AUTOMATIC LIGHT CONTROL SENSOR INSPECTION

PROCEDURE


  1. INSPECT AUTOMATIC LIGHT CONTROL SENSOR


    1. A00Y5MNC02
      *a

      Front view of wire harness connector

      (to Automatic Light Control Sensor)

      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) Ignition switch off Below 1 V
      Ignition switch ON 11 to 14 V
      Standard Resistance
      Tester Connection Condition Specified Condition
      F2-3 (CLTE) - Body ground Always Below 1 Ω

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

    3. A00Y679C02
      *a

      Component with harness connected

      (Automatic Light Control Sensor)

      Reconnect the F2 automatic light control sensor connector.

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

    5. A00Y72XN01

      Check the waveform.

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

      Tech Tips

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

      If the result is not as specified, the automatic light control sensor may be malfunctioning.