Troubleshooting Hints

WARNING: This page is about a different car, the 2020 Mazda CX-30. However, it is still accessible from the selected car via links, so may be relevant.

Inspect condition of fuse.

Courtesy of MAZDA MOTORS CORP.

BLOWN FUSES SPECIFICATION

Damaged fuse

Related wiring harness

MAIN

F3 fuse
F4 fuse
F5 fuse
F7 fuse
F22fuse
F27fuse
F28fuse
F43 fuse
F44 fuse
IG1 relay No. 1
IG1 relay No. 2

ALT/ST

Generator
Starter

Sub relay

Electric variable valve timing relay

Main relay

Fuel pump relay

Electric variable valve timing relay
HO2S
Ignition coil/ion sensor No. 1
Ignition coil/ion sensor No. 2
Ignition coil/ion sensor No. 3
Ignition coil/ion sensor No. 4
A/F sensor
Intake CMP sensor
Exhaust CMP sensor

F10

Cooling fan relay No. 1
Cooling fan relay No. 2
Active air shutter ⁽¹⁾
Engine oil level sensor

F12

Sub relay
CV solenoid valve ⁽²⁾
OCV ⁽³⁾
OCV for hydraulic variable valve timing system ⁽⁴⁾
Engine oil solenoid valve
Purge solenoid valve
Compressor valve

F16

Instrument cluster

F22

BCM
Instrument cluster

F27

F45 fuse

F28

F16 fuse

F43

Cooling fan relay No. 1
Cooling fan relay No. 2

F44

Starter relay

F45

F49

F53

Fuel pump relay
PCM

⁽¹⁾	Vehicles with active air shutter

⁽²⁾	U.S.A. and CANADA

⁽³⁾	Vehicles without cylinder deactivation

⁽⁴⁾	Vehicles with cylinder deactivation