3000GT AWD V6-2972cc 3.0L DOHC Turbo 24 Valve (1996)
Check Engine/Malfunction Indicator Lamp: Description and Operation
PURPOSE/OPERATION
Among the on-board diagnostic items, a check engine/malfunction indicator lamp 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 module judges that it has returned to
normal, the check engine/malfunction indicator lamp goes out. Moreover, when the ignition switch is turned off, the lamp goes out. Even if the
ignition switch is turned on again, the lamp does not come on until the irregularity is detected. Here, immediately after the ignition switch is turned
on, the check engine/malfunction indicator lamp is lit for 5 seconds to indicate that the check engine/malfunction indicator lamp operates normally.
Caution: The check engine/malfunction indicator lamp comes on when the line of the ignition timing adjustment terminal is shorted to ground.
Therefore, the lamp also comes on when the ignition timing adjustment terminal is grounded to adjust the ignition timing, but this does not show
any abnormality.
ITEMS INDICATED BY THE CHECK ENGINE/MALFUNCTION INDICATOR LAMP
NOTE:
1. After the Engine Control Module (ECM) detects a malfunction, the check engine/malfunction indicator lamp illuminates when the engine is
next turned on and the same malfunction is re-detected.
However, for items marked with a "*", the check engine/malfunction indicator lamp illuminates on the first detection of the malfunction.
