Mazda CX-5 (2G) – fuses and relays

Mazda CX-5 (KF) (2nd generation) was produced in 2017, 2018, 2019, 2020, 2021, 2022. In this article, we will show a description of the fuses and relays of the Mazda CX-5 KF with block diagrams, photos and locations. We will note the cigarette lighter fuse.

The purpose of fuses and relays in the blocks may vary. Compare the description with your diagrams.

Cabin block

Located under a protective cover on the left pillar, under the instrument panel near the driver’s foot.

Description

1	30A P.SEAT D – Electric seat adjustment drive (for some versions)
2	30A P.WINDOW 3 – Electric windows
3	15A R.OUTLET3 – Additional electrical outlets
4	25A P.WINDOW 2 – Electric windows
5	15A SRS2/ESCL – Steering shaft lock
6	25A D.LOCK – Central electric lock
7	20A SEAT WARM – Electric seat heating (for some versions)
8	10A SUNROOF – Sunroof (for some versions)
9	15A F.OUTLET – Front electrical sockets (cigarette lighter)
10	7.5A MIRROR – Electric drive for adjusting rear-view mirrors
11	15A R.OUTLET1 – Rear electrical outlets (for some versions)
12	Reserve
13	Reserve
14	Reserve
15	Reserve
16	Reserve
17	7.5A M.DEF – Electric heated exterior mirrors
18	20A R.SEAT W – Seat heating
19	Reserve
20	7.5A AT IND – Transmission Indicator
21	30A P.SEAT P – Electric seat adjustment drive

The cigarette lighter fuses are marked OUTLET at 15A and are located under numbers 3, 9 and 11. Another fuse and relays responsible for the operation of the power outlets can also be mounted in the unit under the hood.

Block under the hood

Located on the left side of the engine compartment, next to the battery.

Fuses

Fuse diagram

Purpose of fuses

1	30A ADD FAN GE – Engine cooling fan
2	30A IG2 – Protection of various electrical circuits
3	30A INJECTOR – Engine Management System
4	40A FAN DE – Engine cooling fan
5	30A P.WINDOW1 – Electric windows
6	Reserve
7	40A ADD FAN DE – Engine cooling fan
8	20A EVVT – Engine Management System
9	40A DEFOG – Electric heated rear window
10	40A DCDC DE – Protection of various electrical purposes
11	30A FAN GE – Engine cooling fan
12	Reserve
13	Reserve
14	Reserve
15	40A ENG.MAIN – Engine control system
16	50A ABS/DSC M – Anti-lock braking system (ABS), traction control system (DSC)
17	50A CABIN +B – Protection of various electrical circuits
18	20A WIPER – Windshield wiper and washer
19	40A HEATER – Heater / Air Conditioner
20	30A DCDC REG – Protection of various electrical circuits
21	7.5A ENGINE IG1 – Engine management system
22	15A C/U IG1 – Protection of various electrical circuits
23	H/L LOW L HID L – Headlight (left), low beam headlight (left)
24	15A H/L LOW R – Low beam headlight (right)
25	15A ENGINE 3 – Engine control system
26	15A ENGINE 2 – Engine control system
27	15A ENGINE 1 – Engine control system
28	15A AT – Transmission control system, ignition switch
29	20A H/CLEAN – Headlight washer
30	7.5A A/C – Air Conditioning
31	15A – AT PUMP Transmission control system
32	10A STOP – Brake lights, rear fog light
33	15A R.WIPER – Rear window wiper
34	20A H/L HI – High beam headlights
35	15A HID R – Headlight (right)
36	15A FOG – Front fog lights
37	7.5A ENG.+B – Engine control system
38	7.5A AUDIO2 – Audio system
39	5A GLOW SIG – Engine Management System
40	7.5A METER2 – Instrument cluster
41	10A METER1 – Instrument cluster
42	7.5A SRS1 – Airbags
43	25A BOSE – Cars equipped with a Bose audio system
44	15A AUDIO 1 – Audio system
45	30A ABS/DSC S – Anti-lock braking system (ABS), traction control system (DSC)
46	15A FUEL PUMP – Fuel system
47	25A FUEL WARM – Fuel heating
48	TAIL – Dimensions
49	Reserve
50	50A HAZARD – Hazard warning lights, turn signals, front and rear position lights, license plate lights
51	Reserve
52	15A R.OUTLET2 – Electrical sockets
53	15A HORN – Sound signal
54	15A ROOM – Interior lighting ceiling

To turn off the headlight washer, you need to remove fuse number 29 at 20A marked H/CLEAN .

Relay

Relay diagram

Relay designation

TNS RELAY (TAIL)	TNS RELAY (DIMENSIONS)
A/C RELAY	AIR CONDITIONING RELAY
FUELINJECTOR RELAY	FUEL INJECTOR RELAY
ELECTRIC AT OR OIL PUMP RELAY	ELECTRIC TRANSMISSION RELAY OR TRANSMISSION OIL PUMP RELAY
HEADLIGHT HI RELAY	HEADLIGHT RELAY
STARTER RELAY	STARTER RELAY
BLOWER RELAY	FAN RELAY
ELECTRIC VARIABLE VALVE TIMING RELAY	ELECTRIC VALVE CHARGING RELAY
REAR WINDOW DEFROSTER RELAY	REAR WINDOW DEFROSTING RELAY
FUEL PUMP RELAY	FUEL PUMP RELAY
OUTLET RELAY	ELECTRICAL SOCKET RELAY
HEADLIGHT LO RELAY	HEADLIGHT RELAY (NEAR)
IG1 RELAY	IGNITION RELAY
FRONT FOG LIGHT RELAY	FRONT FOG LIGHT RELAY
COOLING FAN RELAY NO.2	COOLING FAN RELAY #2
MAIN RELAY	MAIN RELAY
COOLING FAN RELAY NO. 3	COOLING FAN RELAY #3
DRL RELAY	RELAY DHO
HORN RELAY	RELAY SIGNAL
COOLING FAN ACC RELAY	COOLING FAN RELAY