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Outside Air Temperature Sensor Test

WARNING: This page is about a different car, the 2008 Acura TSX, 2007 Acura TSX, 2006 Acura TSX, 2005 Acura TSX, and 2004 Acura TSX. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the outside air temperature sensor (see OUTSIDE AIR TEMPERATURE SENSOR REPLACEMENT  ).
  2. Dip the sensor in ice water, and measure the resistance. Then pour warm water on the sensor, and check for a change in resistance.
  3. Compare the resistance reading between the No. 1 and No. 2 terminals of the outside air temperature sensor with the specifications shown in the graph; the resistance should be within the specifications.
    Fig 1: Checking Resistance Reading Between No. 1 And No. 2 Terminals Of Outside Air Temperature Sensor
    G05492665Courtesy of AMERICAN HONDA MOTOR CO., INC.
  4. If the resistance is not as specified, replace the outside air temperature sensor (see OUTSIDE AIR TEMPERATURE SENSOR REPLACEMENT  ).
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