Ambient Light Sensor: Testing and Inspection

LIGHTING (EXT): AUTOMATIC LIGHT CONTROL SENSOR: ON-VEHICLE INSPECTION

1. INSPECT AUTOMATIC LIGHT CONTROL SENSOR

(a) Measure the voltage according to the value(s) in the table below.





Standard Voltage:





(b) Measure the resistance according to the value(s) in the table below.

Standard Resistance:





(c) Reconnect the F9 sensor connector.

(d) Check the waveform of the F9 sensor connector.





Waveform:





(d) If the result is not as specified, there may be a malfunction in the sensor.

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