Journey FWD V6-3.5L (2009)
The recirculation door actuator (1) is a reversible, 12 volt direct current (DC) servo motor, which is connected directly to the pivot shaft lever of the
recirculation-air door. The recirculation door actuator is located on the right side of the HVAC air inlet housing.
The recirculation door actuator is contained within a black molded plastic housing with an integral wire connector receptacle (2), an output shaft with
splines (3) connect it to the recirculation door and three integral mounting tabs (4) allow the actuator to be secured to the air inlet housing. The
recirculation door actuator does not require mechanical indexing to the recirculation-air door, as it is electronically calibrated by the A/C-heater control.
The A/C-heater control must be recalibrated each time an actuator motor is replaced See: Testing and Inspection/Component Tests and General
Diagnostics/HVAC System Test.
The recirculation door actuator is interchangeable with the actuators for the blend and mode-air doors.
Recirculation Door Actuator - Operation
OPERATION
The recirculation door actuator is connected to the A/C-heater control through the vehicle electrical system by a dedicated two-wire lead and connector
of the instrument panel wire harness. The recirculation door actuator can move the recirculation-air door in two directions. When the A/C-heater control
pulls the voltage on one side of the motor connection high and the other connection low, the recirculation-air door will move in one direction. When the
A/C-heater control reverses the polarity of the voltage to the motor, the recirculation-air door moves in the opposite direction. Once the A/C-heater
control makes the voltage to both connections high or both connections low, the recirculation-air door stops and will not move.
The A/C-heater control uses a pulse-count positioning system to monitor the operation and relative position of the recirculation door actuator and the
recirculation-air door. The A/C-heater control learns the recirculation-air door stop positions during the calibration procedure and will store a diagnostic
trouble code (DTC) for any problems it detects in the recirculation door actuator circuits See: Powertrain Management/Computers and Control
Systems/Testing and Inspection/Diagnostic Trouble Code Tests and Associated Procedures.
The recirculation door actuator cannot be adjusted or repaired and it must be replaced if inoperative or damaged.
