1999 Ford Explorer Owner Guide 1st Printing - Page 6

Instrumentation WARNING LIGHTS AND CHIMES CHECK GAGE DOOR AJAR 4 H CHECK ENGINE 5 6 40 30 20 10 50 60 60 70 0 0 0 80 100 120 140 80 90 160 3 2 1 RPMx1000 C 40 000000 100 1 10 H L H CHECK SUSP SPEED CONT 4WD HIGH 4WD LOW 20 180 FUEL RESET F E ABS 0 ! BRAKE MPH km/h 120 THEFT P R N D 2 1 L O/D OFF Check engine Your vehicle is equipped with a computer that monitors the engine's CHECK emission control system. This ENGINE system is commonly known as the On Board Diagnostics System (OBD II). This OBD II system protects the environment by ensuring that your vehicle continues to meet government emission standards. The OBD II system also assists the service technician in properly servicing your vehicle. The Check Engine indicator light illuminates when the ignition is first turned to the ON position to check the bulb. If it comes on after the engine is started, one of the engine's emission control systems may be malfunctioning. The light may illuminate without a driveability concern being noted. The vehicle will usually be drivable and will not require towing. What you should do if the check engine light illuminates Light turns on solid: This means that the OBD II system has detected a malfunction. Temporary malfunctions may cause your Check Engine light to illuminate. Examples are: 1. The vehicle has run out of fuel. (The engine may misfire or run poorly.) 2. Poor fuel quality or water in the fuel. 6