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6-2. Maintenance
Items Check points
Emission inspection
and maintenance (I/M)
programs
• Is the tire infla-
tion pressure
correct?
• The tires should
not be damaged
or excessively
worn.
• Have the tires
been rotated
according to the
maintenance
schedule?
Some states have vehicle
emission inspection pro-
grams which include OBD
(On Board Diagnostics)
checks. The OBD system
monitors the operation of
the emission control sys-
tem.
Tires
• The wheel nuts
should not be
loose.
If the malfunction indica-
tor lamp comes on
• The wiper blades
should not show
any signs of
cracking, split-
ting, wear, con-
tamination or
The OBD system determines
that a problem exists some-
where 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.
Windshield
wipers
deformation.
• The wiper blades
should clear the
windshield with-
out streaking or
skipping.
Your vehicle may not pass
the I/M test in the follow-
ing situations:
When the battery is discon-
nected or discharged
Readiness codes that are set
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
