Celica GT L4-1.8L (1ZZ-FE) (2001)
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Ambient Light Sensor: Testing and Inspection
w/ Automatic light control system:
INSPECT AUTOMATIC LIGHT CONTROL
a. Turn the ignition switch ON and engine running.
b. Turn the light control switch to OFF.
c. Parking brake lever released.
d. Gradually cover the top of the sensor.
e. Verify that the accessory lights and the headlights turn ON. (Daytime running lights ON)
w/ Automatic light control system:
INSPECT AUTOMATIC LIGHT CONTROL
a. Gradually expose the sensor.
b. Verify that the headlights and the accessory lights turn OFF.
