Outside Air Temperature Sensor Test
WARNING: This page is about a different car, the 2003 Acura 3.2CL and 2002 Acura 3.2CL. However, it is still accessible from the selected car via links, so may be relevant.
Dip the sensor in ice water, and measure the resistance. Then pour hot water on the sensor, and check for a change in resistance.
Compare the resistance reading between the No. 1 and No. 2 terminals of the outside air temperature sensor with the specifications shown in the chart; the resistance should be within the specifications.