2021 FORD E SERIES brake

wiring. Consult your trailer dealer for
assistance. This can be a short to ground
(such as a chaffed wire), short to voltage
(such as a pulled pin on trailer emergency
breakaway battery) or the trailer brakes
may be drawing too much current.
Points to Remember
Note:
Do not attempt removal of the trailer
brake controller without consulting the
Workshop Manual. Damage to the unit may
result.
• Adjust gain setting before using the
trailer brake controller for the first time.
• Adjust gain setting, using the procedure
above, whenever road, weather and
trailer or vehicle loading conditions
change from when the gain was initially
set.
• Only use the manual control lever for
proper adjustment of the gain during
trailer setup. Misuse, such as
application during trailer sway, could
cause instability of trailer or tow
vehicle.
• Avoid towing in adverse weather
conditions. The trailer brake controller
does not provide anti-lock control of
the trailer wheels. Trailer wheels can
lock up on slippery surfaces, resulting
in reduced stability of trailer and tow
vehicle.
• The trailer brake controller is equipped
with a feature that reduces output at
vehicle speeds below 11 mph (18 km/h)
so trailer and vehicle braking is not jerky
or harsh. This feature is only available
when applying the brakes using your
vehicle's brake pedal, not the
controller.
• The controller interacts with the brake
control system and powertrain control
system of your vehicle to provide the
best performance on different road
conditions. •
Your vehicle's brake system and the
trailer brake system work
independently of each other. Changing
the gain setting on the controller does
not affect the operation of your
vehicle's brakes whether you attach a
trailer or not.
• When you switch the engine off, the
controller output is disabled and the
display and module shut down. The
controller module and display turn on
when you switch the ignition on.
• The trailer brake controller is only a
factory-installed or dealer-installed
item. Ford is not responsible for
warranty or performance of the
controller due to misuse or customer
installation.
Trailer Lamps WARNING: Never connect any
trailer lamp wiring to the vehicle's tail
lamp wiring; this may damage the
electrical system resulting in fire. Contact
your authorized dealer as soon as
possible for assistance in proper trailer
tow wiring installation. Additional
electrical equipment may be required.
Trailer lamps are required on most towed
vehicles. Make sure all running lights, brake
lights, direction indicators and hazard lights
are working.
Before Towing a Trailer
Practice turning, stopping and backing up
to get the feel of your vehicle-trailer
combination before starting on a trip.
When turning, make wider turns so the
trailer wheels clear curbs and other
obstacles.
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When Towing a Trailer
•
Do not drive faster than 70 mph
(113 km/h) during the first 500 mi
(800 km).
• Do not make full-throttle starts.
• Check your hitch, electrical connections
and trailer wheel lug nuts thoroughly
after you have traveled 50 mi (80 km).
• When stopped in congested or heavy
traffic during hot weather, place the
gearshift in position P to aid engine and
transmission cooling and to help A/C
performance.
• Switch off the speed control with
heavy loads or in hilly terrain. The
speed control may turn off
automatically when you are towing on
long, steep grades.
• Shift to a lower gear when driving down
a long or steep hill. Do not apply the
brakes continuously, as they may
overheat and become less effective.
• If your transmission is equipped with a
Grade Assist or Tow/Haul feature, use
this feature when towing. This provides
engine braking and helps eliminate
excessive transmission shifting for
optimum fuel economy and
transmission cooling.
• If your vehicle is equipped with
AdvanceTrac with RSC, this system
may turn on during typical cornering
maneuvers with a heavily loaded trailer.
This is normal. Turning the corner at a
slower speed while towing may reduce
this tendency.
• If you are towing a trailer frequently in
hot weather, hilly conditions, at the
gross combined weight rating (or any
combination of these factors), consider
refilling your rear axle with synthetic
gear lubricant. See
Capacities and
Specifications (page 219). •
Allow more distance for stopping with
a trailer attached. Anticipate stops and
brake gradually.
• Avoid parking on a grade. However, if
you must park on a grade:
1. Turn the steering wheel to point your vehicle tires away from traffic flow.
2. Set your vehicle parking brake.
3. Place the automatic transmission in position
P.
4. Place wheel chocks in front and back of the trailer wheels. (Chocks not
included with vehicle.)
Your vehicle may be equipped with a
temporary or conventional spare tire. A
"temporary" spare tire is different in size
(diameter or width), tread-type
(All-Season or All Terrain) or is from a
different manufacturer than the road tires
on your vehicle. Consult information on the
tire label or Safety Compliance label for
limitations when using.
Launching or Retrieving a Boat or
Personal Watercraft (PWC)
Note: Disconnect the wiring to the trailer
before
backing the trailer into the water.
Note: Reconnect the wiring to the trailer
after
removing the trailer from the water.
When backing down a ramp during boat
launching or retrieval:
• Do not allow the static water level to
rise above the bottom edge of the rear
bumper.
• Do not allow waves to break higher
than
6 in (15 cm) above the bottom
edge of the rear bumper.
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•
Reduce the use of air conditioning and
heat.
• Avoid using speed control in hilly
terrain.
• Do not rest your foot on the brake
pedal while driving.
• Avoid carrying unnecessary weight.
• Avoid adding particular accessories to
your vehicle (e.g. bug deflectors,
rollbars/light bars, running boards, ski
racks).
• Avoid driving with the wheels out of
alignment.
DRIVING THROUGH WATER WARNING: Do not drive through
flowing or deep water as you may lose
control of your vehicle.
Note: Driving through standing water can
cause vehicle damage.
Note: Engine damage can occur if water
enters the air filter.
Before driving through standing water,
check the depth. Never drive through water
that is higher than the bottom of the wheel
hubs. When driving through standing water, drive
very slowly and do not stop your vehicle.
Your brake performance and traction may
be limited. After driving through water and
as soon as it is safe to do so:
•
Lightly press the brake pedal to dry the
brakes and to check that they work.
• Check that the horn works.
• Check that the exterior lights work.
• Turn the steering wheel to check that
the steering power assist works.
FLOOR MATS WARNING:
Use a floor mat
designed to fit the footwell of your
vehicle that does not obstruct the pedal
area. Failure to follow this instruction
could result in the loss of control of your
vehicle, personal injury or death. WARNING:
Pedals that cannot
move freely can cause loss of vehicle
control and increase the risk of serious
personal injury. WARNING:
Secure the floor mat
to both retention devices so that it
cannot slip out of position and interfere
with the pedals. Failure to follow this
instruction could result in the loss of
control of your vehicle, personal injury or
death. WARNING: Do not place additional
floor mats or any other covering on top
of the original floor mats. This could
result in the floor mat interfering with the
operation of the pedals. Failure to follow
this instruction could result in the loss of
control of your vehicle, personal injury or
death.
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E-Series (TE4) Canada/United States of America, enUSA, Edition date: 201910, First-Printing Driving HintsE176913

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 (spare).
20 A
5
Upfitter relay 4 (cutaway).
20 A
6
Not used (spare) (stripped chassis).
Not used.
—
8
Not used.
—
10
Power point 4.
20 A
12
Yaw sensor (stripped chassis).
10 A
13
Not used (spare) (cutaway).
Forward looking radar (cutaway).
10 A
14
Not used (spare) (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.
30 A
20
Not used.
—
21
Wiper module (stripped chassis).
10 A
22
Not used (spare) (cutaway).
Not used.
—
23
Body control module - run power in feed 2.
40 A
24
Body control module - run power in feed 1.
50 A
25
Not used.
—
26
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E-Series (TE4) Canada/United States of America, enUSA, Edition date: 201910, First-Printing Fuses

Protected Component
Fuse
Rating
Fuse
Number
Body builder frame connector.
20 A
27
Not used.
—
28
B+ power 12 V(special order vehicle).
10 A
29
Power driver seat (cutaway).
30 A
30
Not used (spare) (stripped chassis).
Not used.
—
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
Washer relay (stripped chassis).
10 A
38
Not used (spare) (cutaway).
Not used.
—
39
Trailer brake control connector.
30 A
41
Instrument panel connector (stripped chassis).
30 A
43
Not used (spare) (cutaway).
Not used.
—
45
A/C clutch.
10 A
46
Upfitter relay 1 (cutaway).
40 A
47
Not used (spare) (stripped chassis).
Not used.
—
48
Pump electronics module.
30 A
49
Injectors.
15 A
50
Power point 1.
20 A
51
B-pillar vehicle connector (cutaway).
50 A
52
Not used (spare) (stripped chassis).
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E-Series (TE4) Canada/United States of America, enUSA, Edition date: 201910, First-Printing Fuses

Protected Component
Fuse
Rating
Fuse
Number
Trailer tow park lamps.
30 A
53
Upfitter 2 relay (cutaway).
40 A
54
Not used (spare) (stripped chassis).
Upfitter 3 relay (cutaway).
20 A
55
Not used (spare) (stripped chassis).
Power point 2 prep B-pillar connector.
20 A
56
USB smart charger.
5 A
58
Park lamps 1 (special order vehicle).
10 A
59
Not used.
—
60
Not used.
—
61
Not used.
—
62
Not used.
—
63
Not used.
—
64
Not used.
—
65
Not used.
—
66
Not used.
—
67
Not used.
—
69
Inverter.
40 A
70
Anti-lock brake system valves.
30 A
71
Brake on and off switch.
10 A
72
Not used.
—
73
Not used.
—
74
Not used.
—
75
Anti-lock brake system pump.
60 A
76
Voltage quality module power - body control module.
30 A
77
Trailer tow stop lamps.
10 A
78
Not used.
—
79
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E-Series (TE4) Canada/United States of America, enUSA, Edition date: 201910, First-Printing Fuses

Protected Component
Fuse
Rating
Fuse
Number
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
Passenger Compartment Fuse Box WARNING: Always disconnect the
battery before servicing high current
fuses.
Note: If your vehicle has dual batteries,
disconnecting the primary under hood
battery does not remove power from all
circuits. The fuse panel is to the left-hand side of
the brake pedal and mounted onto the
lower left-hand 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.
Replace fuses with the same type and
rating. See
Changing a Fuse (page 159).
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E-Series (TE4) Canada/United States of America, enUSA, Edition date: 201910, First-Printing Fuses

Protected Component
Fuse
Rating
Fuse
Number
Not used.
—
1
Left-hand front and right-hand front door lock switch (cutaway).
10 A
2
Inverter (cutaway).
Connector (stripped chassis).
Power mirror switch (cutaway).
7.5 A
3
Not used (stripped chassis).
—
Trailer brake control.
20 A
4
Not used (spare).
20 A
5
Not used (spare).
10 A
6
Not used (spare).
10 A
7
Not used (spare).
10 A
8
Not used (spare).
10 A
9
Not used.
—
10
Not used.
—
11
Smart datalink connector.
7.5 A
12
157
E-Series (TE4) Canada/United States of America, enUSA, Edition date: 201910, First-Printing FusesE145984