The HVAC control module DTCs will clear when the rear defrost switch is pressed during diagnostic mode. 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 rear defrost switch.