FORD MUSTANG 2021 Owners Manual

Protected Component
Fuse Rating
Fuse or Relay
Number
Right-hand high-intensity discharge head-
lamps (GT500).
20A 3
35
Not used (base).
—
Alternator sense.
10A 3
36
Not used.
—
37
Vehicle power 1.
20A 3
38
Not used.
—
39
Vehicle power 2.
20A 3
40
Fuel injectors.
15A 3
41
Vehicle power 3.
15A 3
42
Not used.
—
43
Vehicle power 4 (base).
15A 3
44 Vehicle power 4 (GT500).
30A 3
Not used.
—
45
Differential pump (Mach 1, GT500).
20A 2
46
Not used (base).
—
Not used.
—
47
Fuel pump #2 (GT500).
30A 2
48
Not used (base).
—
Fuel pump.
30A 2
49
Steering column lock relay.
—
50
Not used.
—
51
Horn relay.
—
52
Cigar lighter.
20A 2
53
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Fuses

Protected Component
Fuse Rating
Fuse or Relay
Number
Auxiliary power point.
20A 2
54
Electronic fan 2 (base).
25A 2
55
Not used (GT500).
—
Not used.
—
56
Air conditioning clutch relay.
—
57
Not used.
—
58
Exhaust valves relay.
—
59
Powertrain control module.
5A 3
60
Not used.
—
61
Anti-lock brakes run/start switch.
5A 3
62
Not used.
—
63
Electronic power assist steering.
5A 3
64
Not used.
—
65
Blind spot information system.
5A 3
66 Rear view camera.
Rear window defroster relay coils.
Vehicle dynamics module.
Not used.
—
67
Headlamp leveling switch (base).
10A 3
68
Signature lighting (GT500).
10A 3
Cigar lighter relay.
—
69
Auxiliary power point relay.
Mass air flow sensor (base).
5A 3
74
Not used (GT500).
—
Rain sensor module (base).
5A 3
75
249
Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Fuses

Protected Component
Fuse Rating
Fuse or Relay
Number
Not used (GT500).
—
Rear window defroster relay.
—
76
Electronic cooling fan 2 relay (base).
—
77
Not used (GT500).
—
Run/start relay (base).
—
78
Not used (GT500).
—
Charge air cooler pump relay (GT500).
—
79
Not used (base).
—
Windshield wiper relay.
—
80
Starter motor solenoid relay.
—
81
Powertrain control module relay.
—
82
Cooling fan relay (GT500).
—
83
Not used (base).
—
Heated exterior mirrors.
10A 3
87
Not used.
—
88
Electronic fan 1 relay (base).
—
89
Not used (GT500).
—
Differential pump relay (Mach 1, GT500).
—
90
Not used (base).
—
Electronic fan 3 relay (base).
—
91
Not used (GT500).
—
Blower motor relay.
—
92
Fuel pump #2 relay (GT500).
—
93
250
Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Fuses

Protected Component
Fuse Rating
Fuse or Relay
Number
Not used (base).
—
Fuel pump relay.
—
94
1 J-case fuses.
2 M-case fuses.
3 Micro fuses.
Note: Spare fuse amperage may vary.
Passenger Compartment Fuse
Panel
The fuse panel is in the right-hand side of
the passenger footwell behind a trim panel
and plastic key code card.
To remove the trim panel, lift it from the
rear retaining hooks, while pulling it toward
you and swinging it away from the side. To
reinstall it, line up the tabs with the grooves
on the panel, drop the panel back into
place, and then push it shut. To reach the fuse panel, first remove the
key code card.
After replacing a fuse, return the key code
card to the original position. To reinstall
the trim panel, lineup the tabs with the
grooves on the panel, drop the panel back
into place, and then push it shut to reinstall
the trim panel.
251
Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Fuses

Protected Component
Fuse Rating
Fuse or Relay
Number
Not used.
—
1
Power windows.
10A
2
Electrochromic mirror.
Power door locks.
Power mirrors (base).
7.5A
3
Memory seats (base).
Not used (GT500).
—
Not used (spare).
20A
4
Not used.
—
5
Not used (spare).
10A
6
Not used (spare).
10A
7
252
Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing FusesE174564

Protected Component
Fuse Rating
Fuse or Relay
Number
Telematic control unit - modem.
5A
8
Not used.
5A
9
Not used.
—
10
Not used.
—
11
Electronic control panel.
7.5A
12
Gateway module.
Gear shift module (GT500).
Steering column control module.
7.5A
13
Instrument cluster.
Not used.
15A
14
SYNC.
15A
15
Gauges.
Not used.
—
16
Headlamp leveling switch (base).
7.5A
17
Not used (GT500).
—
Not used.
7.5A
18
Not used.
5A
19
Intrusion sensor module.
5A
20
In-vehicle temperature and humidity
sensor.
5A
21
Auxiliary body module.
5A
22
Amplifier.
30A
23
Vehicle dynamics module.
30A
24
Ambient lighting module (base).
20A
25
Auxiliary body module.
Right-hand front-window motor (power
distribution module).
30A
26
Passenger door control unit.
Left-hand rear-window power (base).
30A
27
Not used (GT500).
—
253
Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Fuses

Protected Component
Fuse Rating
Fuse or Relay
Number
Right-hand rear-window power (base).
30A
28
Not used (GT500).
—
Gateway module (base).
15A
29
Not used (spare) (GT500).
Not used (spare)
5A
30
Remote keyless entry.
10A
31
Audio unit.
20A
32
Not used.
—
33
Run/start bus.
30A
34
Power distribution box run/start relay
(base).
5A
35
Not used (GT500).
—
Front camera (base).
15A
36
Not used (GT500).
—
Heated steering wheel module (base).
20A
37
Not used (GT500).
—
Note: Spare fuse amperage may vary.
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. If electrical components in the vehicle are
not working, a fuse may have blown. Blown
fuses are identified by a broken wire within
the fuse. Check the appropriate fuses
before replacing any electrical
components.
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing FusesE217331

Fuse Types
Fuse Type
Callout
Micro 2
A
Micro 3
B
Maxi
C
Mini
D
M Case
E
J Case
F
J Case Low Profile
G
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing FusesE207206

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 the transmission to park (P), for automatic
transmission, or neutral (N), for manual
transmission.
2. Switch off the engine.
3. Block the wheels. Working with the Engine On WARNING: To reduce the risk of
vehicle damage and 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 the transmission to park (P), for automatic
transmission, or neutral (N), for manual
transmission.
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.
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing MaintenanceE142457

3. Release the hood latch by pushing the
secondary release lever to your
left-hand side. 4.
Open the hood. Support the hood with
the strut.
Closing the Hood
1. Remove the hood strut from the catch
and secure it correctly after use.
2. Lower the hood and allow it to drop under its own weight for the last
8–12 in (20– 30 cm).
Note: Make sure that the hood is correctly
closed.
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing MaintenanceE174561 E256471