. Engine temperature while plowing
When driving with a plow, your engine may
run at a higher temperature than normal
because the attached snowplow blade will
restrict airflow to the radiator.
•
If you are driving more than 14.91 mi
(24 km) at temperatures above
freezing, angle the plow blade either
full left or full right to provide
maximum airflow to the radiator.
• If you are driving less than
14.91 mi
(24 km) at speeds up to 44.7 mph
(72 km/h) in cold weather, you will not
need to worry about blade position to
provide maximum airflow.
Transmission operation while
plowing WARNING
Do not spin the wheels at over
34.2 mph (55 km/h)
. The tires may
fail and injure a passenger or
bystander. •
Shift transfer case to
4L (4WD Low)
when plowing in small areas at speeds
below 5 mph (8 km/h).
• Shift transfer case to
4H (4WD High)
when plowing larger areas or light snow
at higher speeds. Do not exceed 15 mph
(24 km/h).
• Do not shift the transmission from a
forward gear to
R (Reverse) until the
engine is at idle and the wheels have
stopped.
203
Super Duty (TFA) Driving Hints
Page 217 of 460
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.
Standard Fuse Amperage Rating and Color Color
Fuse link
cartridge
Cartridge
maxi fuses
Maxi fuses
Standard
fuses
Mini fuses
Fuse rating
-
-
-
Grey
Grey
2A
-
-
-
Violet
Violet
3A
-
-
-
Pink
Pink
4A
-
-
-
Tan
Tan
5A
-
-
-
Brown
Brown
7.5A
-
-
-
Red
Red
10A
-
-
-
Blue
Blue
15A
Blue
Blue
Yellow
Yellow
Yellow
20A
Natural
Natural
-
Natural
Natural
25A
Pink
Pink
Green
Green
Green
30A
Green
Green
Orange
-
-
40A
Red
Red
Red
-
-
50A
Yellow
Yellow
Blue
-
-
60A
Brown
-
Tan
-
-
70A
Black
Black
Natural
-
-
80A
214
Super Duty (TFA) FusesE142430
Page 218 of 460
FUSE SPECIFICATION CHART
Power Distribution Box
WARNINGS
Always disconnect the battery before
servicing high current fuses.
To reduce risk of electrical shock,
always replace the cover to the
power distribution box before
reconnecting the battery or refilling fluid
reservoirs. The power distribution box is located in
the engine compartment. It has
high-current fuses that protect your
vehicle's main electrical systems from
overloads.
If you disconnect and reconnect the
battery, you will need to reset some
features. See Changing the 12V Battery
(page 235).
Protected components
Fuse amp rating
Fuse or relay number
Blower motor
Relay
1
Not used
—
2
Urea heaters (diesel engine)
Relay
3
Not used
—
4
Rear window defroster, Heated mirrors
Relay
5
Not used
—
6
Rear window defroster, Heated mirrors
50A*
7
Passenger seat
30A*
8
Driver seat
30A*
9
Not used
—
10
Not used
—
11
215
Super Duty (TFA) FusesE163101
Page 219 of 460
Protected components
Fuse amp rating
Fuse or relay number
Driver smart window motor
30A*
12
Not used
—
13
Not used
—
14
Fuel pump (diesel engine)
Diode
15
Not used
—
16
Heated mirror
15A**
17
Not used
—
18
Not used
—
19
Not used
—
20
Not used
—
21
Trailer tow electric brake
30A*
22
Blower motor
40A*
23
Not used
—
24
Wipers
30A*
25
Trailer tow park lamps
30A*
26
Urea heaters (diesel engine)
25A*
27
Buss bar
—
28
Trailer tow park lamps
Relay
29
A/C clutch
Relay
30
Wipers
Relay
31
Not used
—
32
Vehicle power 1
15A**
33
Vehicle power 2 (diesel engine)
15A**
34
Vehicle power 2 (gas engine)
20A**
Vehicle power 3
10A**
35
Vehicle power 4 (diesel engine)
15A**
36
Vehicle power 4 (gas engine)
20A**
216
Super Duty (TFA) Fuses
Page 220 of 460
Protected components
Fuse amp rating
Fuse or relay number
Vehicle power 5 (diesel engine)
10A**
37
Powertrain control module (diesel engine),
Electronic control module (gas engine)
Relay
38
4x4 hub lock
10A**
39
4x4 electronic lock
15A**
40
Not used
—
41
Rear heated seats
20A**
42
Not used
—
43
Not used
—
44
Run/start relay coil
10A**
45
Transmission control module keep-alive
power (diesel engine)
10A**
46
A/C clutch feed
10A**
47
Run/start
Relay
48
Rearview camera system
10A**
49
Blower motor relay coil
10A**
50
Not used
—
51
Powertrain control module, Electronic
control module, Transmission control
module run/start
10A**
52
4x4 module
10A**
53
Anti-lock brake system run/start
10A**
54
Rear window defroster coil, Battery charge
coil
10A**
55
Passenger compartment fuse panel run/
start feed
20A**
56
Fuel pump
Relay
57
Not used
—
58
Not used
—
59
217
Super Duty (TFA) Fuses
Page 221 of 460
Protected components
Fuse amp rating
Fuse or relay number
Not used
—
60
Not used
—
61
Not used
—
62
Not used
—
63
Not used
—
64
Not used
—
65
Fuel pump
20A**
66
Not used
—
67
Fuel pump relay coil
10A**
68
Not used
—
69
Trailer tow backup lamp
10A**
70
Canister vent (gas engine)
10A**
71
Powertrain control module, Electronic
control module relay coil feed keep-alive
power
10A**
72
Not used
—
73
Trailer tow left-hand stop/turn
Relay
74
Trailer tow right-hand stop/turn
Relay
75
Trailer tow backup lamp
Relay
76
Not used
—
77
Not used
—
78
Not used
—
79
Not used
—
80
Not used
—
81
Auxiliary power point #2
20A*
82
Auxiliary power point #1
20A*
83
4x4 shift motor
30A*
84
Heated/cooled seats
30A*
85
218
Super Duty (TFA) Fuses
Page 222 of 460
Protected components
Fuse amp rating
Fuse or relay number
Anti-lock brake system coil feed
25A*
86
Auxiliary power point #5
20A*
87
Auxiliary power point #6
20A*
88
Starter motor
40A*
89
Trailer tow battery charge
25A*
90
Not used
—
91
Auxiliary power point #4
20A*
92
Auxiliary power point #3
20A*
93
Auxiliary switch #1
25A*
94
Auxiliary switch #2
25A*
95
Anti-lock brake system pump
50A*
96
Inverter
40A*
97
Not used
—
98
Instrument panel power inverter
40A*
99
Trailer tow turn signals
25A*
100
Starter
Relay
101
Trailer tow battery charge
Relay
102
Not used
—
103
Not used
—
104
Not used
—
105
Not used
—
106
Not used
—
107
*Cartridge fuses
**Mini fuses
219
Super Duty (TFA) Fuses