The HVAC door calibration must be performed after a HVAC door DTC has been repaired or an HVAC door actuator has been replaced. Refer to the follow procedure:

1. Turn OFF the ignition.
2. Press and hold the following HVAC control module switches:

•	A/C request switch

•	Recirculation switch

•	Rear defrost switch

3. While pressing the switches, turn the ignition to the RUN position.
4. Wait 5 seconds.
5. Press the recirculation switch.
6. Observe the A/C request switch LED and the rear defrost switch LED. The LED's will flash slowly to indicate calibration mode.
7. When the calibration procedure is complete the LED's will flash quickly.
8. Turn OFF the ignition.

When the battery positive voltage is removed from the HVAC control module the system will perform a calibration of the actuators automatically. Wait 60 seconds after the ignition is turned to the Run position.