Check Engine/Malfunction Indicator Lamp

THE MALFUNCTION INDICATOR LIGHT COMES ON (ALARM)
Among the self-diagnosis items, a malfunction indicator light comes on to notify the driver of the emission control items when an irregularity is detected.
However, when an irregular signal returns to normal and the Engine control unit judges that it has returned to normal, the malfunction indicator light goes out.
Moreover, when the ignition switch is turned OFF, the light goes out. Even if the ignition switch is turned on again, the light does not come on until the irregularity is detected.
Here, immediately after the ignition switch is turn on, the malfunction indicator light is lit for 5 seconds to indicate that the malfunction indicator light operates normally.

Malfunction Indicator Light Inspection
(1) Check to be sure, when the ignition switch is set to the "ON" position, that the light illuminates for about five seconds and then switches OFF.
(2) If the light does not illuminate, check for damage or disconnection of the harness, or for a blown fuse or a failed light bulb.