Solar Sensor On-Vehicle Inspection

Vehicle Interior. Land Cruiser. Urj200, 202 Grj200 Vdj200
Heating Air Conditioning. Land Cruiser. Urj200, 202 Grj200 Vdj200

  1. INSPECT AUTOMATIC LIGHT CONTROL SENSOR

Solar Sensor -- On-Vehicle Inspection



1. INSPECT AUTOMATIC LIGHT CONTROL SENSOR

  1. Disconnect the automatic light control sensor connector.



    Land Cruiser. Urj200, 202 Grj200 Vdj200.Heating Air Conditioning.Air Conditioning System (For Automatic Air Conditioning System).Solar Sensor On-Vehicle Inspection

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

    Standard Resistance:
    Tester Connection
    		Switch Condition
    		Specified Condition
    F91-2 (CLTE) - Body ground
    		Always
    		Below 1 Ω
    Standard Voltage:
    Tester Connection
    		Switch Condition
    		Specified Condition
    F91-1 (CLTB) - F91-2 (CLTE)
    		Ignition switch off
    		Below 1 V
    Ignition switch on (IG)
    		11 to 14 V
    If the result not as specified, repair or replace the wire harness.
    Text in Illustration
    *a
    		Front view of wire harness connector
    (Automatic Light Control Sensor)

  1. Reconnect the automatic light control sensor connector.



    Land Cruiser. Urj200, 202 Grj200 Vdj200.Heating Air Conditioning.Air Conditioning System (For Automatic Air Conditioning System).Solar Sensor On-Vehicle Inspection

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



    Land Cruiser. Urj200, 202 Grj200 Vdj200.Heating Air Conditioning.Air Conditioning System (For Automatic Air Conditioning System).Solar Sensor On-Vehicle Inspection

  1. Check the waveform.

    Waveform:
    Tester Connection
    		Tool Setting
    		Condition
    		Specified Condition
    F91-4 (CLTS) - F91-2 (CLTE)
    		2 V/DIV., 10 msec./ DIV.
    		Ignition switch on (IG), Light control switch in AUTO
    		Correct waveform is as shown
    HINT:
    The communication waveform changes according to the surrounding brightness.
    If the result is not as specified, replace the automatic light control sensor.
    Text in Illustration
    *a
    		Component with harness connected
    (Automatic Light Control Sensor)