Malfunction Indicator Light
WARNING: This page does not describe the selected car, but rather 17 other vehicles, including the 2003 Toyota Tundra, 2003 Toyota Tacoma, 2003 Toyota Sienna, 2003 Toyota Sequoia, and 2003 Toyota RAV4. However, it is still accessible from the selected car via links, so may be relevant.
All vehicles are equipped with a Malfunction Indicator Light (MIL). MIL may also be referred to as CHECK ENGINE light and is displayed as an engine icon on instrument cluster. MIL will momentarily illuminate when ignition is first turned on to do a bulb check. MIL may illuminate when systems related to emission controls are malfunctioning during normal vehicle operation. For additional information on MIL operation, see SELF-DIAGNOSTIC SYSTEM in appropriate SELF-DIAGNOSTICS article.