AUTOMATIC LIGHT CONTROL SENSOR INSPECTION

PROCEDURE

  1. INSPECT AUTOMATIC LIGHT CONTROL SENSOR

    1. E142628C02

      *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. E259596C02

      *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. E223978N01

      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
      Tip:

      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.