Mazda 3 (2012 – 2013) – fuse box diagram

Year of production: 2012, 2013

Position	Description	Fuse rating [A]	Protected component
1	DCDC*1	—	—
1	FAN 2*2	40	Cooling fan*
2	ENG MAIN	40	Engine control system
3	BTN 1	50	For protection of various circuits
4	A/C MAG	7,5	Air conditioner
5	H/L HI	20	Headlight high beam
6	FOG	15	Fog lights*
7	H/L WASH	—	—
8	SUNROOF	15	Moonroof*
9	HEATER*1	40	Air conditioner
9	F.DEF RH*2	—	—
10	EVVT*1	20	Engine control system
10	F.DEF LH*2	—	—
11	FAN 1	40	Cooling fan*
12	ROOM	15	Overhead lights
13	TCM	15	Transaxle control system*
14	DSC	20	Dynamic Stability Control system*
15	BTN 2	7,5	For protection of various circuits
16	AT PUMP	—	—
17	PTC*1	—	—
17	HEATER*2	40	Air conditioner
18	INJ	30	Engine control system*
19	R.DEF	30	Rear window defroster
20	IGKEY 2	40	For protection of various circuits
21	IGKEY 1	40	For protection of various circuits
22	HORN	15	Horn
23	STOP	15	Brake lights
24	ENG+B	10	Engine control system
25	FUEL PUMP	25	Fuel system
26	ABS	40	ABS
27	SEAT WARM	20	Seat warmer*
28	EHPAS	80	Power assist steering
29	—	—	—
30	ABS IG	7,5	ABS
31	SWS	7,5	Air bag
32	H/L LO RH	15	Headlight low beam (RH)
33	H/L LO LH	15	Headlight low beam (LH)
34	ILLUM	7,5	Instrument panel illumination
35	TAIL	15	Taillights, Parking lights, License plate lights
36	ENG INJ	15	Engine control system
37	ENG BAR	15	Engine control system
38	ENG INJ*1		Engine control system
38	ENG BAR 2*2	20	Engine control system
39	EHPAS IG*1	—	—
39	ETV*2	15	Engine control system
* Some models 1 SKYACTIV-G 2.0 2 MZR 2.0, MZR 2.3 DISI Turbo and MZR 2.5

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