Ambient Light Sensor: Testing and Inspection

LIGHTING: AUTOMATIC LIGHT CONTROL SENSOR: ON-VEHICLE INSPECTION

1. INSPECT AUTOMATIC LIGHT CONTROL SENSOR

(a) Disconnect the L1 sensor connector.





(b) Connect the voltmeter's positive (+) lead to terminal 6 and the negative (-) lead to terminal 3.

(c) Measure the voltage of the connector.

Standard voltage:





(d) Measure the resistance of the connector.

Standard resistance:





(e) Reconnect the L1 sensor connector.





(f) Check the waveform of the L1 sensor connector.

:





HINT
If the ambient light becomes brighter, width A becomes narrower.

(f) If the result is not as specified, replace the automatic light control sensor.