2008 TOYOTA YARIS Emission control system

232
4-2. Maintenance
Emission inspection and maintenance (I/M) programs
Some states have vehicle emission inspection programs which
include OBD (On Board Diagnostics) checks. The OBD system moni-
tors the operation of th e emission control system.
■If the malfunction indicator lamp comes on
The OBD system determines that a problem exists somewhere
in the emission control system. Your vehicle may not pass the I/
M test and may need to be repaired. Contact your Toyota dealer
to service the vehicle.
■ Your vehicle may not pass the I/M test:
●When the battery is disconnected or discharged
Readiness codes that are se t during ordinary driving are
erased.
Also, depending on your driving habits, the readiness codes
may not be completely set.
● When the fuel tank cap is loose
The malfunction indicator lamp comes on as a temporary mal-
function and your vehicle may not pass the I/M test.
■ When the malfunction indicator lamp goes off after several
driving trips
The error code in the OBD system will not be cleared unless the
vehicle is driven 40 or more times.
■ If your vehicle does not pass the I/M test
Contact your Toyota dealer to prepare the vehicle for re-testing.

5
When trouble arises
301
5-2. Steps to take in an emergency
Stop the vehicle immediately.
The following warnings indicate the possibility of damage to the vehi-
cle that may lead to an accident. Immediately stop the vehicle in a
safe place and contact your Toyota dealer.
*: The light may come on when the oil level is extremely low. It is not designed to indicate low oil level, and the oil level must be checked using the engine
oil level dipstick.
Have the vehicle inspected immediately.
Failing to investigate the cause of the following warnings may lead to
the system operating abnormally and possibly cause an accident.
Have the vehicle inspected by your Toyota dealer immediately.
Warning lightWarning light/Details
Charging system warning light Indicates a malfunction in the vehicle’s charging sys-
tem.
Low engine oil pressure warning light Indicates that the engine oil pressure is too low*.
High engine coolant temperature warning light Indicate a engine is almost overheating.( P. 332)
Warning lightWarning light/Details
(except Canada)
(Canada) Malfunction indicator lamp
Indicates a malfunction in:
• The electronic engine control system;
• The electronic throttle control system;
• The electronic automatic transmission control sys-tem; or
• Emission control system.

348 6-1. Specifications
■Toyota recommends the use of gaso line containing detergent additives
● Toyota recommends the use of gasoline that contains detergent additives
to avoid build-up of engine deposits.
● All gasoline sold in the US contains detergent additives to clean and/or
keep clean intake systems.
■ Toyota recommends the use of cleaner burning gasoline
Cleaner burning gasoline, including reformulated gasoline that contains oxy-
genates such as ethanol or MTBE (Methyl Tertiary Butyl Ether) is available in
many areas.
Toyota recommends the use of cleaner burning gasoline and appropriately
blended reformulated gasoline. These types of gasoline provide excellent
vehicle performance, reduce vehicle emissions and improve air quality.
■ Toyota does not recomm end blended gasoline
● Toyota allows the use of oxygenate blended gasoline where the oxygen-
ate content is up to 10 % ethanol or 15 % MTBE.
● If you use gasohol in your Toyota, be sure that it has an octane rating no
lower than 87.
● Toyota does not recommend the use of gasoline containing methanol.
■ Toyota does not recommen d gasoline containing MMT
Some gasoline contains octane enhancing additive called MMT (Methylcy-
clopentadienyl Manganese Tricarbonyl).
Toyota does not recommend the use of gasoline that contains MMT. If fuel
containing MMT is used, your emission control system may be adversely
affected.
The malfunction indicator lamp on the instrument cluster may come on. If
this happens, contact your Toyota dealer for service.

349
6-1. Specifications
6
Vehicle specifications
NOTICE
■
Notice on gasoline quality
●Do not use leaded gasoline.
Leaded gasoline can cause damage to your vehicle’s three-way catalytic
converters causing the emission control system to malfunction.
● Do not use gasohol other than that stated here.
Other gasohol may cause fuel system damage or vehicle performance
problems.
● Use of unleaded gasoline with an octane rating lower than 87 may result in
engine knocking. Persistent knocking can lead to engine damage and
should be corrected by refueling with higher octane unleaded gasoline.
■ Fuel-related poor driveability
If after using a different type of fuel, poor driveability is encountered (poor
hot starting, vaporization, engine knocking, etc.), discontinue the use of that
type of fuel.
■ When refueling with gasohol
Take care not to spill gasohol.
It can damage your vehicle’s paint.

374
Abbreviation list
Abbreviation/Acronym list
ABBREVIATIONSMEANING
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
EPS Electric Power Steering
GAWR Gross Axle Weight Ratings
GVWR Gross Vehicle Weight Rating I/M Emission inspection and maintenance
LED Light Emitting Diode LT Light truck
M + S Mud + Snow MMT Methylcy clopentadienyl Manganese Tricarbonyl
MTBE Methyl Tertiary Butyl Ether
OBD On Board DiagnosticsSRS Supplemental Restraint System TIN Tire Identification Number
TPMS Tire Pressure Warning System TWI Treadwear IndicatorsVIN Vehicle Identification Number

378 Alphabetical index
Fuel pump shut off system ..... 297
Fuses......................................... 269
Gas station information........... 388
Gauges ...................................... 129
Glove boxes.............................. 206
Head restraintsAdjusting ................................45
Headlights Indicator ................................ 139
Replacing light bulbs ............. 280
Switch.................................... 139
Wattage ................................. 346
Hood .......................................... 236
I/M test....................................... 232
Identification
Engine ................................... 339
Tire ........................................ 350
Vehicle .................................. 339
Ignition switch .......................... 119
Illuminated entry system ......... 204
Immobilizer system....................70
Indicator lights ......................... 135
Initialization Items to initialize.................... 365
Inside rear view mirror ..............59
Interior light Switch.................................... 205
Wattage ................................. 346
Jack Positioning a floor jack .......... 237
Replacing the flat tire ............ 310
Jack handle .............................. 310
Keys Electronic key ..........................26
Engine switch ........................ 119
If you lose your keys ............. 326
Ignition switch........................ 119 Key battery ............................ 267
Key number plate .................... 26
Keys ........................................ 26
Mechanical key ....................... 26
Wireless remote control .......... 28
License plate lights Replacing light bulbs ............. 280
Switch ................................... 139
Wattage................................. 346
Light bulbs Replacing .............................. 280
Wattage................................. 346
Lights Fog lights switch ................... 141
Headlights switch .................. 139
Instrument panel lightsswitch.................................. 139
Interior light switch ................ 205
License plate lights switch .... 139
Parking lights switch ............. 139
Personal lights switch ........... 205
Replacing light bulbs ............. 280
Side marker lights switch ...... 139
Tail lights switch .................... 139
Turn signal lights switch ........ 126
Load capacity ........................... 150
Lock steering column.............. 121
Luggage compartment features Auxiliary boxes ...................... 219
Luggage cover ...................... 220
Luggage compartment light Wattage................................. 346
Maintenance Do-it-yourself maintenance ... 233
Emission inspection and
maintenance (I/M)
programs ............................ 232
General maintenance............ 229
Maintenance data ................. 338
Maintenance requirements ... 227
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