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3. Turn the knobs counterclockwise andlower the fuse block.
4. Locate the position of the suspected
fuse by using the chart inside the fuse
block cover.
5. Pull the fuse straight out with the fuse puller provided on the inside of the
engine compartment fuse block cover.
6. Inspect the fuse and replace it if it'sblown.
Normal Blown
7. 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 MIRROR 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 allother switches.
Maintenance and Care
Owner Maintenance
8-51
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Page 339 of 412
Black plate (339,1)
qFuse Panel Description
Fuse block (Engine compartment)
12 3
4 5 6
789
10
11
12
13 1415 16 17 18
19 20 21
22
23
24
25
26
27
28
29
30 31
32
33
34
35
36
Without turbocharger
DESCRIPTION FUSE RATING PROTECTED COMPONENT
1 FAN 40A Cooling fan
2 P/ST 80A Power steering
3 BTN 40A For protection of various circuits
4 HEAD 40A Headlights
5 PTC ――
6 GLOW/P.SEAT 30A Power seat
í
7 ABS 1 30A ABSí, DSCí
8ABS 2 20A ABSí, DSCí
9ENGINE 30A For protection of various circuits
10 ―― ―
11 IG KEY 1 30A Ignition switch
12 STARTER 20A Starter clutch
13 IG KEY 2 30 A Ignition switch
14 GLOW 1 ――
15 HEATER 40A Blower motor
16 GLOW 2 ――
17 DEFOG 40A Rear window defroster
Maintenance and Care
Owner Maintenance
8-53íSome models.
Mazda3_8Y64-EA-08A_Edition1 Page339
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Black plate (340,1)
DESCRIPTIONFUSE RATINGPROTECTED COMPONENT
18 AUDIO 30AAudio system
(BOSE
®Sound System-equipped model)
19 ABS IG 10A ABSí, DSCí
20 FOG 15A Front fog lightsí
21HORN 15A Horn
22 DRL 10A DRLí
23 H/CLEAN ――
24 F/PUMP 15A Fuel pump
25 P/ST IG 10A Power steering
26 A/C MAG 10A Air conditioner
í
27 ALT/TCM 15A TCMí
28 GLOW SIG ――
29 P.OUTLET 15A Power outlet
30 ENG +B 10A PCM
31 ROOM 15A Interior lights
32 ENG BAR 4 10A O
2sensorsí
33 ENG BAR 3 10A O2sensors
34 EGI INJ 10A Injector
35 ENG BAR 1 10A For protection of various circuits
36 ENG BAR 2 10A PCM, Fuel pump
With turbocharger DESCRIPTION FUSE RATING PROTECTED COMPONENT
1 FAN 70A Cooling fan
2 ―― ―
3 BTN 40A For protection of various circuits
4 HEAD 40A Headlights
5 F/PUMP 30A Fuel pump
6 ―― ―
7 ABS 1 30A ABS, DSC
8 ABS 2 20A ABS, DSC
9 ENGINE 30A For protection of various circuits
10 INJECTOR 30A Fuel injector 11 IG KEY1 30A Ignition switch
12 STARTER 20A Starter clutch
13 IG KEY2 30A Ignition switch
14 ―― ―
15 HEATER 40A Blower motor
16 ―― ―
17 DEFOG 40A Rear window defroster
18 AUDIO 30A Audio system
(BOSE Sound System-equipped model)
8-54
Maintenance and Care
íSome models.
Owner Maintenance
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Form No.8Y64-EA-08A
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DESCRIPTIONFUSE RATINGPROTECTED COMPONENT
19 ABS IG 10A ABS
20 FOG 15A Front fog lights
21 HORN 15A Horn
22 DRL 10A DRL
í
23 H/CLEAN ――
24 ETC 10A Elec. throttle valve
25 ―― ―
26 A/C MAG 10A Air conditioner
27 ―― ―
28 ―― ―
29 P.OUTLET 15A Power outlet
30 ENG +B 10A PCM
31 ROOM 15A Interior lights
32 ―― ―
33 ENG BAR 3 10A O
2sensors
34 ―― ―
35 ENG BAR 1 15A For protection of various circuits
36 ENG BAR 2 10A PCM, Fuel pump
Maintenance and Care
Owner Maintenance
8-55íSome models.
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Form No.8Y64-EA-08A
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Black plate (342,1)
Fuse block (Passenger's side)
37 38 39 4041 42
43 44 45 46
47 48 49 50 51
52 53 54 55 56 57 58
59 60 61 62 63 64
65 66 67 68 69 70
71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86
DESCRIPTION
FUSE RATINGPROTECTED COMPONENT
37 D/LOCK 2 15A Double locking systemí
38 STOP LAMP/HORN10A Stop Lamp, Horn
39 HEAD HIGH L 10A Headlight high beam (LH)
40 HEAD HIGH R 10A Headlight high beam (RH)
41 ―― ―
42 ―― ―
43 CIGAR 15A Lighter
44 RADIO 7.5A Audio system
45 MIRROR 10A Power mirror
í
46TAIL R 7.5ATaillight (RH), Parking light (RH), License
plate lights
47 OBD 10A For protection of various circuits
48 ―― ―
49 TR/LOCK ――
50 ―― ―
51 ―― ―
52 SUN ROOF 20A Moonroof
í
53WASHER 20A Windshield wiper and washer
54 ―― ―
55 P/WIND R ――
8-56
Maintenance and Care
íSome models.
Owner Maintenance
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DESCRIPTIONFUSE RATINGPROTECTED COMPONENT
56 P/WIND L ――
57 ALARM ――
58 M/DEF 7.5A Mirror Defroster
í
59―― ―
60 HEAD LOW R 15A Headlight low beam (RH), Headlight leveling
61 HEAD LOW L 15A Headlight low beam (LH)
62 ―― ―
63 ―― ―
64 ―― ―
65 SAS 10A Supplemental restraint system
66 METER 10A Instrument cluster, Immobilizer system
67 IGNITION 20A ABS
í, DSCí, Power steering
68 WIPER 20A Windshield wiper and washer
69 ENGINE 20A For protection of various circuits
70 IG SIG 10A Auto wiper
í, Power window switchí
71 SAS 2 7.5A Seat weight sensor
72 ―― ―
73 ―― ―
74 SEAT WARM 20A Seat warmer
í
75 D/LOCK 125A Power door lockí
76A/C 10A Air conditionerí, Heater control unit
77 P/WIND L 30A Power window (LH)í
78 P/WIND R 30A Power window (RH)í
79BACK 10A Reverse lights
80 SUN ROOF 7.5A Moonroofí
81TAIL L 7.5A Taillight (LH), Parking light (LH)
82 ILLUMI 7.5A Illumination
83 ―― ―
84 ―― ―
85 ―― ―
86 ―― ―
Maintenance and Care
Owner Maintenance
8-57íSome models.
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Black plate (395,1)
Service Publications
Factory-authorized Mazda service publications are available for owners who wish to do
some of their own maintenance and repair.
When requesting any of our publications through an Authorized Mazda Dealer, refer to the
chart below.
If they don't have what you need in stock, they can order it for you.
PUBLICATION ORDER NUMBERPUBLICATION DESCRIPTION
9999-95-017B-08 2008 WORKSHOP MANUAL (English)
9999-MX-017B-08 2008 WORKSHOP MANUAL (Spanish)
9999-95-019G-08 2008 WIRING DIAGRAM (English)
9999-MX-019G-08 2008 WIRING DIAGRAM (Spanish)
9999-95-038C-08R (U.S.A. only) 2008 OWNER'S MANUAL
9999-EC-038C-08R (Canada only) 2008 OWNER'S MANUAL
9999-PR-038C-08R (Puerto Rico, Mexico only) 2008 OWNER'S MANUAL
9999-95-MODL-08 2008 SERVICE HIGHLIGHTS
9999-95-011F-08NAV (U.S.A. only) 2008 NAVIGATION SYSTEM OWNER'S MANUAL
9999-EC-011F-08NAV (Canada only) 2008 NAVIGATION SYSTEM OWNER'S MANUAL
qWORKSHOP MANUAL:
Covers recommended maintenance and repair procedures of the drive train, body and
chassis.
qWIRING DIAGRAM:
Provides electrical schematics as well as component location for the entire electrical
system.
qOWNER'S MANUAL:
This booklet contains information regarding the proper care and operation of your vehicle.
This is not a technician's manual.
qSERVICE HIGHLIGHTS:
Provides description and operation of the many systems of your Mazda.
Customer Information and Reporting Safety Defects
Service Publications
9-45
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Page 403 of 412

Black plate (403,1)
qLight Bulbs
Exterior light
Light bulb Category
Wattage ECE R (SAE)
Headlights High beam 60 HB3 (HB3)
Low beam
Halogen 55 H7 (H7)
Xenon fusion 35 D2S (D2S)
Front turn signal lights/Side-marker lights 27/8 ―(#1157NA)
Fog lights
íType A 55H11 (H11)
Type B 51HB4 (HB4)
Side turn signal lights
*15 WY5W (―)
High-mount brake light 4 Door
18W16W (#921)
5 Door Bulb type
18W16W (#921)
LED type LED
*2―(― )
Rear turn signal lights 21 WY21W ( ―)
Brake lights/Taillights Bulb type 21/5 W21/5W (#7443)
LED type LED
*2―
(― )
Reverse lights 21 W21W (#7440)
License plate light 5 W5W ( ―)
*1 Bulb replacement is not possible because it is built into the unit. Replace the unit.
*2 LED is the abbreviation for Light Emitting Diode.
Fog lights
Type A Type B
Interior light Light bulb Category
Wattage ECE R
Trunk light (4 Door) 5W5W
Luggage compartment light (5 Door) ―
Overhead light/Map lights (Front)
íW5W
Overhead light (Rear) 10 ―
Vanity mirror lights
í1.2 ―
Specifications
10-7íSome models.
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Form No.8Y64-EA-08A