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Home >> Acura >> 2009 >> TSX Standard >> Repair and Diagnosis >> Heating, Ventilation & A/C (HVAC) >> HVAC Control Systems >> Automatic HVAC System (4-CYL) >> Climate Control >> Outside Air Temperature Sensor Test

Outside Air Temperature Sensor Test

  1. Remove the outside air temperature sensor (see OUTSIDE AIR TEMPERATURE SENSOR TEST )
  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: Outside Air Temperature Sensor Resistance Graph
    G05994717Courtesy 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 TEST )
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