Page 303 of 378
Black plate (303,1)
Light Bulbs
High-mount brake light
License plate lights
Trunk light Reverse lights
Rear turn signal lights
Brake lights / Taillights
Side-marker lights
Overhead light
Head lights (High beam)
Parking light
Fog lights
Headlights (Low beam)
Front turn signal lights
Side-marker lights Some models.
Maintenance and Care
Owner Maintenance
8-35
MX-5_8U35-EA-05F_Edition4 Page303
Thursday, October 6 2005 11:6 AM
Form No.8U35-EA-05F
Page 307 of 378

Black plate (307,1)
3. Turn the center section of the plasticretainers counterclockwise and remove
them, then remove the mudguard.
Removal
Installation
4. Turn the socket and bulb assembly counterclockwise, and carefully pull it
backward.
5. Disconnect the socket and bulb assembly from the electrical connector
by pressing the tab on the connector
with your finger and pulling it.
6. Install the new socket and bulbassembly in the reverse order of
removal.
NOTE
lIf the halogen bulb is accidentally
touched, it should be cleaned with
rubbing alcohol before being used.
lUse the protective cover and carton
of the replacement bulb to dispose of
the old bulb promptly out of the
reach of children.
Front turn signal lights
1. If you are changing the right front turn
signal light bulb, start the engine, turn
the steering wheel all the way to the
left, and turn off the engine. If you are
changing the left front turn signal light
bulb, turn the steering wheel to the
right.
2. Turn the screws counterclockwise and remove them.
Maintenance and Care
Owner Maintenance
8-39
MX-5_8U35-EA-05F_Edition4 Page307
Thursday, October 6 2005 11:6 AM
Form No.8U35-EA-05F
Page 308 of 378
Black plate (308,1)
3. Turn the center section of the plasticretainers counterclockwise and remove
them, then remove the mudguard.
Removal
Installation
4. Turn the socket and bulb assembly counterclockwise and remove it.
5. Disconnect the bulb from the socket.
6. Install the new bulb in the reverse order of removal.
Parking lights
1. Turn the socket and bulb assemblycounterclockwise and remove it. 2. Disconnect the bulb from the socket.
3. Install the new bulb in the reverse order
of removal.
Front side-marker lights
NOTE
To replace the bulb, contact an
Authorized Mazda Dealer.
1. Slide the unit as shown in the figure to remove it.
2. Turn the socket and bulb assemblycounterclockwise and remove it.
8-40
Maintenance and Care
Owner Maintenance
MX-5_8U35-EA-05F_Edition4 Page308
Thursday, October 6 2005 11:6 AM
Form No.8U35-EA-05F
Page 309 of 378
Black plate (309,1)
3. Disconnect the bulb from the socket.
4. Install the new bulb in the reverse orderof removal.
Brake lights/Taillights, Rear turn signal
lights, Reverse lights
1. Pull the center section of the plasticretainers and remove them, then
remove the trunk end trim.
Removal
Installation
2. On the side the bulb is to be replaced, pull the center section of the plastic
retainers and remove them, then
remove the trunk side trim.
Removal
Installation
3. Turn the socket and bulb assembly counterclockwise and remove it.
4. Disconnect the bulb from the socket.
Brake lights/Taillights Rear turn signal lights
Reverse lights
5. Install the new bulb in the reverse order of removal.
Maintenance and Care
Owner Maintenance
8-41
MX-5_8U35-EA-05F_Edition4 Page309
Thursday, October 6 2005 11:6 AM
Form No.8U35-EA-05F
Page 311 of 378

Black plate (311,1)
Fuses
Your vehicle's electrical system is
protected by fuses.
If any lights, accessories, or controls don't
work, inspect the appropriate circuit
protector. If a fuse has blown, the inside
element will be melted.
If the same fuse blows again, avoid using
that system and consult an Authorized
Mazda Dealer as soon as possible.
qFuse Replacement
Replacing the fuses on the vehicle's left
side
If the electrical system doesn't work, first
inspect fuses on the vehicle's left side.
1. Turn off the ignition switch and other
switches.
2. Remove the cover.
3. Pull the fuse straight out with the fuse puller provided on the inside of the
engine compartment fuse block cover.
Fuse puller
Fuse block cover
4. Inspect it and replace if it's blown.
Normal Blown
5. Push in a new fuse of the same
amperage rating, and make sure it fits
tightly. If it doesn't, have an Authorized
Mazda Dealer install it.
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.
WARNING
Always replace a fuse with one of the
same rating. Otherwise you may
damage the electric system.
Maintenance and Care
Owner Maintenance
8-43
MX-5_8U35-EA-05F_Edition4 Page311
Thursday, October 6 2005 11:6 AM
Form No.8U35-EA-05F
Page 312 of 378
Black plate (312,1)
Replacing the fuses under the hood
If the headlights or other electrical
components don't work and the fuses in
the cabin are OK, 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.
2. Remove the fuse block cover.
3. If a fuse is blown, replace it with a new one of the same amperage rating .
Normal
Blown
NOTE
To replace the MAIN fuse, contact an
Authorized Mazda Dealer (page 8-45).
8-44
Maintenance and Care
Owner Maintenance
MX-5_8U35-EA-05F_Edition4 Page312
Thursday, October 6 2005 11:6 AM
Form No.8U35-EA-05F
Page 313 of 378
Black plate (313,1)
qFuse Panel Description
Fuse block (Engine compartment)
DESCRIPTION FUSE
RATING PROTECTED COMPONENT
1 FAN 30 A Cooling fan
2 FAN 7.5 A Cooling fan
3 DEFOG 20 A Rear window defroster
4 H/CLEAN 20 A ―
5 ROOM 15 A Overhead lights, Luggage compartment light, For protection of
various circuits
6 IG KEY2 15 A For protection of various circuits
7 HEATER 40 A Air conditioner
í
8 ABS 30 A ABS
9 FOG 15 A Front fog lightsí
10R.FOG 7.5 A ―
11 ―― ―
12 ―― ―
13 MAG 7.5 A Air conditioner
í
14ST 20 A Starter
15 TAIL 15 A Taillights, Parking lights, License plate lights, Illumination
16 ABS 40 A ABS
Maintenance and Care
Owner Maintenance
8-45íSome models.
MX-5_8U35-EA-05F_Edition4 Page313
Thursday, October 6 2005 11:6 AM
Form No.8U35-EA-05F
Page 314 of 378
Black plate (314,1)
DESCRIPTIONFUSE
RATING PROTECTED COMPONENT
17 BTN 30 A For protection of various circuits
18 MAIN 120 A For protection of all circuits
19 EGI INJ 10 A Injector
20 EGI COMP1 10 A Engine control system
21 EGI COMP2 10 A Engine control system
22 HEAD LOW L 15 A Headlight low beam (LH)
23 HEAD LOW R 15 A Headlight low beam (RH)
24 HEAD 15 A Headlight high beams
25 P.WIND 20 A Power windows
26 ENGINE 15 A Engine control system
27 WIPER 20 A Windshield wipers and washer
28 DRL 15 A DRL
í, Headlight levellingí
29HORN 15 A Horn
30 STOP 10 A Brake lights
31 ETV 10 A Electric throttle valve
32 FUEL PUMP 15 A Fuel Pump
33 HAZARD 10 A Turn signals, Hazard warning flashers
34 P.WIND2 20 A ―
35 IG KEY1 40 A For protection of various circuits
8-46
Maintenance and Care
íSome models.
Owner Maintenance
MX-5_8U35-EA-05F_Edition4 Page314
Thursday, October 6 2005 11:6 AM
Form No.8U35-EA-05F