GX 470 V8-4.7L (2UZ-FE) (2004)
Malfunction Indicator Lamp: Description and Operation
CHECK MIL
a. The MIL comes on when the ignition switch is turned to ON and the engine is not running.
HINT: If the MIL is not illuminated, troubleshoot the MIL circuit.
b. When the engine is started, the MIL should not illuminate. If the lamp remains on, the diagnosis system has detected a malfunction or abnormality
in the system.