Automatic Light Control Sensor Circuit: Description
WARNING: This page is about a different car, the 2009 Toyota Prius. However, it is still accessible from the selected car via links, so may be relevant.
The main body ECU receives signals from the automatic light control sensor.
HINT:
A DTC is output when the automatic light control sensor is malfunctioning or there is an open or short circuit in the automatic light control sensor (see FAIL-SAFE CHART ).