Chevrolet 1997 Cavalier Owner's Manual page 131

Low Coolant Warning Light
If this light comes on and
stays on, your system is low
on coolant and the engine
may overheat.
Malfunction Indicator Lamp
(Check Engine Light)
CHECK
Your Chevrolet is equipped
with a computer which
monitors operation of the
fuel, ignition and emission
control systems.
See the Index under "Engine Coolant'' and have your
vehicle serviced as soon as you can.
This system is called OBD I1 (On-Board
Diagnostics-Second Generation) and is intended to
assure that emissions are at acceptable levels for
the life of
the
vehicle, helping to produce a cleaner
environment. (In Canada, OBD I1 is replaced by
Enhanced Diagnostics.) The CHECK ENGINE light
comes on to indicate that there is a problem and service
is required, Malfunctions often will be indicated by the
system before any problem is apparent. This may
prevent more serious damage to your vehicle. This
system is also designed to assist your service technician
in correctly diagnosing any malfunction.
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