Diagrams of fuse boxes and relays – Mazda CX-5

Applies to vehicles manufactured in the years:

2018, 2019.

Engine compartment

Number	Amperes [A]	Description
1	50 A.	To protect various circuits
2	30 A.	To protect various circuits
3	30 A.	Engine management system (some models)
4	20 A.	Engine control system
5	30 A.	–
6	20 A.	–
7	40 A.	Cooling fan (some models)
8	20 A.	Windshield wiper de-icer (some models)
9	40 A.	Rear window defogger
10	40 A.	–
11	20 A.	Electric Parking Brake (EPB) (right)
12	20 A.	Electric Parking Brake (EPB) (Left)
13	30 A.	Public address system
14	30 A.	Cooling fan (some models)
15	40 A.	Engine control system
16	50 A.	ABS; Dynamic stability control system.
17	40 A.	Cooling fan (some models)
18	20 A.	Windshield wiper and washer
19	40 A.	Air conditioner
20	30 A.	Cooling fan (some models)
21	7.5 amps	Engine control system
22	15 A.	To protect various circuits
23	7.5 amps	Public address system
24	7.5 amps	–
25	15 A.	Engine control system
26	15 A.	Engine control system
27	15 A.	Engine management system (some models)
28	15 A.	Transmission control system (some models); Ignition switch.
29	20 A.	–
30	7.5 amps	Air conditioner
31	15 A.	–
32	15 A.	Horn
33	15 A.	Rear window wiper
34	20 A.	Headlamp high beam
35	15 A.	Heated steering wheel (some models)
36	15 A.	Fog lights (some models)
37	7.5 amps	Engine control system
38	15 A.	Low beam (left)
39	15 A.	Engine management system (some models)
40	?	–
41	10 A.	Instrument cluster
42	7.5 amps	Airbag
43	25 A.	Model equipped with the Bose® Sound System  (some models)
44	15 A.	Public address system
45	30 A.	ABS; Dynamic stability control system.
46	15 A.	Fuel system (some models)
47	25 A.	Fuel heater (some models)
48	15 A.	Rear lights; Number plate lighting; Parking lights.
49	25 A.	Engine management system (some models)
50	25 A.	Emergency lights; Direction indicators; Parking lights.
51	15 A.	Low beam (right)
52	25 A.	Accessory sockets
53	10 A.	Stop lights
54	15 A.	To protect various circuits

Passenger compartment

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

Number	Amperes [A]	Description
1	30 A.	Electrically adjustable seat (some models)
2	30 A.	Electric windows
3	15 A.	Accessory sockets
4	25 A.	Electric windows
5	15 A.	Trailer hitch (some models)
6	25 A.	Electric door locks
7	20 A.	Seat heating (some models)
8	10 A.	Sunroof (some models)
9	15 A.	Accessory sockets
10	7.5 amps	Power mirrors
11	15 A.	–
12	15 A.	Engine management system (some models)
13	15 A.	Engine management system (some models)
14	15 A.	Accessory sockets
15	7.5 amps	USB power socket (some models)
16	20 A.	Electric tailgate (some models)
17	7.5 amps	Mirror defogger (some models)
18	20 A.	Rear seat heating (some models)
19	?	–
20	7.5 amps	AT gear shift indicator (some models)
21	30 A.	Electrically adjustable seat (some models)