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Inspection [08/2013 - ]

WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
  1. INSPECT SOLAR SENSOR (AUTOMATIC LIGHT CONTROL SENSOR) 
    1. Disconnect the J1 solar sensor (automatic light control sensor) connector.
      Fig 1: Solar Sensor (Automatic Light Control Sensor) Connector End View J1
      GTY416664Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    2. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      J1-6 (CLTB) - J1-3 (CLTE) Power switch off Below 1 V
      J1-6 (CLTB) - J1-3 (CLTE) Power switch on (IG) 11 to 14 V
      TEXT IN ILLUSTRATION

      *a Front view of wire harness connector
      (to Solar Sensor (Automatic Light Control Sensor))

      If the voltage is not as specified, repair or replace the wire harness or connector.

    3. Reconnect the J1 solar sensor (automatic light control sensor) connector.
      Fig 2: Solar Sensor (Automatic Light Control Sensor) Connector End View J1
      GTY418751Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
    4. Turn the power switch on (IG).
    5. Measure the voltage according to the value(s) in the table below.

      Standard Voltage

      Tester Connection Condition Specified Condition
      J1-1 (TSL) - J1-3 (CLTE) Sensor is exposed to electric light 0.8 to 4.3 V
      J1-1 (TSL) - J1-3 (CLTE) Sensor is covered with a cloth Below 0.8 V
      J1-2 (TSR) - J1-3 (CLTE) Sensor is exposed to electric light 0.8 to 4.3 V
      J1-2 (TSR) - J1-3 (CLTE) Sensor is covered with a cloth Below 0.8 V
      TEXT IN ILLUSTRATION

      *a Component with harness connected
      (Solar Sensor (Automatic Light Control Sensor))
      NOTE:
      • 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 1 (2) and the negative (+) lead to terminal 3 of the solar sensor (automatic light control sensor).
      • Do not bring the positive and negative tester probes too close to each other as a short circuit may occur.

      HINT: 

      • Use an incandescent light for inspection. Bring it within about 30 cm (11.8 in.) of the solar sensor (automatic light control sensor).
      • As the inspection light is moved away from the sensor, the voltage decreases.

      If the voltage is not as specified, replace the solar sensor (automatic light control sensor).

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