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Ambient Temperature Sensor: Inspection

  1. REMOVE AMBIENT TEMPERATURE SENSOR 
    1. Disconnect the connector.
    2. Using a clip remover, pull out the sensor from bumper reinforcement.
      3. Fig 1: Pulling Out Sensor From Bumper Reinforcement
      G02945932Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  2. INSPECT AMBIENT TEMPERATURE SENSOR RESISTANCE 

    Measure resistance between terminals at each temperature as shown in the chart.

    TEMPERATURE SPECIFIED CONDITION

    Temperature Specified condition
    25°C (77°F) 1.6-1.8 kΩ
    50°C (122°F) 0.5-0.7 kΩ

    If resistance is not as specified, replace the sensor.

    Fig 2: Inspecting Ambient Temperature Sensor Resistance
    G02945933Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  3. INSTALL AMBIENT TEMPERATURE SENSOR 
    1. Push the sensor in bumper reinforcement.
    2. Connect the connector.
      3. Fig 3: Installing Ambient Temperature Sensor
      G02945934Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
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