Actuator, Blend Door: Description

WARNING: This page is about a different car, the 2017 Jeep Cherokee. However, it is still accessible from the selected car via links, so may be relevant.

Courtesy of CHRYSLER GROUP, LLC

The blend door actuator used in the Automatic Temperature Control (ATC) heating and A/C system, is a reversible, 12 volt Direct Current (DC) servo motor (3), that is mechanically connected to the two blend-air doors. There is a blend door actuator located on both sides of the Heating, Ventilation, and Air Conditioning (HVAC) housing.

The blend door actuator is contained within a black molded plastic housing with an integral wire connector receptacle (4). An output shaft (2) with splines connects it to the blend door linkage and integral mounting tabs (1) allow the actuator to be secured to the HVAC housing. The blend door actuator requires mechanical indexing to the blend door linkage and is electronically calibrated by the HVAC module.

The A/C heater control must be calibrated each time an actuator motor is replaced. Refer to STANDARD PROCEDURE .