Control Assembly: Description and Operation
HVAC Control ModuleHVAC Control Module:
The HVAC control module regulates the operation of the various actuator motors. The actuator motors are used to move the mode, blend-air, and Recirculation doors.
The control module is included in the A/C control head located on the instrument panel. The control head includes the blower speed switch, rear wiper and washer operation, front & rear window defogger, recirculation door operation, and A/C compressor operation if equipped.
NOTE: The Recirculation function on the HVAC control module automatically defaults to the OFF position after a ignition key cycle. To reactivate the Recirculation function, the Recirculation button must be repressed.
NOTE: The rear blower speed switch is serviced separately from the control head.