AUTOMATIC LIGHT CONTROL SENSOR INSPECTION


  1. INSPECT AUTOMATIC LIGHT CONTROL SENSOR


    1. A003RVIE06

      Disconnect the F2 automatic light control sensor connector.

    2. Measure the voltage and resistance according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      F2-1 (CLTB) - F2-3 (CLTE) Power switch on (IG) 11 to 14 V
      Standard Resistance
      Tester Connection Condition Specified Condition
      F2-3 (CLTE) - Body ground Always Below 1 Ω
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Automatic Light Control Sensor)

      If the result is not as specified, there is a malfunction on the wire harness side.

    3. A003SWOE10

      Reconnect the automatic light control sensor connector.

    4. Connect an oscilloscope to the automatic light control sensor connector.

    5. A003RHVE01
      Text in Illustration
      *1

      Component with harness connected

      (Automatic Light Control Sensor)

      Check the waveform.

      OK
      Tester Connection Tool Setting Condition Specified Condition
      F2-3 (CLTE) - F2-4 (CLTS) 5 V/DIV., 5 ms./DIV Power switch on (IG), light control switch in AUTO Correct waveform is as shown

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

      Tech Tips

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