AUTOMATIC LIGHT CONTROL SENSOR INSPECTION


  1. INSPECT AUTOMATIC LIGHT CONTROL SENSOR (for Automatic Air Conditioning System)


    1. A01I1XTE07

      Disconnect the I61*1 or I184*2 automatic light control sensor connector.


      • *1: 10 Speaker

      • *2: 6 Speaker

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

      Standard Voltage
      Tester Connection Condition Specified Condition
      I61-6 (CLTB) - I61-3 (CLTE)*1 Ignition switch off Below 1 V
      Ignition switch ON 11 to 14 V
      I184-6 (CLTB) - I184-3 (CLTE)*2 Ignition switch off Below 1 V
      Ignition switch ON 11 to 14 V
      Standard Resistance
      Tester Connection Condition Specified Condition
      I61-3 (CLTE) - Body ground*1 Always Below 1 Ω
      I184-3 (CLTE) - Body ground*2 Always Below 1 Ω

      • *1: 10 Speaker

      • *2: 6 Speaker

      Text in Illustration
      *A 10 Speaker
      *B 6 Speaker
      *a

      Front view of wire harness connector

      (to Automatic Light Control Sensor)

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

    3. A01I1QDE03

      Reconnect the I61*1 or I184*2 automatic light control sensor connector.


      • *1: 10 Speaker

      • *2: 6 Speaker

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

      Text in Illustration
      *A 10 Speaker
      *B 6 Speaker
      *a

      Component with harness connected

      (Automatic Light Control Sensor)
    5. A01HZFME01

      Check the waveform.

      OK
      Tester Connection Tool Setting Condition Specified Condition
      I61-3 (CLTE) - I61-5 (CLTS)*1 5 V/DIV., 5 ms./DIV Ignition switch ON, light control switch in AUTO position Correct waveform is as shown
      I184-3 (CLTE) - I184-5 (CLTS)*2 5 V/DIV., 5 ms./DIV Ignition switch ON, light control switch in AUTO position Correct waveform is as shown

      • *1: 10 Speaker

      • *2: 6 Speaker

      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.

  2. INSPECT AUTOMATIC LIGHT CONTROL SENSOR (for Manual Air Conditioning System)


    1. A01HY4LE05

      Disconnect the I185 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
      I185-3 (CLTB) - I185-5 (CLTE) Ignition switch off Below 1 V
      Ignition switch ON 11 to 14 V
      Standard Resistance
      Tester Connection Condition Specified Condition
      I185-5 (CLTE) - Body ground Always Below 1 Ω
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Automatic Light Control Sensor)

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

    3. A01HZ57E08

      Reconnect the I185 automatic light control sensor connector.

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

      Text in Illustration
      *a

      Component with harness connected

      (Automatic Light Control Sensor)
    5. A01HZFME01

      Check the waveform.

      OK
      Tester Connection Tool Setting Condition Specified Condition
      I185-5 (CLTE) - I185-4 (CLTS) 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.