Ridgeline 2007-2008

Intake Air Temperature Sensor

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Operation



Specific to:

Honda Ridgeline 2006-2008

The IAT sensor is a temperature dependent resistor (thermistor). The resistance of the thermistor decreases as the intake air temperature increases.

Removal & Installation



Specific to:

Honda Ridgeline 2006-2008

  1. Before servicing the vehicle, refer to the precautions.
  2.  
  3. Remove the intake manifold cover.
  4.  
  5. Disconnect the IAT sensor 2P connector (A).
  6.  
  7. Remove the IAT sensor (B).
  8.  

To install:

  1. Install the parts in the reverse order of removal with a new O-ring (C).
  2.  
  3. Tighten to 13ft. lbs. (18 Nm).
  4.  

Testing



Specific to:

Honda Ridgeline 2006-2008

  1. Connect an HDS or equivalent scan tool to the data link connector (DLC) located under the driver's side of the dashboard.
  2.  
  3. Turn the ignition switch ON .
  4.  
  5. Check the IAT SENSOR in the DATA LIST.
  6.  
  7. Start the engine and allow it to come to operating temperature.
  8.  
  9. If voltage is not within specification as shown in the chart, inspect the connectors and wiring harness.

    Click image to see an enlarged view

    Fig. IAT sensor voltage chart

  10.  
  11. If no faults are found, replace the sensor.
  12.  

 
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