2018 - 2019 Mazda 6 - Fuse Box Diagram

2018 Mazda 6

Fuses and Relays

 

Your vehicle's electrical system is protected by fuses.
If any lights, accessories, or controls do not work, inspect the appropriate circuit protector. If a fuse has blown, the inside element will be melted.
If the same fuse blows again, avoid using that system and consult an Authorized Mazda Dealer as soon as possible.

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.

Fuse Box on the vehicle's left side

 

 3. Pull the fuse straight out with the fuse puller provided on the fuse block located in the engine compartment.

Fuse puller provided on the fuse block located in the engine compartment

4. Inspect the fuse and replace it if it is blown.

Normal fuse, Blown fuse

 

 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. We recommend 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 OUTLET circuit.

CAUTION
Always replace a fuse with a genuine Mazda fuse or equivalent of the same rating. Otherwise you may damage the electric system.

6. Reinstall the cover and make sure that it is securely installed.

Left side Fuse block

 Fuse Panel Description - Left side vehicle Fuse block

 

Fuses Coding table

 
DESCRIPTION ... FUSE RATING .... PROTECTED COMPONENT

 

1 P.SEAT D 30 A Power seat*
2 P.SEAT P1 30 A Power seat*
3 R.SEAT W1 20 A Seat warmer*
4 P.WINDOW2 25 A Power windows
5 SRS2/ESCL 15 A ―
6 D.LOCK 25 A Power door locks
7 SEAT WARM 20 A Seat warmer*
8 SUNROOF 10 A Moonroof*
9 R.OUTLET1 15 A ―
10 MIRROR 7.5 A Power control mirror
11 AT IND 7.5 A AT shift indicator
12 INTERIOR1 15 A For protection of various circuits
13 INTERIOR2 10 A Overhead light
14 R.OUTLET2 15 A Accessory sockets
15 USB 7.5 A USB power outlet
16 SCR3 15 A ―
17 SCR4 15 A ―
18 AUDIO3 15 A Audio system*
19 R.SHADE 7.5 A ―
20 M.DEF 7.5 A Mirror defogger
21 ― ― ― 

* Some Models

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.

Fuse Box under the hood

 

 3. If any fuse but the MAIN fuse is blown, replace it with a new one of the same amperage rating.

Normal fuse, Blown fuse

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 Panel Description - Fuse block (Engine compartment)

Engine compartment Fuse Panel Diagram

DESCRIPTION ... FUSE RATING... PROTECTED COMPONENT
1 AUDIO DCDC REG 30 A Audio system
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 IG1 2 30 A For protection of various circuits
7 ― ― ―
8 ADD FAN DE 50 A Cooling fan
9 DEFOG 40 A Rear window defogger*
10 DCDC DE 40 A ―
11 EPB R 20 A Electric parking brake (EPB) (RH)
12 EPB L 20 A Electric parking brake (EPB) (LH)
13 CABIN.+B 50 A For protection of various circuits
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 HEATER 40 A Air conditioner*
18 WIPER 20 A Front window wiper and washer
19 FAN DE 50 A Cooling fan*
20 ADD FAN GE 30 A Cooling fan*
21 ENGINE3 15 A Engine control system
22 ENGINE2 15 A Engine control system
23 AUDIO2 7.5 A Audio system
24 METER2 10 A ―
25 SRS1 7.5 A Air bag
26 METER1 10 A Instrument cluster
27 ENGINE.IG1 7.5 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 ―
32 HORN 15 A Horn
33 R.WIPER 15 A Theft-deterrent system
34 H/L HI 20 A Headlight high beam
35 ― ― ―
36 WIPER.DEI 20A Windshield wiper de-icer
37 ENG.+B 7.5 A Engine control system
38 H/L LOW L 15 A Headlight low beam (LH) (Left Hand)
39 GLOW SIG 5 A ―
40 ENGINE1
ENGINE4 15 A Engine control system
41 C/U IG1 15 A Engine control system
42 ST.HEATER 15 A Heated steering wheel
43 ― ― ―
44 AUDIO1 25 A Audio system
45 ABS/DSC S 30 A ABS, Dynamic stability control system
46 FUEL PUMP 15 A Fuel system*
47 FUEL WARM 25 A Fuel warmer*
48 TAIL 15 A Taillights, License plate lights
49 SCR2 FUEL PUMP2 25 A Fuel system*
50 HAZARD 25 A Hazard warning flashers, Turn signal lights/Front side-marker lights,  Parking lights
51 H/L LOW R 15 A Headlight low beam (RH) (Right Hand)
52 OUTLET 25 A Accessory sockets
53 STOP 10 A Brake lights
54 ROOM 25 A Overhead light

* Some Models