Page 425 of 504

Black plate (425,1)
3. Pull the fuse straight out with the fusepuller provided on the inside of the
engine compartment fuse block cover.
4. Inspect the fuse and replace it if it'sblown.
Normal Blown
5. Insert a new fuse of the same amperage
rating, and make sure it fits tightly. If it
does not fit tightly, have an expert
install it. We recommend an
Authorized Mazda Dealer.
If you have no spare fuses, borrow one
of the same rating from a circuit not
essential to vehicle operation, such as
the AUDIO or CIGAR circuit.
CAUTION
Always replace a fuse with one of the
same rating. Otherwise you may
damage the electric system.
Replacing the fuses under the hood
If the headlights or other electrical
components do not work and the fuses in
the cabin are normal, inspect the fuse
block under the hood. If a fuse is blown, it
must be replaced. Follow these steps:
1. Turn off the ignition switch and all
other switches.
2. Remove the fuse block cover.
3. If any fuse but the MAIN fuse is blown, replace it with a new one of the
same amperage rating .
Normal
Blown
Maintenance and Care
Owner Maintenance
8-53
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Form No.8BG3-EA-09J
Page 426 of 504
Black plate (426,1)
WARNING
Do not replace the main fuse by
yourself. Have an Authorized Mazda
Dealer perform the replacement:Replacing the fuse by yourself is
dangerous because the MAIN fuse is
a high current fuse. Incorrect
replacement could cause an electrical
shock or a short circuit resulting in a
fire.
8-54
Maintenance and Care
Owner Maintenance
Mazda3_8BG3-EA-09J_Edition2 Page426
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Form No.8BG3-EA-09J
Page 427 of 504
Black plate (427,1)
qFuse Panel Description
Fuse block (Engine compartment)
32 33 34 35
36 37 38 39
54
1 2 3 678
1312 14 15 16
22
11109
212019
23 24 25
29 30 3127
28
26
17 18
DESCRIPTION
FUSE
RATING PROTECTED COMPONENT
1 FAN 2 40 A Cooling fan
í
2 ENG MAIN 40 A Engine control system
3 BTN 1 50 A For protection of various circuits
4 A/C MAG 7.5 A Air conditioner
5 H/L HI 20 A Headlight high beam
6 FOG 15 A Fog lights
í
7 H/L WASH ――
8 SUNROOF 15 A Moonroofí
9 F.DEF RH ――
10 F.DEF LH ――
11 FAN 1 40 A Cooling fan
12 ROOM 15 A Interior lights
13 TCM 15 A TCM
í
14 DSC 20 A Dynamic Stability Control systemí
15BTN 2 7.5 A For protection of various circuits
16 AT PUMP ――
17 HEATER 40 A Heater
Maintenance and Care
Owner Maintenance
8-55íSome models.
Mazda3_8BG3-EA-09J_Edition2 Page427
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Form No.8BG3-EA-09J
Page 428 of 504
Black plate (428,1)
DESCRIPTIONFUSE
RATING PROTECTED COMPONENT
18 INJ 30 A Injector
í
19R.DEF 30 A Rear window defroster
20 IGKEY 2 40 A For protection of various circuits
21 IGKEY 1 40 A For protection of various circuits
22 HORN 15 A Horn
23 STOP 15 A Brake lights
24
10A Engine control system
25 FUEL PUMP 25 A Fuel system
26 ABS 40 A ABS
27 SEAT WARM 20 A Seat warmer
í
28 EHPAS 80 A Electro-Hydraulic Power Assist Steering
29 ―― ―
30 ABS IG 7.5 A ABS
31 ―― ―
32 H/L LO RH 15 A Headlight low beam (RH)
33 H/L LO LH 15 A Headlight low beam (LH)
34 ILLUM 7.5 A Dashboard illumination
35 TAIL 15 A Taillights
36 ENG INJ 15 A Engine control system
37 ENG BAR 15 A PCM
38 ENG BAR 2 20 A PCM
39 ETV 15 A Electric throttle valve
8-56
Maintenance and Care
íSome models.
Owner Maintenance
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Form No.8BG3-EA-09J
Page 429 of 504
Black plate (429,1)
Fuse block (Passenger's side)
1 4 7 101316195 8 11 14 17 20
6 9 12 15 18 2128 30
22 24 26
29 31
23 25 27 32 33 34
2
3
DESCRIPTION
FUSE
RATING PROTECTED COMPONENT
1 BOSE 30 A Bose
®Sound System-equipped modelí
2P SEAT 30 A Power seatí
3P.WIND 30 A Power window
4 D LOCK 25 A Door lock motor
5 ―― ―
6 ―― ―
7 ESCL 15 A Electronic steering lock
í
8SAS 15 A Air bag
9 ―― ―
10 HAZARD 15 A Hazard warning flashers 11 METER 15 A For protection of various circuits
12 OUTLET 15 A Accessory sockets
13 R WIPER 15 A Rear wiper
í
14CIGAR 15 A Lighter
15 ―― ―
16 HEATER 10 A Blower motor
17 MIRROR 10 A Power control mirror
18 ST SIG 10 A Starter sig
19 ―― ―
Maintenance and Care
Owner Maintenance
8-57íSome models.
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Form No.8BG3-EA-09J
Page 430 of 504
Black plate (430,1)
DESCRIPTIONFUSE
RATING PROTECTED COMPONENT
20 AUDIO 7.5 A Audio system
21 M.DEF 7.5 A Mirror defroster
í
22AFS 7.5 A Adaptive Front-Lighting Systemí
23―― ―
24 ENG 20 A Engine control system
25 ―― ―
26 ―― ―
27 ―― ―
28 ―― ―
29 ―― ―
30 P.WIND 25 A Power window
31 ―― ―
32 F WIPER 25 A Windshield wiper and washer
33 ―― ―
34 ―― ―
8-58
Maintenance and Care
íSome models.
Owner Maintenance
Mazda3_8BG3-EA-09J_Edition2 Page430
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Form No.8BG3-EA-09J
Page 493 of 504

Black plate (493,1)
qTires
NOTE
The tires have been optimally matched with the chassis of your vehicle.
When replacing tires, Mazda recommends that you replace tires of the same type originally fitted to
your vehicle. For details, contact an Authorized Mazda Dealer.
Check the tire pressure label for tire size and inflation pressure.
Refer to Tire Inflation Pressure on page 8-35.
Standard tire
(Except 2.3-liter turbocharged engine)
Tire size Inflation pressure
Front Rear
P205/55R16 89H 240 kPa (35 psi) 240 kPa (35 psi)
P205/50R17 88V 220 kPa (32 psi) 220 kPa (32 psi)
(2.3-liter turbocharged engine)
Tire size Inflation pressure
Front Rear
P225/40R18 88Y 240 kPa (35 psi) 230 kPa (34 psi)
Temporary spare tire
Tire size Inflation pressure
T115/70D15 90M 420 kPa (60 psi)
T125/70D16 96M 420 kPa (60 psi)
T125/70D17 98M 420 kPa (60 psi)
qFuses
Refer to the fuse rating on page 8-52.
Specifications
10-9
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Form No.8BG3-EA-09J
Page 500 of 504

Black plate (500,1)
F
FlasherHazard warning .......................... 5-70
Headlights .................................. 5-58
Flat Tire ............................................... 7-3 Changing ...................................... 7-9
Spare tire and tool storage ............ 7-3
Fluids Classification .............................. 10-4
Owner maintenance ................... 8-15
Fog Lights ......................................... 5-63
Foot Brake .......................................... 5-5
Front Seats
(Electrically Operated Seats) ............... 2-4
Front Seats
(Manually Operated Seats) ................. 2-2
Fuel Filler lid and cap ........................ 3-48
Gauge ......................................... 5-38
Requirements ............................... 4-2
Tank capacity ............................. 10-5
Fuses ................................................. 8-52 Panel description ........................ 8-55
Replacement ............................... 8-52
G
Gauges .............................................. 5-36
Glove Box ....................................... 6-109
H
Hazard Warning Flasher .................... 5-70
Hazardous Driving .............................. 4-8
H
HeadlightsControl ....................................... 5-58
Flashing ...................................... 5-60
High-low beam .......................... 5-60
Leveling ..................................... 5-60
On reminder ............................... 5-60
Hood Release .................................... 3-50
Horn .................................................. 5-69
I
Ignition
Keys ........................................... 3-26
Switch .......................................... 5-2
Illuminated Entry System ................. 6-93
Immobilizer System
(with Advanced Key) ........................ 3-54
Immobilizer System
(without Advanced Key) ................... 3-58
Indicator Lights ................................. 5-41 AFS OFF .................................... 5-54
Cruise ......................................... 5-55
DSC OFF .................................... 5-54
Headlight high-beam .................. 5-53
KEY ............................................ 5-51
Power steering malfunction ........ 5-55
Security ...................................... 5-53
Shift position .............................. 5-54
TCS/DSC ................................... 5-54
Turn signal/hazard warning ........ 5-56
Information Display .......................... 6-95 Audio display ............................. 6-96
Climate control display .............. 6-96
Clock .......................................... 6-96
Information display functions .... 6-95
Outside temperature display ....... 6-96
Inside Trunk Release Lever ............... 3-44
Instrument Cluster ............................. 5-36
11-4
Index
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Form No.8BG3-EA-09J