2018 FORD TRANSIT Air conditioning

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

Protected Component
Fuse Rating
Fuse Number
Cooling fan.
40 A
F30
Cooling fan.
40 A
F31
Windshield wiper motor.
30 A
F32
Not used.
-
F33
Not used.
-
F34
Powertrain control module.
20 A
F35
Mass air flow sensor.
20 A
F36
Not used.
-
F37
Air conditioning clutch.
20 A
F38
Exhaust gas temperature sensor -3.7L.
7.5 A
F39 Fuel vaporizer system fuel pump -3.7L.
Coolant bypass solenoid valve -3.7L.
Low-speed cooling fan -3.7L.
High-speed cooling fan -3.7L.
Exhaust gas temperature sensor - 3.5L Ecoboost.
10 A Fuel vaporizer system fuel pump - 3.5L Ecoboost.
Coolant bypass solenoid valve - 3.5L Ecoboost.
Low-speed cooling fan - 3.5L Ecoboost.
High-speed cooling fan - 3.5L Ecoboost. Protected Component
Relay Number
Ignition relay 3.
R1
Not used.
R2
Not used.
R3
Not used.
R4
Cooling fan.
R5
Windshield wiper on/off relay.
R6
Windshield wiper high/low speed relay.
R7
Brake vacuum pump.
R8
Starter motor.
R9
220
2018 Transit (TTH) Canada/United States of America, JK3J 19A321 AA enUSA, Edition date: 201705, Third-Printing- Fuses

Protected Component
Relay Number
Air conditioning clutch.
R10
Not used.
R11
Fuel injection pump.
R12
Not used.
R13
Not used.
R14
Low-speed and high-speed cooling fan relay.
R15
Not used.
R16
Powertrain control module.
R17
High-speed cooling fan.
R18
Passenger Compartment Fuse Box 221
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
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.
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
222
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
223
2018 Transit (TTH) Canada/United States of America, JK3J 19A321 AA enUSA, Edition date: 201705, Third-Printing- Fuses

Coolant Change
At specific mileage intervals, as listed in
the scheduled maintenance information,
the coolant should be changed. Add
prediluted coolant approved to the correct
specification. See Capacities and
Specifications (page 305).
Fail-Safe Cooling
Fail-safe cooling allows you to temporarily
drive your vehicle before any incremental
component damage occurs. The fail-safe
distance depends on ambient
temperature, vehicle load and terrain.
How Fail-Safe Cooling Works If the engine begins to overheat,
the coolant temperature gauge
moves toward the red zone:
A warning lamp illuminates and
a message may appear in the
information display.
If the engine reaches a preset
over-temperature condition, the engine
automatically switches to alternating
cylinder operation. Each disabled cylinder
acts as an air pump and cools the engine.
When this occurs, your vehicle still
operates, however:
• Engine power is limited.
• The air conditioning system turns off.
Continued operation increases the engine
temperature, causing the engine to
completely shut down. Your steering and
braking effort increases in this situation.
When the engine temperature cools, you
can re-start the engine. Have your vehicle
checked as soon as possible to minimize
engine damage. When Fail-Safe Mode Is Activated WARNING:
Fail-safe mode is for use
during emergencies only. Operate your
vehicle in fail-safe mode only as long as
necessary to bring your vehicle to rest in a
safe location and seek immediate repairs.
When in fail-safe mode, your vehicle will
have limited power, will not be able to
maintain high-speed operation, and may
completely shut down without warning,
potentially losing engine power, power
steering assist, and power brake assist,
which may increase the possibility of a
crash resulting in serious injury. WARNING:
Do not remove the
coolant reservoir cap when the cooling
system is hot. Wait 10 minutes for the
cooling system to cool down. Cover the
coolant reservoir cap with a thick cloth to
prevent the possibility of scalding and
slowly remove the cap. Failure to follow
this instruction could result in personal
injury.
Your vehicle has limited engine power
when in the fail-safe mode, drive your
vehicle with caution. Your vehicle does not
maintain high-speed operation and the
engine may operate poorly.
Remember that the engine is capable of
automatically shutting down to prevent
engine damage. In this situation:
1. Pull off the road as soon as safely possible and switch the engine off.
2. If you are a member of a roadside assistance program, we recommend
that you contact your roadside
assistance service provider.
3. If this is not possible, wait a short period for the engine to cool.
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2018 Transit (TTH) Canada/United States of America, JK3J 19A321 AA enUSA, Edition date: 201705, Third-Printing- Maintenance

4. Check the coolant level. If the coolant
level is at or below the minimum mark,
add prediluted coolant immediately.
5. When the engine temperature cools, you can re-start the engine. Have your
vehicle checked as soon as possible to
minimize engine damage.
Note: Driving your vehicle without repair
increases the chance of engine damage.
Engine Coolant Temperature
Management (If Equipped) WARNING:
To reduce the risk of
crash and injury, be prepared that the
vehicle speed may reduce and the vehicle
may not be able to accelerate with full
power until the coolant temperature
reduces.
If you tow a trailer with your vehicle, the
engine may temporarily reach a higher
temperature during severe operating
conditions, for example ascending a long
or steep grade in high ambient
temperatures.
At this time, you may notice the coolant
temperature gauge moves toward the red
zone and a message may appear in the
information display.
You may notice a reduction in vehicle
speed caused by reduced engine power in
order to manage the engine coolant
temperature. Your vehicle may enter this
mode if certain high-temperature and
high-load conditions take place. The
amount of speed reduction depends on
vehicle loading, grade and ambient
temperature. If this occurs, there is no
need to stop your vehicle. You can
continue to drive. The air conditioning may automatically
turn on and off during severe operating
conditions to protect the engine from
overheating. When the coolant
temperature decreases to the normal
operating temperature, the air conditioning
turns on.
If the coolant temperature gauge moves
fully into the red zone, or if the coolant
temperature warning or service engine
soon messages appear in your information
display, do the following:
1. Stop your vehicle as soon as it is safe
to do so. Fully apply the parking brake,
shift into park (P) or neutral (N).
2. Leave the engine running until the coolant temperature gauge needle
returns to the normal position. After
several minutes, if the temperature
does not drop, follow the remaining
steps.
3. Switch the engine off and wait for it to
cool. Check the coolant level.
4. If the coolant level is at or below the minimum mark, add prediluted coolant
immediately.
5. If the coolant level is normal, restart the engine and continue.
AUTOMATIC TRANSMISSION
FLUID CHECK
The automatic transmission does not have
a transmission fluid dipstick.
Have an authorized dealer check and
change the transmission fluid at the
correct service interval. See
Scheduled
Maintenance (page 459). Your
transmission does not consume fluid.
However, if the transmission slips, shifts
slowly or if you notice a sign of leaking
fluid, contact an authorized dealer.
240
2018 Transit (TTH) Canada/United States of America, JK3J 19A321 AA enUSA, Edition date: 201705, Third-Printing- Maintenance

Drives the air conditioning
compressor and has one idler
pulley.
A
Drives the water pump and the
alternator and has one idler
pulley.
B
259
2018 Transit (TTH) Canada/United States of America, JK3J 19A321 AA enUSA, Edition date: 201705, Third-Printing- MaintenanceE251184
A
B