Ambient Light Sensor: Testing and Inspection

LIGHTING: AUTOMATIC LIGHT CONTROL SENSOR: ON-VEHICLE INSPECTION

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