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Stop and check the tires as soon as
it is safe to do so. If underinflated,
inflate to the proper pressure.
See Tires on page 9-38 for more
information.
This light flashes for approximately
one minute and then stays on when
the system detects a malfunction.
See Tire Pressure Monitor System
on page 9-48 for more information.
Malfunction
Indicator Lamp
Check Engine Light
A computer system called OBD II
(On-Board Diagnostics-Second
Generation) monitors operation
of the fuel, ignition, and emission
control systems. It makes sure that
emissions are at acceptable levels
for the life of the vehicle, helping to
produce a cleaner environment.
This light comes on briefly, as a
check to show it is working, when the
ignition is turned to ON/RUN. If the
light does not come on, see your
dealer/retailer.
If the light stays on it indicates that
there is an OBD II problem and
service is required.
Malfunctions often are indicated by
the system before any problem is
apparent. Heeding the light can
prevent more serious damage to the
vehicle. This system is also designed
to assist the service technician in
correctly diagnosing any malfunction.
Notice: If the vehicle is
continually driven with this light
on, after a while, the emission
controls might not work as well,
the vehicle’s fuel economy might
not be as good, and the engine
might not run as smoothly. This
could lead to costly repairs that
might not be covered by the
warranty.
Notice: Modifications made to
the engine, transmission, exhaust,
intake, or fuel system of the
vehicle or the replacement of the
original tires with other than those
of the same Tire Performance
Criteria (TPC) can affect the
vehicle’s emission controls and
can cause this light to come on.
Modifications to these systems
could lead to costly repairs not
covered by the warranty. This
could also result in a failure
to pass a required Emission
Inspection/Maintenance test.
See Accessories and
Modifications on page 9-3.
4-20 Instruments and Controls