Emission Inspection And Maintenance (I/M) Programs; Emission Inspection And Maintenance (I/M) Pro- Grams - Toyota SIENNA 2022 Manual

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406
6-2. Maintenance
Vehicle exterior
Items
Doors
Engine hood
Fluid leaks
Tires
Windshield
wipers/rear
window wiper
Check points
• Do the doors
operate
smoothly?
• Does the engine
hood lock system
work properly?
• There should not
be any signs of
fluid leakage
after the vehicle
has been parked.
• 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?
• The wheel nuts
should not be
loose.
• The wiper blades
should not show
any signs of
cracking, split-
ting, wear, con-
tamination or
deformation.
• The wiper blades
should clear the
windshield/rear
window without
streaking or skip-
ping.
Emission inspection
and maintenance (I/M)
programs
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.
If the malfunction indica-
tor lamp comes on
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.
Your vehicle may not
pass the I/M test in the fol-
lowing situations:
 When the 12-volt battery is
disconnected or discharged
Readiness codes that are set
during ordinary driving are
erased.
Also, depending on your driv-
ing habits, the readiness
codes may not be completely
set.
 When the fuel tank cap is

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