RX 300 FWD V6-3.0L (1MZ-FE) (1999)
Dimmer Switch: Testing and Inspection
Component Inspection
INSPECT LIGHT CONTROL RHEOSTAT OPERATION
Gradually, turn the rheostat knob from the bright side to dark side and check that the resistance decreases from 10 k Ohms to 0 Ohms between terminal
4 and 5. (Rheostat knob turned to clockwise)
If operation is not as specified, replace the rheostat light control.