Diagrams of fuse boxes and relays – Mazda CX-9

Applies to vehicles manufactured in the years:

2016, 2017.

Engine compartment

Number	Amperes [A]	Description
1	twenty	–
2	thirty	To protect various circuits
3	thirty	Engine control system
4	–	–
5	thirty	Electric windows *
6	–	–
7	–	–
8	twenty	Engine control system
9	40	Rear window defogger
10	–	–
11	40	Air conditioner
12	twenty	Electric parking brake (left)
13	40	Public address system
14	twenty	Electric parking brake (right)
15	40	Engine control system
16	50	ABS; Dynamic stability control system.
17	50	To protect various circuits
18	twenty	Windshield wiper and washer
19	40	Air conditioner
20	–	–
21	7.5	Engine control system
22	15	To protect various circuits
23	15	Low beam (left)
24	15	–
25	15	Engine control system
26	15	Engine control system
27	15	Engine control system
28	15	Gearbox control system
29	twenty	–
30	7.5	Air conditioner
31	15	–
32	10	Stop lights
33	15	Rear window wiper
34	twenty	Headlamp high beam
35	15	Low beam (right)
36	15	Fog lights *
37	7.5	Engine control system
38	7.5	Public address system
39	10	Overhead light
40	15	–
41	10	Instrument cluster
42	7.5	Airbag
43	10	Sound system *
44	25	Public address system
45	thirty	ABS; Dynamic stability control system.
46	–	–
47	15	Heated steering wheel *
48	15	Parking lights
49	25	Fuel system
50	25	Emergency lights (ash lamps); Direction indicators; Rear lights.
51	15	Day lights
52	15	Accessory sockets
53	15	Horn
54	25	To protect various circuits
* Some models

Passenger compartment (left side)

Number	Amperes [A]	Description
1	thirty	Electric seat *
2	thirty	Electric windows
3	15	Accessory socket
4	25	Electric windows
5	twenty	Electric lifting flap
6	25	Electric door locks
7	twenty	Seat heating
8	15	–
9	10	Sunroof
10	15	Public address system
11	7.5	Engine control system
12	7.5	Power mirrors
13	7.5	AT gear shift indicator
14	15	Accessory sockets
15	15	–
16	–	–
17	7.5	Mirror defogger
18	–	–
19	15	Public address system
20	–	–
21	thirty	Electric seat *
* Some models