AUTOMATIC LIGHT CONTROL SENSOR ON-VEHICLE INSPECTION

PROCEDURE


  1. INSPECT AUTOMATIC LIGHT CONTROL SENSOR


    1. A00YWZCC04
      *a

      Component with harness connected

      (Automatic Light Control Sensor)

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      6 (CLTB) - 3 (CLTE) Ignition switch on (IG) 11 to 14 V

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

      Standard Resistance
      Tester Connection Switch Condition Specified Condition
      3 (CLTE) - Body ground Always Below 1 Ω

    3. Reconnect the automatic light control sensor connector.

    4. A00YWR8N01

      Check the waveform of the automatic light control sensor connector.

      Waveform
      Tester Connection Tool Setting Switch Condition Specified Condition
      3 (CLTE) - 5 (CLTS) 5 V/DIV., 5 msec./DIV. Ignition switch on (IG), headlight dimmer switch on 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, there may be a malfunction in the automatic light control sensor.