AUTOMATIC LIGHT CONTROL SENSOR ON-VEHICLE INSPECTION

PROCEDURE

  1. INSPECT AUTOMATIC LIGHT CONTROL SENSOR

    1. E139361C04

      *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. E162197N01

      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
      Tip:

      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.