2018 FORD TRANSIT relay

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 181).
Your vehicle may have electrical
items, such as fuses or relays,
related to towing. See
Fuses
(page 208).
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
174).
You can also find information in
the
RV & Trailer Towing Guide
available at your authorized
dealer, or online.
180
2018 Transit (TTH) Canada/United States of America, JK3J 19A321 AA enUSA, Edition date: 201705, Third-Printing- Towing

Protected Component
Fuse Rating
Fuse Number
Diesel particulate filter vaporizer.
3 A
F5
Glow plug monitor.
Not used.
-
F6
Automatic transmission module.
7.5 A
F7
Not used.
-
F8
Not used.
-
F9
Power step.
30 A
F10
Heated seats.
Air conditioning clutch.
10 A
F11
Diesel particulate filter vaporizer glow plug.
20 A
F12
Not used.
-
F13
Selective catalytic reduction system.
3 A
F14
Not used.
-
F15
Fuel pump relay.
10 A
F16
Automatic transmission module.
15 A
F17
Fuel pump relay.
30 A
F18
Automatic transmission module.
Starter motor solenoid.
30 A
F19
Glow plugs.
60 A
F20
Ignition relay 3.
60 A
F21
Selective catalytic reduction system.
40 A
F22 Not used.
-
Spare.
10 A
F23
Not used.
-
F24
Spare.
10 A
F25
Spare.
20 A
F26
Not used.
-
F27
Crankcase pressure sensor.
7.5 A
F28
210
2018 Transit (TTH) Canada/United States of America, JK3J 19A321 AA enUSA, Edition date: 201705, Third-Printing- Fuses

Protected Component
Fuse Rating
Fuse Number
Not used.
-
F29 Positive crankcase ventilation valve heater element.
7.5 A
Cooling fan.
60 A
F30 Not used.
-
Not used.
-
F31
Windshield wiper motor.
30 A
F32
Not used.
-
F33
Not used.
-
F34
Powertrain control module.
15 A
F35
Particulate matter sensor.
15 A
F36 Selective catalytic reduction system.
Nitrogen oxides sensor.
Fuel volume control valve.
7.5 A
F37
Not used.
-
F38 Air conditioning clutch.
7.5 A
Exhaust gas temperature sensor.
15 A
F39 Fuel vaporizer system fuel pump.
Coolant bypass solenoid valve.
Low-speed cooling fan.
High-speed cooling fan. Protected Component
Relay Number
Ignition relay 3.
R1
Not used.
R2
Not used.
R3
Not used.
R4
Not used.
R5
Windshield wiper on/off relay.
R6
Windshield wiper high/low speed relay.
R7
211
2018 Transit (TTH) Canada/United States of America, JK3J 19A321 AA enUSA, Edition date: 201705, Third-Printing- Fuses

Protected Component
Relay Number
Not used.
R8
Starter motor.
R9
Air conditioning clutch.
R10
Fuel vaporizer system glow plug.
R11
Fuel injection pump.
R12
Not used.
R13
Not used.
R14
Low-speed and high-speed cooling fan relay.
R15
Selective catalytic reduction system.
R16
Powertrain control module.
R17
High-speed cooling fan.
R18
Passenger Compartment Fuse Box 212
2018 Transit (TTH) Canada/United States of America, JK3J 19A321 AA enUSA, Edition date: 201705, Third-Printing- FusesE148827

Protected Component
Fuse Rating
Fuse Number
Restraints control module.
10 A
F1
Anti-lock brake system with electronic stability
control.
4 A
F2
Parking brake.
Interior lighting.
7.5 A
F3
Power point relay control.
Trailer tow reversing lamp relay.
10 A
F4
Modified vehicle connections.
20 A
F5
Not used.
-
F6
Battery saver relay.
10 A
F7
Direct current/alternating current inverter.
40 A
F8
Trailer brake control module.
30 A
F9
Driver power seat.
30 A
F10
Passenger power seat.
30 A
F11
Trailer lamps.
30 A
F12
Anti-lock brake system with electronic stability
control.
25 A
F13
Powertrain control module.
5 A
F14
Powertrain control module relay.
40 A
F15
Body control module.
40 A
F16
Anti-lock brake system.
40 A
F17
Modified vehicle connections.
40 A
F18
Trailer module.
5 A
F19
Heated exterior mirror relay.
5 A
F20 Heated rear window.
Direct current/alternating current inverter.
Modified vehicle connections.
10 A
F21
Not used.
-
F22
Air conditioning control module.
7.5 A
F23
213
2018 Transit (TTH) Canada/United States of America, JK3J 19A321 AA enUSA, Edition date: 201705, Third-Printing- Fuses

Protected Component
Fuse Rating
Fuse Number
Modified vehicle connections.
10 A
F24
Body control module.
15 A
F25
Heated exterior mirrors.
10 A
F26
Heated rear window.
20 A
F27
Heated rear window.
20 A
F28
Rear parking aid camera.
10 A
F29 Lane keeping system.
Interior rear view mirror.
Not used.
-
F30
Trailer brake ignition feed.
10 A
F31
Interior lighting.
10 A
F32
Driver heated seat.
10 A
F33
Passenger heated seat.
10 A
F34
Exterior mirrors.
5 A
F35
Driver door window control switch.
Horn.
20 A
F36
SYNC module.
7.5 A
F37
Global positioning system module.
Blower motor relay.
5 A
F38 Horn relay.
Windshield wiper relay.
Remote keyless entry.
7.5 A
F39 Rear heating, ventilation and air conditioning.
Trailer tow backup relay coil.
Parking lamp.
Front blower motor.
40 A
F40
Rear blower motor.
40 A
F41
Heated rear window.
40 A
F42
Trailer socket.
30 A
F43
Trailer tow module.
Auxiliary power points.
60 A
F44
214
2018 Transit (TTH) Canada/United States of America, JK3J 19A321 AA enUSA, Edition date: 201705, Third-Printing- Fuses

Protected Component
Fuse Rating
Fuse Number
Trailer tow module.
40 A
F45
Power windows.
30 A
F46
Cigar lighter socket.
20 A
F47
Rear auxiliary power points.
20 A
F48
Front auxiliary power points.
20 A
F49
Ignition relay 1.
60 A
F50
Power step.
60 A
F51
Heated seats.
Modified vehicle connections.
40 A
F52
Modified vehicle connections.
40 A
F53 Protected Component
Relay Number
Spare.
R1
Auxiliary power points.
R2
Trailer lamps.
R3
Not used.
R4
Power windows.
R5
Ignition relay 1.
R6
Horn.
R7
Trailer tow reversing lamp.
R8
Front blower motor.
R9
Rear blower motor.
R10
Heated rear window.
R11 Heated exterior mirrors.
Heated seats.
R12
Modified vehicle connections.
R13
215
2018 Transit (TTH) Canada/United States of America, JK3J 19A321 AA enUSA, Edition date: 201705, Third-Printing- Fuses

Protected Component
Fuse Rating
Fuse Number
Not used.
-
F5
Not used.
-
F6
Automatic transmission module.
7.5 A
F7
Cooling fan.
30 A
F8
Not used.
-
F9
Power step.
30 A
F10
Heated seats.
Air conditioning clutch.
10 A
F11
Not used.
-
F12
Not used.
-
F13
Not used.
-
F14
Not used.
-
F15
Fuel pump relay.
20 A
F16
Not used.
-
F17
Anti-lock brake system.
30 A
F18
Fuel pump relay.
Starter motor solenoid.
30 A
F19
Not used.
-
F20
Ignition relay 3.
60 A
F21
Selective catalytic reduction system catalyst.
40 A
F22
Brake vacuum pump relay.
Spare.
10 A
F23
Not used.
-
F24
Spare.
10 A
F25
Spare.
20 A
F26
Not used.
-
F27
Not used.
-
F28
Audio unit.
3 A
F29
219
2018 Transit (TTH) Canada/United States of America, JK3J 19A321 AA enUSA, Edition date: 201705, Third-Printing- Fuses