Always a good idea to run a self-test/reset on the climate control system once you have all the new parts in. Lost my blend door a few years back and it still didn't work right until I ran the procedure. Here is one post that included most if not all of the TSB
To enter the self-test, press the OFF and FLOOR buttons simultaneously and then press the AUTO button within two seconds . The display will show a dashed line in the center of the climate control display window of the Integrated Control Panel (ICP
1. The test may run as long as 30 seconds . Record all DTCs displayed. The self-test is completed when 888 appears in the center of the climate control display window of the ICP
2. If any DTCs appear during the self-test, post the # and I have the chart of what is wrong somewhere.
3. To exit the self-test and retain all intermittent DTCs, press the "-" (COOLER) side of the TEMP button. The RCC
module will exit the self-test and retain all intermittent DTCs.
To exit the self-test and clear all DTCs, press the FRONT DEFROST button. All RCC
module DTCs will be cleared. Always exit the self-test before powering the system down (system turned off). Intermittent DTCs will be deleted after 80 ignition switch ON cycles after the intermittent condition occurs. If you exit the self test this way, it will recalibrate the blend door.
Simple step by step. Key is the last sentence.
The recalibration runs the blend door motor full hot, and full cold and establishes the limits in memory so it does not max out to the physical limits and bind the gears. If the battery runs down, it can cause the EATC
to loose its memory and quit. Happened to me. No need to recalibrate unless the battery has been run down or the blend door motor replaced. Then it is important.