relay FORD SUPER DUTY 2017 4.G Owners Manual

TOWING A TRAILER
WARNINGS
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. Do not exceed the GVWR or
the GAWR specified on the
certification label. Note:
See Recommended
Towing Weights (page 277).
Your vehicle may have electrical
items, such as fuses or relays,
related to towing. See
Fuses
(page 310).
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
261).
You can also find information in
the
RV & Trailer Towing Guide
available at your authorized
dealer, or online.
268
Super Duty (TFE) Canada/United States of America, enUSA, First Printing Towing

Protected components
Fuse amp rating
Fuse or relay number
Powertrain control module.
20A 1
1
Emissions (MIL).
20A 1
2
Cooling fan.
20A 1
3
A/C compressor.
Engine brake.
Noise suppression cap.
20A 1
4
Mass air flow sensor.
Emissions.
Glow plugs.
Urea.
Compressed natural gas fuel control
module.
15A
1
5
Not used.
—
6
Not used.
—
7
Not used.
—
8
Not used.
—
9
Heated exterior mirrors.
15A 1
10
CNG relay.
—
11
Heated rear window.
40A 2
12
Not used.
—
13
Powertrain control module relay.
—
14
Horn.
20A 1
15
A/C clutch relay power.
10A 1
16
Rear heated window and heated mirrors
relay.
—
17
Not used.
—
18
Not used.
—
19
Supplemental air heater bank #1 relay.
—
20
311
Super Duty (TFE) Canada/United States of America, enUSA, First Printing Fuses

Protected components
Fuse amp rating
Fuse or relay number
Not used.
—
21
Auxiliary power point #5 (rear console).
20A 2
22
Run-start.
Not used.
—
23
Cooling fan relay.
—
24
Supplemental air heater bank #3 relay.
Glow plug module power relay.
—
25
Not used.
—
26
Trailer tow battery charge relay.
30A 2
27
Run-start relay.
—
29
4x4 module.
10A 1
30
Adaptive cruise control.
5A 1
31
Run-start.
Anti-lock brake system module.
5A 1
32
Run-start.
Powertrain control module (ISPR).
10A 1
33
Run-start.
Engine control module.
Transmission control module.
Blind spot information system.
10A 1
34
Run-start.
Front camera.
Rear camera.
Not used.
—
35
Blower motor relay.
—
36
Trailer tow battery charge relay.
—
37
A/C compressor clutch relay.
—
38
Horn relay.
—
39
Supplemental air heater bank #2 relay.
—
40
Glow plugs.
25A 2
41
312
Super Duty (TFE) Canada/United States of America, enUSA, First Printing Fuses

Protected components
Fuse amp rating
Fuse or relay number
Trailer tow lighting module.
40A 2
42
Front blower motor.
40A 2
43
Voltage quality module.
50A 3
44
Body control module.
Active front steering.
60A 3
45
Supplemental air heater bank #2.
50A 3
46
Cooling fan.
50A 3
47
Supplemental air heater bank #3.
Body control module RP1 bus.
50A 3
48
Inverter.
60A 3
49
Body control module RP2 bus.
50A 3
50
Body control module B+ feed.
60A 3
51
Anti-lock brake system pump.
60A 3
52
Supplemental air heater bank #1.
50A 3
53
Trailer brake control module.
30A 2
54
Climate controlled seat module.
30A 2
55
Auxiliary lighting module.
40A 2
56
Power running boards.
30A 2
57
Compressed natural gas fuel control
module relay.
30A
2
58
Anti-lock brake system valve.
30A 2
59
Not used.
—
60
Driver power seat.
30A 2
61
Auxiliary power point #1 (instrument
panel).
20A
2
62
313
Super Duty (TFE) Canada/United States of America, enUSA, First Printing Fuses

Protected components
Fuse amp rating
Fuse or relay number
Starter motor.
30A 2
63
Auxiliary power point #2.
20A 2
64
Trailer tow lighting module.
30A 2
65
Auxiliary power point #3 (center console).
20A 2
66
Passenger power seat.
30A 2
67
Auxiliary power point #4 (rear media bin).
20A 2
68
4x4 module.
25A 2
69
Not used.
—
70
Not used.
—
71
Trailer tow left hand/right hand stop/turn.
30A 2
72
Not used.
—
73
Not used.
—
74
Fuel pump.
30A 2
75
Not used.
—
76
Wiper motor.
30A 2
77
Not used.
—
78
Power sliding rear window.
30A 2
79
4x4 module.
25A 1
80
4x4 solenoid.
10A 1
81
Power telescoping mirrors.
10A 1
82
Rear heated seats.
20A 1
83
Trailer tow backup lamps.
10A 1
84
Not used.
—
85
314
Super Duty (TFE) Canada/United States of America, enUSA, First Printing Fuses

Protected components
Fuse amp rating
Fuse or relay number
Not used.
—
86
Not used.
—
87
Multi contour seats.
10A 1
88
Not used.
—
89
Spot light module.
10A 1
90
Upfitter interface module.
10A 1
91
Not used.
—
92
Not used.
—
93
Transmission control module.
15A 1
94
Powertrain control module keep alive
power.
10A
1
95
Rain sensor.
5A 1
96
Not used.
—
97
Alternator sense.
10A 1
98
Trailer tow parking lamps.
30A 1
99
1 Micro fuse.
2 M-type fuse.
3 J-type fuse.
Passenger Compartment Fuse
Panel
The fuse panel is located under the
instrument panel to the left of the steering
column. Note:
It may be easier to access the fuse
panel if you remove the finish trim piece.
315
Super Duty (TFE) Canada/United States of America, enUSA, First Printing Fuses

Protected components
Fuse amp rating
Fuse or relay number
Not used.
—
1
Memory seat switch (lumbar power).
7.5A 1
2
Driver door unlock relay.
20A 1
3
Aftermarket electronic brake controller.
5A 1
4
Rear heated seat module.
20A 1
5
Not used.
—
6
Not used.
—
7
Not used.
—
8
Not used.
—
9
Securicode™ keyless entry keypad.
5A 2
10
Rear climate control module.
5A 2
11
Front climate control module.
7.5A 2
12
Instrument cluster.
7.5A 2
13
316
Super Duty (TFE) Canada/United States of America, enUSA, First Printing FusesE145984

Protected components
Fuse amp rating
Fuse or relay number
Smart data link.
Steering column control module.
Not used.
—
14
Smart datalink connector power.
10A 2
15
Heads up display.
Not used.
—
16
Electronic finish panel.
5A 2
17
Push button ignition switch.
5A 2
18
Ignition switch.
Key inhibit.
Transmission control switch (tow/haul).
7.5A 2
19
Not used.
—
20
Terrain management system.
5A 2
21
Head-up display.
Humidity sensor.
Occupant classification sensor.
5A 2
22
Accessory delay.
10A 1
23
Power windows.
Moonroof.
Power folding mirrors relay.
Inverter.
Window/moonroof switch illumination.
Central locking system relay.
20A 1
24
Left-hand front smart window motor.
30A 1
25
Door zone module.
Right-hand front smart window motor.
30A 1
26
Door zone module.
Moonroof.
30A 1
27
Sony amplifier - 10 channel.
20A 1
28
Sony amplifier - 14 channel.
30A 1
29
Not used.
—
30
317
Super Duty (TFE) Canada/United States of America, enUSA, First Printing Fuses

Protected components
Fuse amp rating
Fuse or relay number
Not used.
—
31
SYNC.
10A 1
32
GPS module.
Display.
Radio frequency receiver.
Radio.
20A 1
33
Run-start relay.
30A 1
34
Restraints control module.
5A 1
35
Lane keeping system.
15A 1
36
Automatic high beam control.
Auto-dimming mirrors.
Rear heated seats.
Heated steering wheel.
20A 1
37
Left-hand front window motor.
30A 3
38
Rear power window motors.
1 Micro fuse.
2 Dual micro fuse.
3 Circuit breaker.
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.
318
Super Duty (TFE) Canada/United States of America, enUSA, First Printing FusesE217331

•
An authorized dealer needs to install
mobile communications systems.
Improper installation may harm the
operation of your vehicle, particularly
if the manufacturer did not design the
mobile communication system
specifically for automotive use.
• If you or an authorized Ford dealer add
any non-Ford electrical or electronic
accessories or components to your
vehicle, you may adversely affect
battery performance and durability. In
addition, you may also adversely affect
the performance of other electrical
systems in the vehicle. The auxiliary switch option package
provides six switches mounted in the
overhead console. These switches operate
when the vehicle is running or from battery
power, depending on the switchable fuse
AUXF4's location in the upfitter relay box.
We recommend, however, that the engine
remain running to maintain battery charge
when using the auxiliary switches for
extended periods of time or higher current
draws.
Note:
When your vehicle has a diesel
engine, use the auxiliary switches only when
the engine is running. The glow plugs also
drain battery power when the ignition key is
in the on position. Using the auxiliary
switches, even for limited amounts of time,
can cause your battery to drain quickly and
prevent your vehicle from restarting. When switched on, the auxiliary switches
provide electrical battery power for a
variety of personal or commercial uses.
Switches 1 through 4 provide 25 amps.
Switches 5 and 6 provide 40 amps.
The relay box for the auxiliary switches is
in the rear of the engine compartment,
near the back wall. See your authorized
dealer for service.
The relays are coded as shown:
562
Super Duty (TFE) Canada/United States of America, enUSA, First Printing AccessoriesE220728 E220729