Chevrolet express 2001 用户手册

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页码 412
2-60
Malfunction Indicator Lamp 
(Service Engine Soon Light in the United
States or Check Engine Light in Canada)
(4.3L, 5.0L & 5.7L Engines and 
8.1L California Gasoline Engine)
United States
Canada
Your vehicle is equipped with a computer which
monitors operation of the fuel, ignition and emission
control systems.
This system is called OBD II (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. The SERVICE ENGINE SOON or
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.
NOTICE:
If you keep driving your vehicle with this light
on, after a while, your emission controls may not
work as well, your fuel economy may not be as
good and your engine may not run as smoothly.
This could lead to costly repairs that may not be
covered by your warranty.