Avalon XL V6-3.0L (1MZ-FE) (1997)
Ambient Light Sensor: Testing and Inspection
AUTOMATIC LIGHT CONTROL SYSTEM INSPECTION
1. INSPECT AUTOMATIC LIGHT CONTROL
AUTO ON:
a. Turn the ignition switch ON.
b. Turn the light control switch to AUTO.
c. Gradually cover the top of the sensor.
d. Make sure that the lights should turn ON the accessory lights and headlights.
2. INSPECT AUTOMATIC LIGHT CONTROL
AUTO OFF:
a. Gradually expose the sensor.
b. Make sure that the lights should turn OFF the headlights and accessory lights.
3. INSPECT LIGHTS-OFF CONDITION
a. Turn the ignition switch ON.
b. Gradually cover the top of the sensor.
Lights auto ON:
c. Make sure that the lights will go out when the light control switch is OFF, the area surrounding the sensor gets bright or open the driver's door
while the ignition switch is OFF.
4. INSPECT LIGHTS-ON CONDITION
a. Open the driver's door while the ignition switch is OFF.
b. Turn the light control switch to AUTO leaving the door open and cover the top of the sensor, make sure that the lights go on when the ignition
switch is turned ON.
5. ADJUST AUTOMATIC LIGHT CONTROL SENSOR
a. Adjustment of the light control is performed by turning the sensitivity knob on the sensor.
b. This will be determined at what light condition the automatic control will take place.
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If response is too quick. turn the knob counterclockwise.