Page 388 of 553

Front turn signal lights
1. Make sure the ignition is switched off,and the headlight switch is off.
2. If you are changing the right bulb, start the engine, turn the steering wheel all
the way to the right, and turn off
engine. If you are changing the left
bulb, turn the steering wheel to the left.
3. Pull the center of each plastic retainer
and remove the retainers, and then
partially peel back the mudguard.
Removal
Installation
4. Disconnect the connector from the unit by pressing the tab on the connector
with your finger and pulling the
connector rearward.
5. Turn the socket and bulb assemblycounterclockwise and remove it.
6. Disconnect the bulb from the socket.
7. Install the new bulb in the reverseorder of the removal procedure.
Side turn signal lights
1. Make sure the ignition is switched off, and the headligh t switch is off.
2. If you are changing the right bulb, start the engine, turn the steering wheel all
the way to the right, and turn off
engine. If you are changing the left
bulb, turn the steering wheel to the left.
Maintenance and Care
Owner Maintenance
6-42
MX-5_8GV5-EA-18E_Edition3 2018-7-17 15:48:16
Page 395 of 553

Fuses
Your vehicle's electrical system is
protected by fuses.
If any lights, accessories, or controls do
not 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.
▼ Fuse Replacement
Replacing the fuses on
the vehicle's left
side
If the electrical system does not work, first
inspect the fuses on the vehicle's left side.
1. Make sure the ignition is switched off,
and other switches are off.
2. Open the fuse panel cover.
3. Pull the fuse straight out with the fuse puller provided on the fuse block
located in the engine compartment.
4. Inspect the fuse and replace it if it isblown.
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 OUTLET circuit.
CAUTION
Always replace a fuse with a genuine
Mazda fuse or equivalent of the same
rating. Otherwise you may damage the
electric system.
6. Reinstall the cover and make sure that it is securely installed.
Maintenance and Care
Owner Maintenance
6-49
MX-5_8GV5-EA-18E_Edition3 2018-7-17 15:48:16
Page 397 of 553
▼Fuse Panel Description
Fuse block (Engine compartment)
DESCRIPTION FUSE
RATING PROTECTED COMPONENT
1ENG IG3 5 A ―
2ENG IG2 5 A ―
3 HORN2 7.5 A Horn
4 C/U IG1 15 A For protectio n of various circuits
5 ENG IG1 7.5 A Engine control system
6― ― ―
7 INTERIOR 15 A Overhead light
8 ENG
B 7.5 A Engine control system
9 AUDIO2 15 A Audio system
10 METER1 10 A Instrument cluster 11 SRS1 7.5 A Air bag
12 ― ― ―
13 RADIO 7.5 A Audio system
14 ENGINE3 20 A ―
15 ENGINE1 10 A Engine control system
16 ENGINE2 15 A Engine control system
Maintenance and Care
Owner Maintenance
6-51
MX-5_8GV5-EA-18E_Edition3 2018-7-17 15:48:16
Page 398 of 553

DESCRIPTIONFUSE
RATING PROTECTED COMPONENT
17 AUDIO1 25 A Audio system
18 A/C MAG 7.5 A Air conditioner
19 AT P U M P
H/L HI 20 A
Transmission control system
*
20 AT 15 A
Transmission control system*
21 D LOCK 25 A Power door locks
22 H/L RH 20 A Headlight (RH)
23 ENG
B2 7.5 A Engine control system
24 TAIL 20 A Taillights, License plate lights, Parking lights
25 DRL 15 A ―
26 ROOM 25 A Overhead light
27 FOG 15 A ―
28 H/CLEAN 20 A ―
29 STOP 10 A Brake lights
30 HORN 15 A Horn
31 H/L LH 20 A Headlight (LH)
32 ABS/DSC S 30 A ABS, Dynami c stability control system
33 HAZARD 15 A Hazard warning fl ashers, Turn signal lights
34 FUEL PUMP 15 A Fuel system
35 ENG
B3 5 A ―
36 WIPER 20 A Windshield wipers
37 CABIN
B 50 A For protection of various circuits
38 ― ― ―
39 ENG SUB 30 A Engine control system
40 ABS/DSC M 50 A ABS, Dynami c stability control system
41 EVVT
A/R PUMP 20 A Engine control system
42 EVPS 30 A Brake control system
43 FAN1 30 A Cooling fan
44 FAN2 40 A ―
45 ENG.MAIN 40 A Engine control system
46 EPS 60 A Power steering system
47 DEFOG 30 A Rear window defogger
48 IG2 30 A For protection of various circuits
49 INJECTOR 30 A ―
50 HEATER 40 A Air conditioner
Maintenance and Care
Owner Maintenance
6-52*Some models.
MX-5_8GV5-EA-18E_Edition3 2018-7-17 15:48:16
Page 399 of 553
DESCRIPTIONFUSE
RATING PROTECTED COMPONENT
51 ― ― ―
52 ENGINE4 20 A Engine control system
Fuse block (Left side)
DESCRIPTION FUSE
RATING PROTECTED COMPONENT
1R HT R 3 0 A
Retractable hardtop (RH)
*
2R HT L 3 0 A
Retractable hardtop (LH)*
3― ― ―
4 ENGINE6 10 A Engine control system
5 F.OUTLET 15 A Accessory sockets
6― ― ―
7 AT IND 7.5 A
AT shift indicator
*
8 MIRROR 7.5 A Power control mirror
9R_DECK R 30 A Retractable hardtop (RH)
*
10 R_DECK L 30 A Retractable hardtop (LH)*
11 F.WASHER 15 A Windshield washer
12 P.WINDOW 30 A Power windows
13 ― ― ―
14 SRS2/ESCL 15 A Electronic steering lock
15 SEAT WARM 20 A Seat warmer
*
16M.DEF 7.5 A
Mirror defogger*
Maintenance and Care
Owner Maintenance
*Some models.6-53
MX-5_8GV5-EA-18E_Edition3 2018-7-17 15:48:16
Page 401 of 553

Water Marks
Occurrence
Rain, fog, dew, and even tap water can
contain harmful minerals such as salt and
lime. If moisture containing these minerals
settles on the vehicle and evaporates, the
minerals will concentrate and harden to
form white rings. The rings can damage
your vehicle's finish.
Prevention
It is necessary to wash and wax your
vehicle to preserve it s finish according to
the instructions in this section. These steps
should be taken immediately after you find
water marks on your vehicle's finish.
Paint Chipping
Occurrence
Paint chipping occurs when gravel thrown
in the air by another vehicle's tires hits
your vehicle.
How to avoid paint chipping
Keeping a safe distance between you and
the vehicle ahead reduces the chances of
having your paint chipped by flying
gravel.
NOTE
The paint chipping zone varies with the
speed of the vehicle. For example, when
traveling at 90 km/h (56 mph), the paint
chipping zone is 50 m (164 ft).
In low temperatures a vehicle's finish
hardens. This increases the chance of
paint chipping.
Chipped paint can lead to rust forming
on your Mazda. Before this happens,
repair the damage by using Mazda
touch-up paint according to the
instructions in this section. Failure to
repair the affected area could lead to
serious rusting and expensive repairs.
Follow all label and container directions
when using a chemical cleaner or polish.
Read all warnings and cautions.
▼ Maintaining the Finish
Wa s h i n g
CAUTION
When the wiper lever is in the
position and the ignition is switched ON,
the wipers may move automatically in
the following cases:
If the windshield above the rain sensor
is touched or wiped with a cloth.
If the windshield is struck with a hand
or other object from either outside or
inside the vehicle.
Keep hands and scrapers clear of the
windshield when the wiper lever is in the
position and the ignition is
switched ON as fingers could be pinched
or the wipers and wiper blades damaged
when the wipers activate automatically.
If you are going to clean the windshield,
be sure the wipers are turned off
completely (when it is most likely that the
engine is left running) this is particularly
important when clearing ice and snow.
Maintenance and Care
Appearance Care
6-55
MX-5_8GV5-EA-18E_Edition3 2018-7-17 15:48:16
Page 402 of 553

Do not spray water in the engine
compartment. Otherwise, it could result
in engine-starting problems or damage
to electrical parts.
When washing and waxing the vehicle,
be careful not to apply excessive force to
any single area of the vehicle hood.
Otherwise, you could dent the vehicle.
Do not use automatic car washing
machines and car washing devices using
high water pressure.
Make sure that the fuel-filler lid is closed
and lock the doors. Otherwise, the
fuel-filler lid may be forcefully opened by
water pressure causing damage to the
vehicle or fuel-filler lid.
To help protect the finish from rust and
deterioration, wash your Mazda
thoroughly and frequently, at least once a
month, with lukewarm or cold water.
If the vehicle is washed improperly, the
paint surface could be scratched. Here are
some examples of how scratching could
occur.
Scratches occur on the paint surface when:
The vehicle is washed without first
rinsing off dirt and other foreign matter.
The vehicle is washed with a rough, dry,
or dirty cloth.
The vehicle is washed at a car wash that
uses brushes that ar e dirty or too stiff.
Cleansers or wax containing abrasives
are used.
NOTE
Mazda is not responsible for scratches
caused by automatic car washes or
improper washing.
Scratches are more noticeable on
vehicles with darker paint finishes.
To minimize scratche s on the vehicle's
paint finish:
Rinse off any dirt or other foreign matter
using lukewarm or cold water before
washing.
Use plenty of lukewarm or cold water
and a soft cloth when washing the
vehicle. Do not use a nylon cloth.
Rub gently when washing or drying the
vehicle.
Take your vehicle only to a car wash
that keeps its brush es well maintained.
Do not use abrasive cleansers or wax
that contain abrasives.
CAUTION
Do not use steel wool, abrasive cleaners,
or strong detergents containing highly
alkaline or caustic agents on
chrome-plated or anodized aluminum
parts. This may damage the protective
coating; also, cleaners and detergents
may discolor or deteriorate the paint.
Pay special attention to removing salt, dirt,
mud, and other foreign material from the
underside of the fenders, and make sure
the drain holes in the lower edges of the
doors and rocker panels are clean.
Maintenance and Care
Appearance Care
6-56
MX-5_8GV5-EA-18E_Edition3 2018-7-17 15:48:16
Page 409 of 553

CAUTION
When cleaning the drainage outlets, be
careful not to touch the roof links or the
framework of the rear roof. Otherwise,
you could get injured.
Roof links Rear roof
6. After cleaning is finished, continue
pressing the retractable hardtop switch
in the close direction to close the rear
roof.
Refer to Closing the Roof on page
3-42.
▼Plastic Part Maintenance
When cleaning the plastic lenses of the
lights, do not use gasoline, kerosene,
rectified spirit, paint, thinner, highly
acidic detergents, or strongly alkaline
detergents. Otherwise, these chemical
agents can discolor or damage the
surfaces resulting in a
significant loss in
functionality. If plastic parts become
inadvertently exposed to any of these
chemical agents, flush with water
immediately.
If plastic parts s uch as the bumpers
become inadvertently exposed to
chemical agents or fluids such as
gasoline, oil, engine coolant, or battery
fluid, it could cause discoloration,
staining, or paint peeling. Wipe off any
such chemical agents or fluids using a
soft cloth immediately.
High water temperature and high water
pressure car washers are available
depending on the type of high pressure
car washer device. If the car washer
nozzle is put too close to the vehicle or
aimed at one area for an extended period
of time, it could deform plastic parts or
damage the paint.
Do not use wax containing compounds
(polish). Otherwise, it could result in
paint damage.
In addition, do not use an electrical or
air tool to apply wax. Otherwise, the
frictional heat generated could result in
deformation of plastic parts or paint
damage.
Maintenance and Care
Appearance Care
6-63
MX-5_8GV5-EA-18E_Edition3 2018-7-17 15:48:16