SOLAR SENSOR INSPECTION

PROCEDURE


  1. INSPECT AUTOMATIC LIGHT CONTROL SENSOR


    1. B004HQZC65
      *a

      Front view of wire harness connector

      (to Automatic Light Control Sensor)

      Disconnect the M1 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
      M1-1 (CLTB) - M1-2 (CLTE) Ignition switch off Below 1 V
      Ignition switch ON 11 to 14 V
      Standard Resistance
      Tester Connection Condition Specified Condition
      M1-2 (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. Connect the M1 automatic light control sensor connector.

    4. Connect an oscilloscope to terminals M1-2 (CLTE) and M1-4 (CLTS) of the automatic light control sensor connector and check the waveform.

      B004OD1C05
      *a

      Component with harness connected

      (Automatic Light Control Sensor)

      		 *b Waveform
      OK
      Tester Connection Condition Tool Setting Specified Condition
      M1-2 (CLTE) - M1-4 (CLTS) Ignition switch ON 2 V/DIV., 10 ms./DIV.

      Pulse generation

      (See waveform)

      Tech Tips

      The communication waveform changes according to the surrounding brightness.

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