Automatic Light Control System:

WARNING: This page is about a different car, the 2003 Lexus RX 300. However, it is still accessible from the selected car via links, so may be relevant.

AUTOMATIC LIGHT CONTROL SYSTEM TROUBLE SYMPTOMS REFERENCE

Symptom	Suspect Area	See Section
"Automatic light control system" does not operate.	ECU-IG Fuse (Instrument Panel J/B) DOME Fuse (Engine Room J/B) Automatic Light Control Sensor Light Control Switch Door Courtesy Switch Body ECU Driver Door ECU Wire Harness	- INSPECTION - INSPECTION INSPECTION HOW TO PROCEED WITH TROUBLESHOOTING FRONT DOOR -