fuse FORD MUSTANG 2021 User Guide

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
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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
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
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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.
254
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

UNDER HOOD OVERVIEW - 2.3L ECOBOOST™
Battery (out of view). See Changing the 12V Battery (page 270).
A
Engine oil dipstick. See
Engine Oil Dipstick (page 261).
B
Engine oil filler cap. See
Engine Oil Check (page 261).
C
Brake fluid reservoir. See
Brake Fluid Check (page 269).
D
Air filter assembly. See
Changing the Engine Air Filter (page 262).
E
Engine coolant reservoir. See
Engine Coolant Check (page 264).
F
Windshield washer fluid reservoir. See
Washer Fluid Check (page 274).
G
Power distribution box. See
Fuses (page 245).
H
Note: Your vehicle may not have an engine
cover as shown.
258
Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing MaintenanceE174450

UNDER HOOD OVERVIEW - 5.0L
Battery (out of view). See Changing the 12V Battery (page 270).
A.
Engine oil filler cap. See
Engine Oil Check (page 261).
B.
Engine oil dipstick. See
Engine Oil Dipstick (page 261).
C.
Brake fluid reservoir. See
Brake Fluid Check (page 269).
D.
Air filter. See
Changing the Engine Air Filter (page 262).
E.
Engine coolant reservoir.
See Engine Coolant Check (page 264).
F.
Washer system fluid reservoir. See
Washer Fluid Check (page 274).
G.
Engine compartment fuse box. See
Fuses (page 245).
H.
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing MaintenanceE250052

UNDER HOOD OVERVIEW - 5.0L, MACH 1
Battery (out of view). See Changing the 12V Battery (page 270).
A
Engine oil filler cap.
See Engine Oil Check (page 261).
B
Engine oil dipstick.
See Engine Oil Dipstick (page 261).
C
Brake fluid reservoir.
See Brake Fluid Check (page 269).
D
Air filter assembly.
See Changing the Engine Air Filter (page 262).
E
Engine coolant reservoir.
See Engine Coolant Check (page 264).
F
Windshield washer reservoir.
See Washer Fluid Check (page 274).
G
Power distribution box.
See Changing a Fuse (page 254).
H
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Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing MaintenanceE296063

NOTICE OF USE
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500
Mustang (CZG) Canada/United States of America, Vehicles Built From: 14-09-2020, enUSA, Edition date: 202010, Second-Printing Appendices