1999 Subaru Impreza Owner's Manual - Page 116

Instruments and controls NOTE This light also comes on when the fuel filler cap is not tightened until it clicks. If you have recently refueled your vehicle, the cause of the CHECK ENGINE warning light/malfunction indicator lamp coming on could be a loose or missing fuel filler cap. Remove the cap and retighten it until it clicks. Make sure nothing is interfering with the sealing of the cap. Tightening the cap will not make the CHECK ENGINE warning light turn off immediately. It may take several driving trips. If the light does not go out, take your vehicle to your authorized SUBARU dealer immediately. B If the light is blinking: If the light is blinking while driving, an engine misfire condition has been detected which may damage the emission control system. To prevent serious damage to the emission control system, you should do the following: D Reduce vehicle speed. D Avoid hard acceleration. D Avoid steep uphill grades. D Reduce the amount of cargo, if possible. D Stop towing a trailer as soon as possible. The CHECK ENGINE warning light may stop blinking and come on steadily after several driving trips. You should have your vehicle checked by an authorized SUBARU dealer immediately. (U.S.) ABS J ABS warning light (for vehicles with ABS) (Canada) The ABS warning light comes on when the ignition switch is turned to the "ON" position and goes out after about two seconds. This is an indication that the ABS system is working properly. If the warning light behaves as follows, ABS system may not work properly. D The warning light does not come on when the ignition switch is turned to the "ON" position. D The warning light comes on when the ignition switch is turned to the "ON" position, but it does not go out even when the vehicle speed - CONTINUED - 3-11