Mazda MX-5 Miata (NB; 1999-2005) fuses

Fuse box diagram (location and assignment of electrical fuses) for Mazda MX-5 Miata (Mazdaspeed MX-5) (NB; 2002, 2003, 2004, 2005).

Fuse box diagram: Mazda MX-5 Miata (NB; 1999-2005)

2002, 2003
2004, 2005

Fuse box location

If the electrical system doesn’t work, first inspect fuses on the driver’s side.

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.

Fuse box in the passenger compartment

The fuse box is located on the left of the steering wheel under the coverThe location of the fuses in the passenger compartment: Mazda MX-5 Miata (2002, 2003, 2004, 2005)

Fuse box in the engine compartment

The location of the fuses in the engine compartment: Mazda MX-5 Miata (2002, 2003, 2004, 2005)

2002, 2003

Fuse box diagram (Engine compartment)

Under-hood fuse box diagram: Mazda MX-5 Miata (2002, 2003)

Assignment of the fuses in the engine compartment fuse box (2002, 2003)
DESCRIPTIONFUSE RATINGPROTECTED COMPONENT
1HEAD40AHeadlights, Rear defroster. Auto antenna
2FUEL INJ30AFuel injection
3MAIN100 AFor protection of all circuits
4IG KEY60AAll ignition related circuits
5BLOWER30ABlower motor
6FAN30ACooling fan. Additional fan (air conditioner)
7BTN 130ATaillights, Dashboard illumination
8BTN 220AAudio amp. Turn signal lights
9ABS20AAnti lock brake system
10STOP15ABrake lights, Horn, Shift lock

Fuse box diagram (Passenger compartment)

Instrument panel fuse box diagram: Mazda MX-5 Miata (2002, 2003)

Assignment of the fuses in the passenger compartment (2002, 2003)
DESCRIPTIONFUSE RATINGPROTECTED COMPONENT
1ADD FAN20AAdd fan motor, Magnet clutch
2HEAD.LH15AHeadlights (LH)
3HEAD.RH15AHeadlights (RH)
4
5ST.SIG7.5AInstrument cluster. Cruise control
6
7CIGAR20ACigar lighter
8RADIO10AAudio
9F.FOG15AFog lights
10TAIL15ATaillights, Front parking lights. Side-marker lights
11ENGINE15AEngine control system
12METER15AInstrument cluster
13TURN7.5ATurn signal lights
14A/B10ASupplemental restraint system. Anti lock brake system
15WIPER20AWindshield wipers and washer
16PWIND30APower windows
17A/C7.5AAir conditioner
18HAZARD10ATurn signal lights
19D.LOCK10APower door lock
20AUDIO20AAudio amp
21DEFOG15ARear defroster
22ROOM10AInterior light, Auto antenna. Warning buzzers

2004, 2005

Fuse box diagram (Engine compartment)

Under-hood fuse box diagram: Mazda MX-5 Miata (2004, 2005)

Assignment of the fuses in the engine compartment fuse box (2004, 2005)
DESCRIPTIONFUSE RATINGPROTECTED COMPONENT
1HEAD40AHeadlights, Rear defroster, Auto antenna
2FUEL INJ30AFuel injection
3MAIN100 AFor protection of all circuits
4IG KEY60AAll ignition related circuits
5BLOWER30ABlower motor
6FAN30A (MX-5/Miata)Cooling fan, Additional fan (air conditioner)
6FAN40A (MAZDASPEED MX-5)Cooling fan, Additional fan (air conditioner)
7BTN 130ATaillights, Dashboard illumination
8BTN 220AAudio amp (Some models), Turn signal lights
9ABS20AAnti lock brake system (Some models)
10STOP15ABrake lights, Horn, Shift lock

Fuse box diagram (Passenger compartment)

Instrument panel fuse box diagram: Mazda MX-5 Miata (2004, 2005)

Assignment of the fuses in the passenger compartment (2004, 2005)
DESCRIPTIONFUSE RATINGPROTECTED COMPONENT
1AD FAN (MX-5/Miata)20AAdd fan motor, Magnet clutch
2HEAD.LH15AHeadlights (LH)
3HEAD.RH15AHeadlights (RH)
4
5ST.SIG7.5AInstrument cluster, Cruise control (Some models)
6FAN (MAZDASPEED MX-5)30ACooling fan. Additional fan (air conditioner)
7CIGAR20ACigar lighter
8RADIO10AAudio (Some models)
9F.FOG15AFog lights (Some models)
10TAIL15ATaillights, Front parking lights, Side-marker lights
11ENGINE15AEngine control system
12METER15AInstrument cluster
13TURN7.5ATurn signal lights
14A/B10ASupplemental restraint system. Antilock brake system (Some models)
15WIPER20AWindshield wipers and washer
16P.WIND30APower windows
17A/C7.5AAir conditioner (Some models)
18HAZARD10ATurn signal lights
19D.LOCK10APower door lock (Some models)
20AUDIO20AAudio amp (Some models)
21DEFOG15ARear defroster
22ROOM10AInterior light, Auto antenna, Warning buzzers
What a blown fuse looks like?

If the wire is broken, the fuse is blown (but sometimes a fuse can look completely normal and still be blown and in need of replacement).
Mazda MX-5 Miata (NB; 1999-2005) fuses December 16, 2018 admin