System Diagram

Air Conditioning & Heater Vacuum Hose Routing. Front Wheel Drive Models (Except: Acclaim, Horizon, Omni & Spirit):

In the OFF position, ports 4 and 7 are vented. All others have vacuum applied.

NOTE:
a. When in the RECIRC.(AUTO) mode, vacuum is applied to ports 1 and 3 but may also appear at ports 2, 4, 5, and 6.
b. When in the RECIRC.(PART) mode, vacuum is applied to ports 1, 3, and 7 but may also appear at ports 2, 4, 5, and 6.