A/C Switch

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.