Ambient Light Sensor: Testing and Inspection

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.




c. Measure the resistance according to the value(s) in the table.
d. Reconnect the K19 sensor connector.







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

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

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