AUTOMATIC LIGHT CONTROL SENSOR ON-VEHICLE INSPECTION

PROCEDURE


  1. INSPECT AUTOMATIC LIGHT CONTROL SENSOR


    1. A000R28E01

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

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      O1-6 (CLTB) - O1-3 (CLTE) Power 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
      O1-3 (CLTE) - Body ground Always Below 1 Ω

    3. Reconnect the O1 sensor connector.

    4. A000S29E05
      Text in Illustration
      *a

      Component with harness connected

      (Automatic Light Control Sensor)

      Check the waveform of the O1 sensor connector.

      Waveform
      Tester Connection Tool Setting Switch Condition Specified Condition
      O1-3 (CLTE) - O1-5 (CLTS) 5 V/DIV., 5 msec./ DIV. Power 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 sensor.