Ambient Light Sensor: Testing and Inspection

Automatic Lighting Sensor Test/Replacement

NOTE: Take care not to scratch the dashboard.

1. Press the tab (A), carefully pry the speaker grille (B) out with a flat-tip screwdriver, then disconnect the connectors.





2. Pop out the automatic lighting/sun light sensor (C).

3. Reconnect the 5P connector (A).





4. Turn the ignition switch to ON (II).

5. Measure the voltage between automatic lighting sensor 5P connector terminals No. 1 and No. 3.

- About 3.6 V in direct sunlight
- About 0.2 V when the sensor is covered up

6. If the voltage is not as specified, replace the sensor.

NOTE: In auto mode, the headlights should turn on at about 1.4 V or less, and turn off at about 2.2 V or more.

7. Install the sensor in the reverse order of removal.