2009 TOYOTA MATRIX air condition

319 4-3. Do-it-yourself maintenance
4
Maintenance and care
■Checking interval
Inspect and replace the air conditioning filter according to the maintenance
schedule. In dusty areas or areas with heavy traffic flow, early replacement
may be required. (For scheduled maintenance information, please refer to
the “Scheduled Maintenance Guide” or “Owner’s Manual Supplement”.)
■If air flow from the vents decreases dramatically
The filter may be clogged. Check the filter and replace if necessary.
NOTICE
■When using the air conditioning system
Make sure that a filter is always installed.
Using the air conditioning system without a filter may cause damage to the
system.
■Replacement method
Remove the air conditioning
filter and replace it with a new
one.
The “↑UP” marks shown on
the filter should be pointing up.

326 4-3. Do-it-yourself maintenance
Fuse layout and amperage ratings
■Engine compartment
FuseAmpereCircuit
1 CDS FAN 30 A Electric cooling fan(s)
2 RDI FAN 40 A Electric cooling fan(s)
3 ABS NO. 3 30 AAnti-lock brake system, vehicle sta-
bility control system
4 ABS NO. 1 50 AAnti-lock brake system, vehicle sta-
bility control system
5 HTR 50 A Air conditioning system
6 ALT 120 ACharging system, RDI FAN, CDS
FAN, ABS NO. 1, ABS NO. 3,
INVERTER, HTR, HTR SUB NO.
1, HTR SUB NO. 3, ACC, CIG,
METER, IGN, ECU-IG NO. 2, HTR-
IG, WIPER, RR WIPER, WASHER,
ECU-IG NO. 1, AM1, 4WD, DOOR,
STOP, FR DOOR, POWER, RR
DOOR, RL DOOR, OBD, ACC-B,
FR FOG, SUN ROOF, DEF, MIR
HTR, TAIL, PANEL

328 4-3. Do-it-yourself maintenance
24 ECU-B 10 AMain body ECU, gauge and
meters, daytime running light sys-
tem, air conditioning system, wire-
less remote control
25 RAD NO. 1 15 A Audio system
26 DOME 10 A Interior lights, personal light, clock
27 SPARE 10 A Spare fuse
28 SPARE 30 A Spare fuse
29 SPARE 20 A Spare fuse
30 AMP 30 A Audio system
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
35HTR SUB
NO. 130 A PTC heater
36HTR SUB
NO. 330 A PTC heater
37PWR OUTLET/
INVERTER15 A AC INVERTER
FuseAmpereCircuit

330 4-3. Do-it-yourself maintenance
13 HTR-IG 10 AAir conditioning system, rear win-
dow defogger
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 AMain 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
18 ECU-IG NO. 2 10 ABack-up lights, charging system,
rear window defogger
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
24 FR FOG 15 A Front fog lights
25 AM1 7.5 AStarting system, shift lock control
system, ACC, CIG
26 DEF 30 ARear window defogger, MIR HTR,
multiport fuel injection system/
sequential multiport fuel injection
system
27 POWER 30 A Power windows
FuseAmpereCircuit

348
5-1. Essential information
If you think something is wrong
If you notice any of the following symptoms, your vehicle probably
needs adjustment or repair. Contact your Toyota dealer as soon as
possible.
■Visible symptoms
●Fluid leaks under the vehicle
(Water dripping from the air conditioning after use is normal.)
●Flat-looking tires or uneven tire wear
●Engine coolant temperature gauge needle continually points
higher than normal
■Audible symptoms
●Changes in exhaust sound
●Excessive tire squeal when cornering
●Strange noises related to the suspension system
●Pinging or other noises related to the engine
■Operational symptoms
●Engine missing, stumbling or running rough
●Appreciable loss of power
●Vehicle pulls heavily to one side when braking
●Vehicle pulls heavily to one side when driving on a level road
●Loss of brake effectiveness, spongy feeling, pedal almost
touches the floor

358 5-2. Steps to take in an emergency
■When a tire is replaced with a spare tire
The compact spare tire is not equipped with the tire pressure warning
valve and transmitter. If a tire goes flat, the tire pressure warning light will
not turn off even though the flat tire is replaced with the spare tire.
Replace the spare tire with the repaired tire and adjust the proper tire
inflation pressure. The tire pressure warning light will turn off after a few
minutes.
■If the tire pressure warning system is inoperative
The tire pressure warning system will be disabled in the following condi-
tions:
(When the condition becomes normal, the system will work properly.)
●If tires not equipped with tire pressure warning valves and transmit-
ters are used.
●If the ID code on the tire pressure warning valves and transmitters is
not registered in the tire pressure warning computer.
●If the tire inflation pressure is 73 psi (500 kPa, 5.1 kgf/cm2 or bar) or
higher.
The tire pressure warning system may be disabled in the following condi-
tions:
(When the condition becomes normal, the system will work properly.)
●If electronic devices or facilities using similar radio wave frequencies
are nearby.
●If a radio set at similar frequencies is in use in the vehicle.
●If a window tint that affects the radio wave signals is installed.
●If there is a lot of snow or ice on the vehicle, in particular around the
wheels or wheel housings.
●If non-genuine Toyota wheels are used. (Even if you use Toyota
wheels, the tire pressure warning system may not work properly with
some types of tires.)
●If tire chains are used.

414 6-1. Specifications
Warning: The temperature grades for this tire are established for a
tire that is properly inflated and not overloaded.
Excessive speed, underinflation, or excessive loading, either sepa-
rately or in combination, can cause heat buildup and possible tire fail-
ure.
Glossary of tire terminology
Tire related termMeaning
Cold tire inflation pres-
sureTire pressure when the vehicle has been
parked for three hours or more, or has not
been driven more than 1 mile or 1.5 km under
that condition
Maximum inflation
pressureThe maximum cold inflated pressure to which a
tire may be inflated, shown on the sidewall of
the tire
Recommended infla-
tion pressureCold tire inflation pressure recommended by a
manufacturer
Accessory weightThe combined weight (in excess of those stan-
dard items which may be replaced) of auto-
matic transmission, power steering, power
brakes, power windows, power seats, radio
and heater, to the extent that these items are
available as factory-installed equipment
(whether installed or not)
Curb weightThe weight of a motor vehicle with standard
equipment, including the maximum capacity of
fuel, oil and coolant, and if so equipped, air
conditioning and additional weight optional
engine
Maximum loaded vehi-
cle weightThe sum of:
(a) Curb weight
(b) Accessory weight
(c) Vehicle capacity weight
(d) Production options weight

428
Abbreviation list
Abbreviation/Acronym list
ABBREVIATIONSMEANING
A/C Air Conditioner
ABS Anti-lock Brake System
ACC Accessory
ALR Automatic Locking Retractor
CRS Child Restraint System
ECU Electronic Control Unit
EDR Event Data Recorder
ELR Emergency Locking Retractor
GAWR Gross Axle Weight Rating
GVWR Gross Vehicle Weight Rating
I/M Emission inspection and maintenance
LED Light Emitting Diode
MMT Methylcyclopentadienyl Manganese Tricarbonyl
M + S Mud and Snow
MTBE Methyl Tertiary Butyl Ether
OBD On Board Diagnostics
SRS Supplemental Restraint System
TIN Tire Identification Number
TPMS Tire Pressure Warning System
TRAC Traction Control
VIN Vehicle Identification Number
VSC Vehicle Stability Control