1997 Buick Skylark Owner's Manual - Page 123

Malfunction Indicator Lamp (Check Engine Light) Your Buickis equipped with a computer which monitors operationof the fuel, ignition and emission control systems. I NOTICE: ' CHECK ENGINE 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 runsmoothly. as This could lead costly repairs that may not be to covered by your warranty. ~ This system is called OBD1(On-Board 1 Diagnostics-SecondGeneration)andisintendedto assure that emissions are at acceptable levels for e Light Flashing-- A misfire condition has been a the lifeof the vehicle, helping to produce cleaner detected. A misfire increases vehicle emissions and environment. (In Canada, OBD1 is replaced by 1 may darnage the emission control system on your Enhanced Diagnostics.) TheCHECK ENGINE light vehicle. Dealer or qualified service center diagnosis comes onto indicate that there is a problem and service and service is required. is required. Malfunctions often will be indicated by the e Light On Steady -- An emission control system system before any problem is apparent. This may malfunction has been detected your vehicle. on prevent more serious damage to your vehicle. This Dealer or qualified service center diagnosis and system is also designed to assist your service technician service may be required. in correctly diagnosing any malfunction. This light should come as a check to show you is on, it working, when the ignition is on and the engine is not running. If the light doesn't come on, haverepaired. it This lightwill also comeon during a malfunction in one of two ways: