Grand Cherokee 4WD V8-4.7L (2003)
Air Door Actuator / Motor: Description and Operation
BLEND DOOR ACTUATOR
The blend door for all models is actuated by an electric actuator, while the AZC system uses 2 separate actuators to allow the driver and passenger
to select individual comfort levels. In the following procedures, service for both types of actuators is covered.
MODE DOOR ACTUATOR
The mode door actuators for vehicles equipped with the standard equipment manual temperature control system are vacuum controlled. The
optional Automatic Zone Control (AZC) system uses electric motors to actuate all mode doors. The service procedures for both types of actuators
are covered by the following procedures.
RECIRCULATION DOOR ACTUATOR
The recirculation door actuator for vehicles equipped with the standard equipment manual temperature control system is vacuum controlled. The
optional Automatic Zone Control (AZC) system uses an electric recirculation door actuator. In the following procedures, service for both types of
actuators is covered.
