Okay, here are some diagrams to help along the way. The first is the wiring diagram for the re-circulation door actuator. It will be located behind/under the glove box. You will have to find the actuator according to the wiring colors because there is more than one. You will see its dark blue/light blue and dark blue/tan, these 2 wires will both be 12 volts depending on the direction the door is moving. You can actually pull the door actuator out and change the controls and watch it move. This one is only 2 screws I believe. Checking for power while changing the controls is how you would diagnose this. If power is present and actuator is not moving then it has failed and unfortunately these actuators need to be calibrated using a scan tool. The 3rd picture is the connector, there should only be 2 pins at this connector, one on each side as you can see. Pin 6 and pin 1. Using a scan tool, the body control module can also be checked for diagnostic trouble codes which can ad in repairs. These are the basics concerning the re-circulation door. Hopefully this will be helpful.
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Thursday, February 27th, 2020 AT 11:25 AM