Ambient Light Sensor: Testing and Inspection

LIGHTING: AUTOMATIC LIGHT CONTROL SENSOR:

ON-VEHICLE INSPECTION

1. INSPECT AUTOMATIC LIGHT CONTROL SENSOR





(a) Connect the voltmeter's positive (+) lead to terminal K19-6 (CLTB) and the negative (-) lead to terminal K19-3 (CLTE).
(b) Measure the voltage according to the value(s) in the table below.
Standard voltage:





(c) Measure the resistance according to the value(s) in the table below.
Standard resistance:





(d) Reconnect the K19 sensor connector.





(e) Check the waveform according to the value(s) in the table below.
Waveform:





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

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