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2023 Mazda CX-50 Fuses and Fuse box Diagram User Guide

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2023 Mazda CX-50 Fuses and Fuse box Diagram User Guide

This guide covers the 2023 Mazda CX-50 fuse box layout, including fuse locations, amperage ratings, and functions. Easy methods to locate and repair blown fuses keep your vehicle’s electrical systems safe and reliable.

2024 MAZDA CX-50 Specs, Price, Features, Mileage (Brochure)

Video: 2023 Mazda CX-50 Fuses

Fuse Replacement

Replacing the fuses on the vehicle’s left side

If the electrical system does not work, first inspect the fuses on the vehicle’s left side.

  1. Make sure the ignition is switched off, and other switches are off.
  2. Open the fuse panel cover.Fuses and Fuse box (3)
  3. Pull the fuse straight out with the fuse puller provided on the fuse block located in the engine compartment.Fuses and Fuse box (4)
  4. Inspect the fuse and replace it if it is blown.Fuses and Fuse box (5)
  5. Insert a new fuse of the same amperage rating, and make sure it fits tightly. If it does not fit tightly, have an expert install it. Consult an Authorized Mazda Dealer.
    If you have no spare fuses, borrow one of the same rating from a circuit not essential to vehicle operation, such as the audio or accessory socket circuit.
    CAUTION
    Always replace a fuse with a genuine Mazda fuse or equivalent of the same rating. Otherwise, you may damage the electric system.
  1. Reinstall the cover and make sure that it is securely installed.

Replacing the fuses under the hood

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

If a fuse is blown, it must be replaced. Follow these steps:

  1. Make sure the ignition is switched off, and other switches are off.
  2. Remove the fuse block cover.Fuses and Fuse box (6)
  3. If any fuse but the MAIN fuse is blown, replace it with a new one of the same amperage rating.Fuses and Fuse box (7)WARNING
    Do not replace the main fuse by yourself. Have an Authorized Mazda Dealer perform the replacement:
    Replacing the fuse by yourself is dangerous because the MAIN fuse is a high current fuse. Incorrect replacement could cause an electrical shock or a short circuit resulting in a fire.
  4. Reinstall the cover and make sure that it is securely installed.

Fuse block (Engine compartment)

Fuses and Fuse box (8)

DESCRIPTION

FUSE RATING

PROTECTED COMPONENT

1

CABIN.+B

50 A

For protection of various circuits

2

IG2

30 A

For protection of various circuits

3

INJECTOR ENG.SUB

30 A

Engine control system*

4

SCR1 EVVT

20 A

Engine control system*

5

P.WINDOW1

30 A

Power windows*

6

R.HEATER

20 A

―

7

ADD FAN DE

40 A

Cooling fan*

8

WIPER.DEI

20 A

Windshield wiper de-icer*

9

DEFOG

30 A

Rear window defogger

10

DCDC DE

40 A

For protection of various circuits

11

EPB R

20 A

Electric parking brake (EPB) (RH)

12

EPB L

20 A

Electric parking brake (EPB) (LH)

DESCRIPTION

FUSE RATING

PROTECTED COMPONENT

13

AUDIO DCDC REG

30 A

Audio system*

14

FAN GE

30 A

Cooling fan*

15

ENG.MAIN

40 A

Engine control system

16

ABS/DSC M

50 A

ABS, Dynamic stability control system

17

FAN DE

40 A

Cooling fan*

18

WIPER

20 A

Front window wiper and washer

19

HEATER

40 A

Air conditioner

20

ADD FAN GE

30 A

Cooling fan*

21

ENGINE.IG1

7.5 A

Engine control system

22

C/U IG1

15 A

For protection of various circuits

23

AUDIO2

7.5 A

Audio system

24

METER2

7.5 A

Instrument cluster*

25

ENGINE3

15 A

Engine control system

26

ENGINE2

15 A

Engine control system

27

ENGINE1

15 A

Engine control system*

28

AT

15 A

Transaxle control system, Ignition switch

29

H/CLEAN

20 A

―

30

A/C

7.5 A

Air conditioner

31

AT PUMP

15 A

Transaxle control system

32

HORN

15 A

Horn

33

R.WIPER

15 A

Rear window wiper

34

H/L HI

20 A

Headlight high beam

35

ST.HEATER

15 A

Heated steering wheel*

36

FOG

15 A

―

37

ENG.+B

7.5 A

Engine control system

38

H/L LOW L

15 A

Headlight low beam (LH)

39

ENGINE4

15 A

Engine control system*

40

INTERIOR1

15 A

For protection of various circuits*

41

METER1

10 A

Instrument cluster

42

SRS1

7.5 A

Air bag

43

AUDIO1

15 A

Audio system

44

BOSE

25 A

Bose Sound System-equipped model*

45

ABS/DSC S

30 A

ABS, Dynamic stability control system

46

FUEL PUMP

15 A

Fuel system*

DESCRIPTION

FUSE RATING

PROTECTED COMPONENT

47

FUEL WARM

25 A

Fuel warmer*

48

TAIL

15 A

Taillights, License plate lights, Parking lights

49

SCR2 FUEL PUMP2

25 A

―

50

HAZARD

25 A

Hazard warning flashers, Turn signal lights, Parking lights

51

H/L LOW R

15 A

Headlight low beam (RH)

52

OUTLET

25 A

Accessory sockets

53

STOP

10 A

Brake lights

54

ROOM

25 A

For protection of various circuit

Fuse block (Left side)

Fuses and Fuse box (10)

DESCRIPTION

FUSE RATING

PROTECTED COMPONENT

1

P.SEAT D

30 A

Power seat*

2

P.WINDOW3

30 A

Power windows

3

R.OUTLET3

15 A

Accessory sockets*

4

P.WINDOW2

25 A

Power windows

5

ESCL

15 A

Trailer hitch*

DESCRIPTION

FUSE RATING

PROTECTED COMPONENT

6

D.LOCK

25 A

Power door locks

7

SEAT WARM

20 A

Seat warmer*

8

SUNROOF

10 A

Moonroof*

9

F.OUTLET

15 A

Accessory sockets

10

MIRROR

7.5 A

Power control mirror

11

R.OUTLET1

15 A

Accessory sockets*

12

SCR3

15 A

―

13

SCR4

15 A

―

14

R.OUTLET2

15 A

Accessory sockets

15

USB

7.5 A

USB power outlet*

16

PLG

20 A

Power liftgate*

17

M.DEF

7.5 A

Mirror defogger*

18

R.SEAT W

20 A

Rear seat warmer*

19

INTERIOR2

15 A

For protection of various circuit

20

AT IND

7.5 A

AT shift indicator

21

P.SEAT P

30 A

Power seat*

View Full PDF: 2023 Mazda cx-50 User Manual| Auto User Guide

2024 MAZDA CX-50 Specs, Price, Features, Mileage (Brochure)

Video: 2023 Mazda CX-50 Fuses