Toyota Avalon (XX50) 2019-2022 Service & Repair Manual > Sfi System: MIL Circuit
DESCRIPTION The Malfunction Indicator Lamp (MIL) is used to indicate vehicle malfunctions detected by the ECM. The MIL operation can be checked visually. When the engine switch is first turned on (IG), the MIL should be illuminated and should then turn off after the engine is started. If the MIL rem ...
