Mazda MX-5 (2021) – fuse and relay box

Table of Contents

Diagrams of fuse boxes and relays – Mazda MX-5

Applies to vehicles manufactured in the years:

2021.

Number	Amperes [A]	Description
1	5 A	―
2	5 A	―
3	7.5 A	Horn
4	15 A	For protection of various circuits
5	7.5 A	Engine control system
6	―	―
7	15 A	Overhead light
8	7.5 A	Engine control system
9	15 A	Audio system
10	10 A	Instrument cluster
11	7.5 A	Air bag
12	―	―
13	7.5 A	Audio system
14	20 A	―
15	10 A	Engine control system
16	15 A	Engine control system
17	25 A	Audio system
18	7.5 A	Air conditioner
19	20 A	Transmission control system (Some Models)
20	15 A	Transmission control system (Some Models)
21	25 A	Power door locks
22	20 A	Headlight (RH)
23	7.5 A	Engine control system
24	20 A	Taillights, License plate lights, Parking lights
25	15 A	―
26	25 A	Overhead light
27	15 A	―
28	20 A	―
29	10 A	Brake lights
30	15 A	Horn
31	20 A	Headlight (LH)
32	30 A	ABS, Dynamic stability control system
33	15 A	Hazard warning flashers, Turn signal lights
34	15 A	Fuel system
35	5 A	―
36	20 A	Windshield wipers
37	50 A	For protection of various circuits
38	―	―
39	30 A	Engine control system
40	50 A	ABS, Dynamic stability control system
41	20 A	Engine control system
42	30 A	Brake control system
43	30 A	Cooling fan
44	40 A	―
45	40 A	Engine control system
46	60 A	Power steering system
47	30 A	Rear window defogger
48	30 A	For protection of various circuits
49	30 A	―
50	40 A	Air conditioner
51	―	―
52	20 A	Engine control system

Number	Amperes [A]	Description
1	30 A	Retractable hardtop (RH) (Some Models)
2	30 A	Retractable hardtop (LH) (Some Models)
3	―	―
4	10 A	Engine control system
5	15 A	Accessory sockets
6	―	―
7	7.5 A	AT shift indicator (Some Models)
8	7.5 A	Power control mirror
9	30 A	Retractable hardtop (RH) (Some Models)
10	30 A	Retractable hardtop (LH) (Some Models)
11	15 A	Windshield washer
12	30 A	Power windows
13	―	―
14	15 A	Electronic steering lock
15	20 A	Seat warmer (Some Models)
16	7.5 A	Mirror defogger (Some Models)