A/C Switch
WARNING: This page is about a different car, the 2002 Dodge Grand Caravan, 2002 Dodge Caravan, 2002 Chrysler Voyager, and 2002 Chrysler Town & Country. However, it is still accessible from the selected car via links, so may be relevant.
The A/C Switch is a momentary contact switch. Toggling the switch results in the A/C-Heater Control Module sending a change of state message to the PCM to provide A/C compressor clutch activation or deactivation respectively. The A/C-Heater Control Module will only provide this request if EVAP function is found acceptable. The Power Switch must be on to make the A/C switch active. The switch status indicator illuminates when the switch is on. The A/C Switch setting is remembered during power down.