Fuse Box Diagram Mazda CX-3 (2015-2021)

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The subcompact crossover Mazda CX-3 is available from 2015 to the present. In this article, you will find fuse box diagrams of Mazda CX-3 2015, 2016, 2017, 2018, 2019, 2020, and 2021, get information about the location of the fuse panels inside the car, and learn about the assignment of each fuse (fuse layout).

Fuse Layout Mazda CX-3 2015-2021

Cigar lighter (power outlet) fuse: #5 “F.OUTLET” in the passenger compartment fuse box.

Table of Contents

Fuse box location

If the electrical system does not work, first inspect the fuses on the left side kick-panel.

If the headlights or other electrical components do not work and the fuses in the cabin are normal, inspect the fuse block under the bonnet.

Passenger compartment

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

Engine compartment

Fuse box diagrams

2015

Engine compartment

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Assignment of the fuses in the engine compartment (2015)

№	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)
10	RADIO	7.5 A	Audio system
11	ENGINE3	15 A	Engine control system
12	ENGINE1	15 A	Engine control system
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)
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	—	—	—
23	ROOM	25 A	Overhead light
24	FOG	15 A	Front fog lights (Some models)
25	H/CLEAN	20 A	Headlight washer (Some models)
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)
33	WIPER	20 A	Front window wiper
34	CABIN+B	50 A	For protection of various circuits
35	FAN2	30 A	—
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	—
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)
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)

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Passenger compartment

Assignment of the fuses in the passenger compartment (2015)

№	DESCRIPTION	AMP RATING	PROTECTED COMPONENT
1	—	—	—
2	—	—	—
3	—	—	—
4	—	—	—
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	—	—	—
13	—	—	—
14	SRS2/ESCL	15 A	Electronic steering lock
15	SEAT WARM	20 A	Seat warmer (Some models)
16	M.DEF	7.5 A	Mirror defogger (Some models)

2016, 2017

Engine compartment

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Assignment of the fuses in the engine compartment (2016, 2017)

№	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	Moonroof
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)
10	RADIO	7.5 A	Audio system
11	ENGINE3	15 A	Engine control system
12	ENGINE 1	15 A	Engine control system
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)
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	Taillights, License plate lights, Parking lights
22	—	—	—
23	ROOM	25 A	Overhead light
24	FOG	15 A	Fog lights (Some models)
25	H/CLEAN	20 A	—
26	STOP	10 A	Brake lights
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, Turn signal lights
31	FUEL PUMP	15 A	Fuel system
32	FUEL WARM	25 A	—
33	WIPER	20 A	Front window wiper
34	CABIN+B	50 A	For protection of various circuits
35	FAN2	30 A	—
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	—
41	FAN3	40 A	Cooling fan
42	ENG.MAIN	40 A	Engine control system
43	EPS	60 A	—
44	DEFOG	40 A	Rear window defogger
45	IG2	30 A	For protection of various circuits
46	INJECTOR	30 A	Engine control system
47	HEATER	40 A	Air conditioner
48	P.WINDOW1	30 A	Power windows
49	DCDC DE	40 A	—

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Passenger compartment

Assignment of the fuses in the passenger compartment (2016, 2017)

№	DESCRIPTION	AMP RATING	PROTECTED COMPONENT
1	—	—	—
2	—	—	—
3	—	—	—
4	—	—	—
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	—	—	—
13	—	—	—
14	SRS2/ESCL	15 A	—
15	SEAT WARM	20 A	Seat warmer (Some models)
16	M.DEF	7.5 A	Mirror defogger (Some models)

2017 UK, Australia

Engine compartment

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Assignment of the fuses in the engine compartment (2017 UK, Australia)

№	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 (Some models)
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)
10	RADIO	7.5 A	Audio system
11	ENGINE3	15 A	Engine control system
12	ENGINE1	15 A	Engine control system
13	ENGINE2	15 A	Engine control system
14	AUDIO1	25 A	Audio system
15	A/C MAG	7.5 A	Air conditioner
16	AT PUMP	15 A	Transaxle control system (Some models)
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	Heated steering wheel (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)
26	STOP	10 A	Brake lights. Rear fog light'
27	HORN	15 A	Horn
28	H/L LH	20 A	Headlight (LH)
29	ABS/DSC S	30 A	ABS, Dynamic stability control system
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)
33	WIPER	20 A	Front window wiper
34	CABIN+B	50 A	For protection of various circuits
35	FAN2	30 A	—
36	FUEL PUMP	30 A	Fuel system (Some models)
37	ABS/DSC M	50 A	ABS, Dynamic stability control system
38	EVVT	20 A	Engine control system (Some models)
39	—	—	—
40	FAN1	30 A	—
41	FAN 3	40 A	Cooling fan
42	ENG.MAIN	40 A	Engine control system
43	EPS	60 A	Power steering system (Some models)
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)

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Passenger compartment

Assignment of the fuses in the passenger compartment (2017 UK, Australia)

№	DESCRIPTION	AMP RATING	PROTECTED COMPONENT
1	—	—	—
2	—	—	—
3	—	—	—
4	—	—	—
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	30A	Power seat (Some models)
13	—	—	—
14	SRS2/ESCL	15 A	Electronic steering lock
15	SEAT WARM	20 A	Seat warmer (Some models)
16	M.DEF	7.5 A	Mirror defogger (Some models)

2018

Engine compartment

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Assignment of the fuses in the engine compartment (2018)

№	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	Moonroof (Some models)
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)
10	RADIO	7.5 A	Audio system
11	ENGINE3	15 A	Engine control system
12	ENGINE1	15 A	Engine control system
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)
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	Taillights, License plate lights, Parking lights
22	ST. HEATER	15 A	Heated steering wheel (Some models)
23	ROOM	25 A	Overhead light
24	FOG	15 A	Fog lights (Some models)
25	H/CLEAN	20 A	—
26	STOP	10 A	Brake lights
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, Turn signal lights
31	FUEL PUMP	15 A	Fuel system
32	FUEL WARM	25 A	—
33	WIPER	20 A	Front window wiper
34	CABIN+B	50 A	For protection of various circuits
35	FAN2	30 A	—
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	—
41	FAN3	40 A	Cooling fan
42	ENG.MAIN	40 A	Engine control system
43	EPS	60 A	—
44	DEFOG	40 A	Rear window defogger
45	IG2	30 A	For protection of various circuits
46	INJECTOR	30 A	Engine control system
47	HEATER	40 A	Air conditioner
48	P. WINDOW 1	30 A	Power windows
49	DCDC DE	40 A	—

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Passenger compartment

Assignment of the fuses in the passenger compartment (2018)

№	DESCRIPTION	AMP RATING	PROTECTED COMPONENT
1	—	—	—
2	—	—	—
3	—	—	—
4	—	—	—
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	Power seat (Some models)
13	—	—	—
14	SRS2/ESCL	15 A	—
15	SEAT WARM	20 A	Seat wanner (Some models)
16	M.DEF	7.5 A	Mirror defogger (Some models)

2019, 2020, 2021

Engine compartment

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Assignment of the fuses in the engine compartment (2019-2021)

№	Name	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	Moonroof (Some models)
4	INTERIOR	15 A	Overhead light, Audio system
5	ENG+B	7.5 A	Engine control system
6	AUDIO2 ENGINE4	15 A	Engine control system
7	METER1	10 A	Instrument cluster
8	SRS1	7.5 A	Air bag
9	METER2	7.5 A	—
10	RADIO	7.5 A	Audio system
11	ENGINE3	15 A	Engine control system
12	ENGINE 1	15 A	—
13	ENGINE2	15 A	Engine control system
14	AUDIO1	25 A	Audio system
15	A/C MAG	7.5 A	Air conditioner
16	AT PUMP	15 A	—
17	AT	15 A	Transaxle control system
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	Taillights, License plate lights, Parking lights
22	ST. HEATER	15 A/20A	Heated steering wheel (Some models), Headlight (Some models)
23	ROOM	25 A	Overhead light
24	FOG	15 A	Fog lights (Some models)
25	H/CLEAN	20 A	—
26	STOP	10 A	Brake lights
27	HORN	15 A	Horn
28	H/L LH	20 A	Headlight (LH)
29	ABS/DSC S	30 A	ABS, Dynamic stability control system
30	HAZARD	15 A	Hazard warning flashers, Turn signal lights
31	FUEL PUMP SCR	15 A	Fuel system
32	FUEL WARM	25 A	—
33	WIPER	20 A	Front window wiper
34	CABIN+B	50 A	For protection of various circuits
35	FAN 2 EPBL	30 A	Electric parking brake (LH)
36	FUEL PUMP	30 A	—
37	ABS/DSC M	50 A	ABS, Dynamic stability control system
38	EVVT	20 A	Engine control system
39	—	—	—
40	FAN1 EPBR	30 A	Electric parking brake (RH)
41	FAN3	40 A	Cooling fan
42	ENG.MAIN	40 A	Engine control system
43	EPS	60 A	—
44	DEFOG	40 A	Rear window defogger
45	IG2	30 A	For protection of various circuits
46	INJECTOR ENG.SUB	30 A	Engine control system
47	HEATER	40 A	Air conditioner
48	P. WINDOW 1	30 A	Power windows
49	DCDC DE	40 A	—

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Passenger compartment

Assignment of the fuses in the passenger compartment (2019-2021)

№	Name	Amp Rating	Protected Component
1	—	—	—
2	—	—	—
3	AUDIO2	15 A	Audio system
4	ST.HEATER	10 A	Heated steering 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
9	—	—	—
10	P.WINDOW2	25 A	Power windows
11	R.WIPER	15 A	Rear window wiper and washer
12	P.SEAT D	30 A	Power seat
13	—	—	—
14	SRS2/ESCL	15 A	—
15	SEAT WARM	20 A	Seat wanner
16	M.DEF	7.5 A	Mirror de fogger

Learn more:

How to check the fuses?

How to replace a blown fuse?

Why do car fuses blow?

Types of automotive fuses

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