Camry 2007

Intake Air Temperature Sensor

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Operation



Specific to:

Toyota Camry 2007-2008

The intake air temperature sensor, mounted on the mass air flow meter, monitors the intake air temperature. The intake air temperature sensor has a built-in thermistor with a resistance that varies according to the temperature of the intake air. When the intake air temperature is low, the resistance of the thermistor increases. When the temperature is high, the resistance drops. These variations in resistance are transmitted to the ECM as voltage changes.

Removal & Installation



Specific to:

Toyota Camry 2007-2008

See Mass Air Flow Meter.

Testing



Specific to:

Toyota Camry 2007-2008

  1. Connect the scan tool to the ODB II connector.
  2.  
  3. Turn the ignition switch to the ON position.
  4.  
  5. Turn the scan tool on.
  6.  
  7. Select the following menu items: DIAGNOSIS/ENHANCED OBD II /DATA LIST/PRIMARY/INTAKE AIR.
  8.  
  9. Read the value displayed on the scan tool (Standard: Same as actual IAT):
    1. If temperature is -40°F (-40°C), check for open in wire harness.
    2.  
    3. If temperature is 284°F (140°C) or higher, check for short in wire harness.
    4.  
    5. If temperature is same as actual IAT, check for intermittent problems.
    6.  

  10.  
  11. Complete testing of the Intake Air Temperature sensor system requires proprietary testing equipment.
  12.  

 
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