Mazda CX-3 (2015 – 2022) Fuse Box Diagrams & Location

Mazda CX-3 (2015 – 2022) Fuse Box Diagrams & Location

The Mazda CX-3 (2015–2022) features fuse boxes that protect essential electrical systems throughout the vehicle. This blog provides clear fuse box locations and diagrams for these model years, helping you identify fuse positions, ratings, and protected components when troubleshooting electrical issues or replacing a blown fuse.

Fuse Box Location

Passenger Compartment Fuse Box

The fuse box is located on the left side of the vehicle, under the dashboard, near the door.

Engine Compartment Fuse Box

Fuse Box Diagrams

Passenger Compartment Fuse Box

Mazda CX-3 (2015 – 2021)

№	DESCRIPTION	AMP RATING	PROTECTED COMPONENT
1	—	—	—
2	—	—	—
3	—  AUDIO2	—  15 A	—  2019-2021: Audio system
4	—  ST.HEATER	—  10 A	—  2019-2021: Heated steering system
5	F.OUTLET	15 A	Accessory sockets
6	—	—	—
7	AT IND	7.5 A	AT shift indicator (Some models)
8	MIRROR	7.5 A	Power control mirror
9	—	—	—
10	P.WINDOW2	25 A	Power windows
11	R.WIPER	15 A	Rear window wiper and washer
12	—  P.SEAT D	—  30 A	—  2019-2021: Power seat
13	—	—	—
14	SRS2/ESCL	15 A	Electronic steering lock  2016-2021: —
15	SEAT WARM	20 A	Seat warmer (Some models)
16	M.DEF	7.5 A	Mirror defogger (Some models)

Mazda CX-3 (2022)

Engine Compartment Fuse Box

Mazda CX-3 (2015 – 2021)

№	DESCRIPTION	AMP RATING	PROTECTED COMPONENT
1	C/U IG1	15 A	For protection of various circuits
2	ENGINE IG1	7.5 A	Engine control system
3	SUNROOF	10 A	Sunroof
4	INTERIOR	15 A	Overhead light
5	ENG+B	7.5 A	Engine control system
6	AUDIO2	15 A	Audio system
7	METER1	10 A	Instrument cluster
8	SRS1	7.5 A	Air bag
9	METER2	7.5 A	Instrument cluster (Some models)  2019-2021: —
10	RADIO	7.5 A	Audio system
11	ENGINE3	15 A	Engine control system
12	ENGINE1	15 A	Engine control system  2019-2021: —
13	ENGINE2	15 A	Engine control system
14	AUDIO1	25 A	Audio system
15	A/C MAG	7.5 A	Air conditioner (Some models)
16	AT PUMP	15 A	Transaxle control system (Some models)  2019-2021: —
17	AT	15 A	Transaxle control system (Some models)
18	D.LOCK	25 A	Power door locks
19	H/L RH	20 A	Headlight (RH)
20	ENG+B2	7.5 A	Engine control system
21	TAIL	20 A	Tail lights, Number plate lights, Position lights
22	—  ST. HEATER	—  15 A/20A	—  2019-2021: Heated steering wheel (Some models), Headlight (Some models)
23	ROOM	25 A	Overhead light
24	FOG	15 A	Front fog lights (Some models)
25	H/CLEAN	20 A	Headlight washer (Some models)  2016-2021: —
26	STOP	10 A	Brake lights, Rear fog light (Some models)
27	HORN	15 A	Horn
28	H/L LH	20 A	Headlight (LH)
29	ABS/DSC S	30 A	ABS, Dynamic stability control system (Some models)
30	HAZARD	15 A	Hazard warning flashers, Direction indicator lights
31	FUEL PUMP	15 A	Fuel system (Some models)
32	FUEL WARM	25 A	Fuel warmer (Some models)  2016-2021: —
33	WIPER	20 A	Front window wiper
34	CABIN+B	50 A	For protection of various circuits
35	FAN2	30 A	—  2019-2021: Electric parking brake (LH)
36	FUEL PUMP	30 A	—
37	ABS/DSC M	50 A	ABS, Dynamic stability control system (Some models)
38	EVVT	20 A	Engine control system (Some models)
39	—	—	—
40	FAN1	30 A	—  2019-2021: Electric parking brake (RH)
41	FAN 3	40 A	Cooling fan (Some models)
42	ENG.MAIN	40 A	Engine control system
43	EPS	60 A	Power steering system (Some models)  2016-2021: —
44	DEFOG	40 A	Rear window defogger
45	IG2	30 A	For protection of various circuits
46	INJECTOR	30 A	Engine control system (Some models)
47	HEATER	40 A	Air conditioner
48	P. WINDOW 1	30 A	Power windows
49	DCDC DE	40 A	For protection of various circuits (Some models)  2016-2021: —

Mazda CX-3 (2022)

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