Fuses & relays

Fuses

Something electrical stopped working? Find its fuse here. Always replace with the same amp rating.

Fuses are in the engine room relay box or the instrument-panel junction box. Values are from the European owner’s manual; the Pakistan box lid was not checked, so read the label on your lid. ◔ double-check

Small fuses

The highlighted EFI fuse can be pulled to clear fault codes.

30A AM2

Starting, EFI, ST and IG2 fuses

15A DOME

Audio, interior lights, remote, gauges

15A EFI

Fuel injection, clock, cruise (petrol)

10A ETCS

Electronic throttle

5A ALT-S

Charging sensing

10A HAZARD

Turn signals / hazards

10A HORN

Horn

15A HEAD LH

Left headlamp

15A HEAD RH

Right headlamp

#10

30A HTR SUB

Auxiliary heater

#11

10A LO RH

Right low beam

#12

10A LO LH

Left low beam

#13

10A HI RH

Right high beam

#14

10A HI LH

Left high beam

#15

15A CIG

Cigarette lighter, audio, clock, power mirrors

#16

15A IG2

Gauges, SRS, EFI, starting, charging

#17

10A M-HTR/DEF I-UP

Mirror heaters, EFI

#18

7.5A ST

EFI, gauges (starter signal)

#19

10A ECU-B

A/C, ABS, VSC, rear fog

#20

25A AM1

CIG fuse

#21

15A TAIL

Tail, plate, park, panel lights, front fog

#22

20A P/W

Power windows

#23

15A STOP

Stop lamps, shift lock, EFI, ABS

#24

15A FOG

Front fog

#25

25A DOOR

Central locking

#26

10A A/C

Air conditioning

#27

7.5A OBD

Diagnostic connector (DLC3)

#28

10A GAUGE

Gauges, A/C, windows, reverse lamps, rear defogger, O/D, locks, charging

#29

15A S-HTR

Seat heaters

#30

15A WASH

Washer

#31

10A ECU-IG

SRS, electric fan, ABS, shift lock, EMPS

#32

25A WIPER

Front/rear wipers

#33

30A P/W (B)

Power windows

#34

30A ABS NO.2

ABS/VSC

#37

30A H-LP CLN

Headlamp cleaner

#43

30A POWER

Power windows, sunroof

Large fuses (40 A and up)

#35

50A ABS NO.1

ABS/VSC

#36

40A RDI FAN

Radiator fan

#38

40A HEAD MAIN

LO/HI fuses

#39

50A EMPS

Electric power steering (not on PK)

#40

50A HTR 1

A/C blower

#41

50A HTR 2

A/C

#42

40A DEFOG

Rear defogger

#44

40A HEATER

A/C

#45

100A ALT

Main charging feed (petrol); 140 A on diesel

#46

50A AM1 (main)

Feeds AM1 25A, POWER, DOOR, TAIL, STOP etc.

Source: Toyota Corolla owner's manual OM12A67SE (TMUK EU 2004), pp.306-308, 383-386

Layout can differ slightly by grade — check the label on the box lid.