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:





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.