2012 TOYOTA MATRIX light

372 4-3. Do-it-yourself maintenance
CAUTION
■When inspecting or replacing tires
Observe the following precautions to prevent accidents. Failure to do so
may cause damage to parts of the drive train, as well as dangerous han-
dling characteristics, which may lead to an accident resulting in death or
serious injury.
● Do not mix tires of different makes, models or tread patterns. Also, do not
mix tires of remarkably different treadwear.
●
Do not use tire sizes other than those recommended by Toyota.
● Do not mix differently constructed tires (radial, bias-belted or bias-ply
tires).
●
Do not mix summer, all season and winter tires.
■When initializing the tire pressure warning system
Do not push the tire pressure warnin g reset switch without first adjusting
the tire inflation pressure to the spec ified level. Otherwise, the tire pres-
sure warning light may not come on ev en if the tire inflation pressure is
low, or it may come on when the tire inflation pressure is actually normal.

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4-3. Do-it-yourself maintenance
4
Maintenance and care
7 EPS
60 A Electric power steering
8 P/I 50 A EFI MAIN, HORN, IG2
9 H-LP MAIN 50 A H-LP LH LO, H-LP RH LO, H-LP
LH HI, H-LP RH HI
10 EFI NO. 2 10 A Emission control system
11 EFI NO. 1 10 AMultiport fuel injection system/
sequential multiport fuel injection
system
12 H-LP RH HI 10 A Right-hand headlight (high beam)
13 H-LP LH HI 10 A Left-hand headlight (high beam)
14 H-LP RH LO 10 A Right-hand headlight (low beam)
15 H-LP LH LO 10 A Left-hand headlight (low beam)
16 ETCS 10 AMultiport fuel injection system/
sequential multiport fuel injection
system
17 TURN-HAZ 10 A Turn signal lights, emergency
flashers
18 ALT-S 7.5 A Charging system
19 AM2 NO. 2 7.5 A Starting system, multiport fuel
injection system/sequential multi-
port fuel injection system
20 AM2 30 AStarting system, multiport fuel
injection system/sequential multi-
port fuel injection system
21 STRG LOCK 20 A No circuit
22 IG2 NO. 2 7.5 A Starting system
23 ECU-B2 10 A PTC heater
24 ECU-B 10 AMain body ECU, gauge and
meters, daytime running light sys-
tem
25 RAD NO. 1 15 A Audio system
FuseAmpereCircuit

390 4-3. Do-it-yourself maintenance
26 DOME10 AInterior lights, personal light, clock,
wireless remote control
27 SPARE 10 A Spare fuse
28 SPARE 30 A Spare fuse
29 SPARE 20 A Spare fuse
30 AMP 30 A No circuit
31 MAYDAY 10 A No circuit
32 EFI MAIN 20 AMultiport fuel injection system/
sequential multiport fuel injection
system, EFI NO. 1, EFI NO. 2
33 HORN 10 A Horn
34 IG2 15 AMultiport fuel injection system/
sequential multiport fuel injection
system, starting system, IGN,
METER
35 HTR SUB
NO. 1 30 A PTC heater
36 HTR SUB
NO. 3 30 A PTC heater
37 PWR OUTLET/
INVERTER 15 A Power outlet
FuseAmpereCircuit

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4-3. Do-it-yourself maintenance
4
Maintenance and care
■
Under the driver’s side instrument panel
FuseAmpereCircuit
1 TAIL 10 A Parking lights, tail lights, license
plate lights, multiport fuel injection
system/sequential multiport fuel
injection system, instrument cluster
lights
2 PANEL 7.5 A Switch illumination
3 FR DOOR 20 A Power windows, electric moon roof
4 RL DOOR 20 A Power windows
5 RR DOOR 20 A Power windows
6 SUNROOF 20 A Electric moon roof
7 CIG 15 A Cigarette lighter, power outlet
8 ACC 7.5 A Outside rear view mirrors, audio
system, main body ECU, clock,
shift lock control system
9 MIR HTR 10 A Multiport fuel injection system/
sequential multiport fuel injection
system, outside rear view mirror
heaters
10 PWR OUTLET 15 A No circuit

392 4-3. Do-it-yourself maintenance
11 IGN7.5 ASRS airbag system, multiport fuel
injection system/sequential multi-
port fuel injection system, front
passenger occupant classification
system
12 METER 7.5 A Gauge and meters
13 HTR-IG 10 AAir conditioning system, rear win-
dow defogger, PTC heater
14 WIPER 25 A Windshield wipers
15 RR WIPER 15 A Rear window wiper
16 WASHER 15 A Windshield washer
17 ECU-IG NO. 1 10 A Main body ECU, electric power
steering, electric cooling fan(s),
shift lock control system, anti-lock
brake system, multiport fuel injec-
tion system/sequential multiport
fuel injection system, tire pressure
warning system, vehicle stability
control system, all wheel drive sys-
tem
18 ECU-IG NO. 2 10 A Back-up lights, charging system,
rear window defogger, auto anti-
glare inside rear view mirror
19 OBD 7.5 A On-board diagnosis system
20 STOP 10 AStop lights, high mounted stop-
light, anti-lock brake system, vehi-
cle stability control system,
multiport fuel injection system/
sequential multiport fuel injection
system, shift lock control system
21 DOOR 25 A Power door lock system
22 ACC-B 25 A CIG, ACC
23 4WD 7.5 A All wheel drive system
FuseAmpereCircuit

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4-3. Do-it-yourself maintenance
4
Maintenance and care
24 FR FOG
15 A Front fog lights
25 AM1 7.5 AStarting system, shift lock control
system
26 DEF 30 A Rear window defogger, MIR HTR
27 POWER 30 A Power windows
■ After a fuse is replaced
●If the lights do not turn on even after the fuse has been replaced, a bulb
may need replacing. ( P. 394)
● If the replaced fuse blows again, have the vehicle inspected by your
Toyota dealer.
■ If there is an overload in the circuits
The fuses are designed to blow, protecting the wiring harness from damage.
CAUTION
■To prevent system breakdowns and vehicle fire
Observe the following precautions.
Failing to do so may cause damage, and possibly a fire or injury.
●Never use a fuse of a higher amperage rating than indicated, or use any
other object in place of a fuse.
● Always use a genuine Toyota fuse or equivalent.
Never replace a fuse with a wire, even as a temporary fix.
This can cause extensive damage or even fire.
● Do not modify the fuse or the fuse box.
NOTICE
■Before replacing fuses
Have the cause of electrical overload determined and repaired by your
Toyota dealer, as soon as possible.
FuseAmpereCircuit

394
4-3. Do-it-yourself maintenance
Light bulbs
You may replace the following bulbs yourself. The difficulty level of
replacement varies depending on the bulb. If necessary bulb
replacement seems difficult to perfor m, contact your Toyota dealer.
For more information about replacing other light bulbs, contact your
Toyota dealer.
■ Prepare a replacement light bulb.
Check the wattage of the light bulb being replaced. ( P. 469)
■ Front bulb locations
Headlight high beams
and daytime running
lights
Front turn signal/parking
and front side marker lights
Front fog lights (if equipped)Headlight low beams

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4-3. Do-it-yourself maintenance
4
Maintenance and care
■
Rear bulb locations
Stop/tail and rear
side marker lights
Rear turn signal lights
Back-up lights
License plate lights