2018 FORD FLEX brake

Protected Components
Fuse Amp Rating
Fuse or Relay
Number
Rear window defroster.
40A 1
26
Heated mirrors.
Cargo power point.
20A 1
27
Front heated and cooled seats.
30A 1
28
Front heated seats (without cooled seats).
20A 1
29
Rear heated seats.
20A 1
30
Electric fan relay 3.
25A 1
31
Auxiliary blower motor relay.
Relay
32
Cooling fan #1 relay.
Relay
33
Front blower motor relay.
Relay
34
Cooling fan (series) relay.
Relay
35
Not used.
-
36
Trailer tow right-hand stop/turn lamps
relay.
Relay
37
Trailer tow reverse lamps relay.
Relay
38
Auxiliary blower motor.
30A 1
39
Not used.
-
40
Not used.
-
41
Passenger power seat.
30A 1
42
Anti-lock brake system valves.
20A 1
43
Windshield washer relay.
Relay
44
Rain sensor.
5A 2
45
Canister vent solenoid (EcoBoost engines).
5A 2
46
Washer pump.
15A 2
47
236
Flex (TP3) , enUSA, Edition date: 201801, Second Printing Fuses

Protected Components
Fuse Amp Rating
Fuse or Relay
Number
Front park lamps.
10A 2
48
Not used.
-
49
Heated mirrors.
10A 2
50
Not used.
-
51
Not used.
-
52
Trailer tow left-hand stop/turn lamps relay.
Relay
53
Not used.
-
54
Wiper relay.
Relay
55
Fuel injectors.
30A 2
56
Fuel pump relay.
Left-hand high intensity discharge head-
lamp.
20A 2
57
Alternator sensor.
10A 2
58
Brake on/off switch.
10A 2
59
Trailer tow back-up lamps.
10A 2
60
Not used.
-
61
A/C clutch relay.
10A 2
62
Trailer tow stop/turn lamps.
15A 2
63
Rear wipers.
15A 2
64
Not used.
-
65
Powertrain control module – vehicle power
relay.
Relay
66
Vehicle power #2 – oxygen sensor heater.
20A 2
67
Mass airflow sensor.
Variable camshaft timing solenoid valve.
Canister vent solenoid.
Canister purge solenoid.
237
Flex (TP3) , enUSA, Edition date: 201801, Second Printing Fuses

Protected Components
Fuse Amp Rating
Fuse or Relay
Number
Canister vent solenoid (non-EcoBoost
engines).
Run/start relay.
5A 2
87
Run/start relay.
Relay
88
Anti–lock brake system module.
10A 2
89
Powertrain control module run/start.
10A 2
90
Adaptive cruise control module.
10A 2
91
Front blower relay coil.
5A 2
92
Power steering module.
Auxiliary blower motor.
5A 2
93
Rear window defroster relay power.
Battery charge relay.
Body control module run/start.
30A 1
94
Front passenger window switch.
5A 2
95
Not used.
-
96
Not used.
-
97
A/C clutch relay.
Relay
98
1 J Case Low Profile fuse.
2 Mini fuse.
Passenger Compartment Fuse
Panel
The fuse panel is under the instrument
panel to the left of the steering wheel. You
may need to remove a trim panel to access
it.
239
Flex (TP3) , enUSA, Edition date: 201801, Second Printing Fuses

Protected Components
Fuse Amp Rating
Fuse or Relay
Number
SYNC module.
10A
9
Electronic finish panel.
Radio frequency transceiver module.
Run accessory relay.
10A
10
Front wiper motor relay.
Intelligent access module logic.
10A
11
Heads-up display.
Puddle lamp.
15A
12
Backlighting LED.
Interior lighting.
Right-hand direction indicators.
15A
13
Left-hand direction indicators.
15A
14
Center high mounted stop lamp.
15A
15
Backup lamp.
Right low beam headlamp.
10A
16
Left low beam headlamp.
10A
17
Third row power seats.
10A
18
Start button.
Keypad illumination.
Brake-shift interlock.
Powertrain control module wake-up.
Anti-theft system.
Not used (spare).
20A
19
Locks.
20A
20
Extended power module.
10A
21
Horn relay.
20A
22
Steering wheel control module logic.
15A
23
Instrument cluster.
Steering wheel control module.
15A
24
Datalink.
Liftgate release.
15A
25
Ignition switch.
5A
26
241
Flex (TP3) , enUSA, Edition date: 201801, Second Printing Fuses

Protected Components
Fuse Amp Rating
Fuse or Relay
Number
Push button ignition switch.
Intelligent access module power.
20A
27
Not used (spare).
15A
28
Radio.
20A
29
Global positioning system module.
Front park lamps.
15A
30
Trailer tow relay for park lamps.
Front side markers.
Trailer tow brake controller.
5A
31
Smart window motors.
15A
32
Master window and mirror switch.
Lock switch illumination.
Moonroof.
110V AC power point.
Interior rearview mirror.
Not used (spare).
10A
33
Reverse park aid module.
10A
34
Rear heated seat module.
Blind spot monitor module.
Rear video camera.
Interior mirror.
Climate control humidity sensor.
5A
35
Heads-up display.
Heated steering wheel.
10A
36
Refrigerator.
10A
37
Front passenger window switch.
10A
38
High beams.
15A
39
Rear park lamps.
10A
40
License plate lamps.
Extended power module.
7.5A
41
Not used (spare).
5A
42
Not used (spare).
10A
43
242
Flex (TP3) , enUSA, Edition date: 201801, Second Printing Fuses

GENERAL INFORMATION
Have your vehicle serviced regularly to help
maintain its roadworthiness and resale
value. There is a large network of
authorized dealers that are there to help
you with their professional servicing
expertise. We believe that their specially
trained technicians are best qualified to
service your vehicle properly and expertly.
They are supported by a wide range of
highly specialized tools developed
specifically for servicing your vehicle.
If your vehicle requires professional service,
an authorized dealer can provide the
necessary parts and service. Check your
warranty information to find out which
parts and services are covered.
Use only recommended fuels, lubricants,
fluids and service parts conforming to
specifications. Motorcraft® parts are
designed and built to provide the best
performance in your vehicle.
Precautions
•
Do not work on a hot engine.
• Make sure that nothing gets caught in
moving parts.
• Do not work on a vehicle with the
engine running in an enclosed space,
unless you are sure you have enough
ventilation.
• Keep all open flames and other burning
material (such as cigarettes) away
from the battery and all fuel related
parts.
Working with the Engine Off
1. Set the parking brake and shift to park
(P).
2. Switch off the engine.
3. Block the wheels. Working with the Engine On WARNING
To reduce the risk of vehicle damage
and/or personal burn injuries, do not
start your engine with the air cleaner
removed and do not remove it while the
engine is running. 1.
Set the parking brake and shift to park
(P).
2. Block the wheels.
OPENING AND CLOSING THE
HOOD
Opening the Hood 1.
Inside the vehicle, pull the hood release
handle located under the left-hand
side of the instrument panel.
2. Slightly lift the hood.
245
Flex (TP3) , enUSA, Edition date: 201801, Second Printing MaintenanceE253246

Engine coolant reservoir. See
Engine Coolant Check (page
250).
A
Windshield washer fluid
reservoir. See
Washer Fluid
Check (page 257).
B
Brake fluid reservoir. See
Brake
Fluid Check (page 256).
C
Battery. See
Changing the 12V
Battery (page 257).
D
Engine compartment fuse box.
See
Fuse Specification Chart
(page 234).
E Air filter assembly. See
Changing the Engine Air Filter
(page
267).
F
Automatic transmission fluid
dipstick. See
Automatic
Transmission Fluid Check
(page
254).
G
Engine oil dipstick. See
Engine
Oil Dipstick (page 249).
H
Engine oil filler cap. See Engine
Oil Check
(page 249).
I
UNDER HOOD OVERVIEW - 3.5L ECOBOOST™ 247
Flex (TP3) , enUSA, Edition date: 201801, Second Printing MaintenanceE253238

Engine coolant reservoir. See
Engine Coolant Check (page
250).
A.
Engine oil filler cap. See Engine
Oil Check
(page 249).
B.
Engine oil dipstick. See
Engine
Oil Dipstick (page 249).
C.
Brake fluid reservoir. See
Brake
Fluid Check (page 256).
D.
Battery. See
Changing the 12V
Battery (page 257).
E.
Engine compartment fuse box.
See
Fuses (page 234).
F.
Air filter assembly. See
Changing the Engine Air Filter
(page
267).
G. Automatic transmission dipstick.
See
Automatic Transmission
Fluid Check (page 254).
H.
Washer fluid reservoir. See
Washer Fluid Check (page 257).
I.
248
Flex (TP3) , enUSA, Edition date: 201801, Second Printing MaintenanceE173375