Solar Sensor On-Vehicle Inspection

Heater & Air Conditioning System. Lexus Gs430, Gs300. Uzs190 Grs190
Air Conditioning. Lexus Gs430, Gs300. Uzs190 Grs190

  1. CHECK AIR CONDITIONING SOLAR SENSOR

  2. INSPECT SOLAR SENSOR

Solar Sensor -- On-Vehicle Inspection



1. CHECK AIR CONDITIONING SOLAR SENSOR


    Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Solar Sensor On-Vehicle Inspection

  1. Disconnect the A/C solar sensor connector.

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

    Standard resistance:
    Tester Connection
    		Condition
    		Specified Condition
    L1-3 (CLTE) - Body ground
    		Always
    		Below 1 Ω

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

    Standard voltage:
    Tester Connection
    		Condition
    		Specified Condition
    L1-6 (CLTB) - L1-3 (CLTE)
    		Engine switch on (IG)
    		10 to 14 V


2. INSPECT SOLAR SENSOR


    Lexus Gs430, Gs300. Uzs190 Grs190.Air Conditioning.Air Conditioning System.Solar Sensor On-Vehicle Inspection

  1. Remove the A/C solar sensor with the connector still connected.

  1. Apply battery voltage between terminals 6 (CLTB) and 3 (CLTE) of the A/C solar sensor.

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

    Standard voltage:
    Tester Connection
    		Condition
    		Specified Condition
    1 (TSL) - 3 (CLTE)
    		Sensor is subjected to electric light
    		0.8 to 4.3 V
    1 (TSL) - 3 (CLTE)
    		Sensor is covered by a cloth
    		Below 0.8 V
    NOTICE:
    The connection procedure for using a digital tester such as a TOYOTA electrical tester is shown above. When using an analog tester, connect the positive (+) lead to terminal 2 and negative (-) lead to terminal 1 of the solar sensor.
    HINT:
    1. As the inspection light is moved away from the sensor, the voltage increases.
    1. Use an incandescent lamp for inspection. Bring it about 30 cm (11.8 in.) from the solar sensor.