AUTOMATIC LIGHT CONTROL SENSOR INSPECTION

PROCEDURE

  1. INSPECT AUTOMATIC LIGHT CONTROL SENSOR

    1. B157083C07

      *a

      Front view of wire harness connector

      (to Automatic Light Control Sensor)

      Disconnect the F3 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

      F3-1 (CLTB) - F3-2 (CLTE)

      Ignition switch off, dimmer switch off, 2 minutes after all doors closed

      Below 1 V

      Ignition switch ON

      11 to 14 V

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      F3-2 (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. E259758C09

      *a

      Component with harness connected

      (Automatic Light Control Sensor)

      Reconnect the F3 automatic light control sensor connector.

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

    5. E276298N01

      Check the waveform.

      OK

      Tester Connection

      Tool Setting

      Condition

      Specified Condition

      F3-4 (CLTS) - F3-2 (CLTE)

      2 V/DIV., 10 ms./DIV.

      Ignition switch ON

      Correct waveform is as shown
      Tip:

      The communication waveform changes according to the surrounding brightness.

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