MAINTENANCE
489
EMISSIONS INSPECTION AND
MAINTENANCE (I/M) PROGRAMS
Some states have vehicle emission inspection programs
which include OBD (On
−
Board Diagnostics) checks.
The OBD system monitors the operation of the emission
control system. When the OBD system determines that a
problem exists somewhere in the emission control system, the
malfunction indicator lamp comes on. In this case, your vehicle
may not pass the I/M test and need to be repaired. Contact
your Lexus dealer to service the vehicle.
Even if the malfunction indicator lamp does not come on, your
vehicle may not pass the I/M test as readiness codes have not
been set in the OBD system.
Readiness codes are automatically set during ordinary driving.
However, when the battery is disconnected or run down, the
codes are erased. Also, depending on your driving habits, the
codes may not be completely set.
Also, if the malfunction indicator lamp had come on recently
due to temporary malfunction such as a loose fuel tank cap,
your vehicle may not pass the I/M test.
The malfunction indicator lamp will go off after taking several
driving trips, but the error code in the OBD system will not be
cleared unless about 40 trips or more are taken.
If your vehicle does not pass the I/M test and the malfunction
indicator lamp does not come on, contact your Lexus dealer to
prepare the vehicle for re
−
testing.
Summary of Contents for GX470 2006
Page 14: ...HOW TO USE THIS MANUAL x I n f o r ma t i o nP r o v i d e db y ...
Page 25: ...PICTORIAL INDEX xxi I n f o r ma t i o nP r o v i d e db y ...
Page 71: ...SWITCHES 46 I n f o r ma t i o nP r o v i d e db y ...
Page 123: ...INTERIOR EQUIPMENT 98 I n f o r ma t i o nP r o v i d e db y ...
Page 225: ...OCCUPANT RESTRAINT SYSTEMS 200 I n f o r ma t i o nP r o v i d e db y ...
Page 237: ...STEERING WHEEL AND MIRRORS 212 I n f o r ma t i o nP r o v i d e db y ...
Page 241: ...AIR CONDITIONING 216 21PY024 Air flow selection I n f o r ma t i o nP r o v i d e db y ...
Page 255: ...AIR CONDITIONING 230 I n f o r ma t i o nP r o v i d e db y ...
Page 320: ...AUDIO 295 22PY056 I n f o r ma t i o nP r o v i d e db y ...
Page 365: ...AUDIO 340 I n f o r ma t i o nP r o v i d e db y ...
Page 421: ...STARTING AND DRIVING 396 I n f o r ma t i o nP r o v i d e db y ...
Page 449: ...DRIVING TIPS 424 I n f o r ma t i o nP r o v i d e db y ...
Page 507: ...IN CASE OF AN EMERGENCY 482 I n f o r ma t i o nP r o v i d e db y ...
Page 515: ...MAINTENANCE 490 I n f o r ma t i o nP r o v i d e db y ...
Page 525: ...INTRODUCTION 500 I n f o r ma t i o nP r o v i d e db y ...
Page 587: ...ELECTRICAL COMPONENTS 562 I n f o r ma t i o nP r o v i d e db y ...
Page 590: ...BODY 565 FUEL TANK Capacity 87 L 23 gal 19 1 Imp gal I n f o r ma t i o nP r o v i d e db y ...
Page 599: ...BODY 574 I n f o r ma t i o nP r o v i d e db y ...