AUTOMATIC LIGHT CONTROL SENSOR ON-VEHICLE INSPECTION

PROCEDURE


  1. INSPECT AUTOMATIC LIGHT CONTROL SENSOR

    A005GGYE01

    1. Disconnect the automatic light control sensor connector.

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      4 (CLTS) - 5 (CLTE) Ignition switch off Below 1 V
      Ignition switch on 11 to 14 V
      Text in Illustration
      *a

      Component with harness connected

      (to Automatic Light Control Sensor)

      If the result is not as specified, repair or replace the wire harness or connector.

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

      Standard Resistance
      Tester Connection Specified Condition
      5 (CLTE) -Body ground Below 1 V

      If the result is not as specified, repair or replace the wire harness or connector.

    4. Reconnect the automatic light control sensor connector.

    5. A005HZ2E01
      Text in Illustration
      *a

      Rear view of wire harness connector

      (to Automatic Light Control Sensor)

      Connect an oscilloscope to the automatic light control sensor connector.

    6. A005JE8E01

      Check the waveform.

      OK
      Tester Connection Tool Setting Condition Specified Condition
      4 (CLTS) - 3 (CLTB) 5 V/DIV., 5 ms./DIV Ignition switch ON, light control switch in AUTO Correct waveform is as shown

      Tech Tips

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

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