relay FORD E SERIES 2017 4.G Owners Manual

TOWING A TRAILER
WARNINGS
Do not exceed the Gross
Vehicle Weight Rating or the
Gross Axle Weight Rating
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, for example fuses or relays,
related to towing. See Fuses
(page 125).
Your vehicle's load capacity
designation is by weight, not by
volume, so you cannot necessarily
use all available space when
loading your 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
correct trailer loading and setting
your vehicle up for towing is
located in another chapter of this
Owner's Manual. See
Load Limit
(page 95). You can also find the
information in the RV & Trailer
Towing Guide. See an authorized
dealer.
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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. Note:
If your vehicle is equipped with dual
batteries, disconnecting the primary
under-hood battery does not remove power
from all circuits.
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 the battery has been disconnected and
reconnected, you will need to reset some
features. See Changing the 12V Battery
(page 145). Protected components
Fuse amp rating
Fuse or relay number
Powertrain control module relay.
—
1
Starter solenoid relay.
—
2
Wiper relay.
—
3
Trailer tow battery charge.
—
4
Fuel pump relay.
—
5
Trailer tow park lamp relay.
—
6
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Protected components
Fuse amp rating
Fuse or relay number
Auxiliary switch #4 relay.
—
7
Auxiliary switch #3 relay.
—
8
Modified vehicle and stripped chassis run/
start relay.
—
9
Cooling fan relay (6.2L engine).
—
10
Cooling fan (6.2L engine).
50A***
11
Modified vehicle and stripped chassis run/
start.
40A**
12
Starter solenoid relay.
30A**
13
Run/start relay.
40A**
14
Modified vehicle and stripped chassis
battery.
40A**
15
Auxiliary air conditioning blower.
50A**
16
Trailer tow battery charge.
50A**
17
Trailer tow park feed.
Electric trailer brake.
30A**
18
Trailer brake controller.
Auxiliary switch #1.
30A**
19
Auxiliary switch #2.
30A**
20
Not used.
—
21
Not used.
—
22
Air conditioning clutch relay.
—
23
Horn relay (stripped chassis).
—
24
Run/start relay.
—
25
Alternator battery sense (6.2L engine).
10*
26
Not used.
—
27
Back-up lamp.
20A*
28
Air conditioning clutch.
10A*
29
Brake on/off switch.
10A*
30
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Protected components
Fuse amp rating
Fuse or relay number
Cluster battery (stripped chassis).
10A*
31
Blower motor.
50A**
32
Anti-lock brake system pump.
40A**
33
Stripped chassis horn.
20A**
34
Powertrain control module relay.
40A**
35
Ignition switch (stripped chassis).
20A**
36
Trailer tow left-hand side stop lamp and
direction indicator lamp relay.
—
37
Trailer tow right-hand side stop lamp and
direction indicator lamp relay.
—
38
Back-up lamp relay.
—
39
Blower motor relay.
—
40
Not used.
—
41
Diagnostic connector (stripped chassis).
15A*
42
Fuel pump.
20A*
43
Auxiliary switch #3.
10A*
44
Auxiliary switch #4.
15A*
45
Powertrain control module keep alive
memory power.
10A*
46
Canister vent control valve.
Powertrain control module relay coil.
Anti-lock brake system relay coil.
40A**
47
Trailer tow stop lamp and direction indic-
ator lamps.
20A**
48
Wiper motor.
30A**
49
Not used.
—
50
Cutaway.
20A**
51
Modified vehicle and stripped chassis run/
start relay coil.
10A*
52
Anti-lock brake system run/start feed.
10A*
53
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Protected components
Fuse amp rating
Fuse or relay number
Fuel pump relay coil.
10A*
54
Not used.
—
55
Not used.
—
56
Trailer tow park lamp.
20A*
57
Trailer tow back-up lamp.
15A*
58
Not used.
—
59
One-touch integrated start diode.
—
60
Not used.
—
61
Auxiliary switch #2 relay.
—
62
Trailer tow battery charge.
30A**
63
Not used.
—
64
Power point 2 (glove box).
20A**
65
Power point 3 (cutaway B+).
20A**
66
Power point 1 (instrument panel).
20A**
67
Modified vehicle.
50A**
68
Not used.
—
69
Stripped chassis.
30A**
70
Not used.
—
71
Cigarette lighter/power point.
20A**
72
Not used.
—
73
Power seat.
30A**
74
Vehicle power 1.
20A*
75
Powertrain control module power.
Vehicle power 2.
20A*
76
Powertrain control module emissions
related components.
Vehicle power 3.
10A*
77
Powertrain control module general
components.
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Protected components
Fuse amp rating
Fuse or relay number
Vehicle power 4.
15A*
78
Engine ignition coil relay coil.
Vehicle power 5.
10A*
79
Transmission.
Cluster run/start (stripped chassis).
10A*
80
Not used.
—
81
Not used.
—
82
Fuel pump diode.
—
83
Not used.
—
84
Auxiliary switch #1 relay.
—
85
*Mini fuses.
**A1S fuses.
***Cartridge fuses.
Passenger Compartment Fuse
Panel WARNING
Always disconnect the battery before
servicing high current fuses. Note:
If your vehicle is equipped with dual
batteries, disconnecting the primary
under-hood battery does not remove power
from all circuits.
The fuse panel is located to the left of the
brake pedal and mounted onto the lower
left cowl panel. Remove the fuse panel
cover to access the fuses.
To remove a fuse, use the fuse puller tool
provided on the inside of the fuse panel
cover.
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Protected components
Fuse amp rating
Fuse or relay number
Inverter B+.
30A
1
Not used (spare).
15A
2
Not used (spare).
15A
3
Not used (spare).
30A
4
Passenger compartment fuse panel.
10A
5
Brake-shift interlock.
Direction indicators lamps.
20A
6
Hazard lamps.
Stop lamps.
Left-side headlamp low beam.
10A
7
Right-side headlamp low beam.
10A
8
Courtesy lamps.
15A
9
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Protected components
Fuse amp rating
Fuse or relay number
Switch illumination.
15A
10
Not used (spare).
10A
11
Not used (spare).
7.5A
12
Mirrors.
5A
13
SYNC.
10A
14
Global positioning system module.
Not used (spare).
10A
15
Not used (spare).
15A
16
Door locks.
20A
17
Not used (spare).
20A
18
Not used (spare).
25A
19
Diagnostic connector (except stripped
chassis).
15A
20
Not used (spare).
15A
21
Parking lamps.
15A
22
License plate lamps.
Headlamp high beams.
15A
23
Horn (except stripped chassis).
20A
24
Demand lighting.
10A
25
Cluster (except stripped chassis).
10A
26
Ignition switch feed.
20A
27
Audio mute (start).
5A
28
Cluster (except stripped chassis).
5A
29
Not used (spare).
5A
30
Not used (spare).
10A
31
Restraints module.
10A
32
Trailer brake controller.
10A
33
Not used (spare).
5A
34
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Protected components
Fuse amp rating
Fuse or relay number
Cutaway run/start.
10A
35
Passive anti-theft system radio frequency
module.
5A
36
Climate control.
10A
37
Stripped chassis #1 run/start.
Not used (spare).
20A
38
Radio.
20A
39
Not used (spare).
20A
40
Radio.
15A
41
Switch illumination.
Automatic dimming rear view mirror.
Power inverter.
Auxiliary switch.
10A
42
Stripped chassis instrument panel
connector #1.
10A
43
Trailer tow battery charge relay.
10A
44
Wipers.
5A
45
Stripped chassis engine connector 3.
Passenger airbag deactivation indicator.
7.5A
46
Windows accessory delay circuit breaker.
30A
47
Delayed accessory relay.
—
48
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. 132
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The auxiliary switch option package
provides four switches, mounted in the
center of the instrument panel. These
switches operate only when you switch the
ignition on, whether the engine is running
or not. Ford recommends, however, that
the engine remain running to maintain
battery charge when using the auxiliary
switches for extended periods of time or
higher current draws.
When switched on, the auxiliary switches
provide 10 amps, 15 amps or 30 amps of
electrical battery power for a variety of
personal or commercial uses.
The switches include the fuse and relay kit.
This kit contains the required fuses and
relays that an authorized technician needs
to install into the power distribution box,
located under the hood. Refer to the
instruction sketch included in the kit.
Contact an authorized dealer for service.
Each switch includes a power lead (a
blunt-cut and sealed wire) located in the
underhood cowl shield above the engine
block powertrain control module.
The power leads are coded as follows: Fuse
Amp
Rating
Wire
Color
Circuit
Number
Switch
30A
Yellow
CAC05
AUX 1
30A
Green
with
Brown Trace
CAC06
AUX 2
10A
Violet
with
Green Trace
CAC07
AUX 3
15A
Brown
CAC08
AUX 4
Learn more about auxiliary switches by
visiting
https://www.fleet.ford.com/truckbbas/.
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