A/C Switch
WARNING: This page is about a different car, the 2001 Acura Integra, 2000 Acura Integra, and 1999 Acura Integra. However, it is still accessible from the selected car via links, so may be relevant.
Remove heater control panel. Disconnect 14-pin connector. With A/C switch on, check for continuity between terminals No. 11 and 12 of the 14-pin connector. See Fig 1 . There should be current flow in only one direction.