How do I access Blend door?

Hello,

Here is a guide that will show you what you are in for when doing the job plus diagrams below to help you see what it will be like on your car.

https://www.2carpros.com/articles/replace-blend-door-motor

Calibration of the Electronic Climate Control (ECC) module occurs whenever B+ is removed and then restored to the ECC module. During this calibration process the ECC module will automatically command the temperature door to the full HEAT position and then to full COLD position. The ECC module records both the minimum and maximum door positions and uses this data, which is in counts, to determine temperature door settings based on customer selected temperature settings.

IMPORTANT: Do not select or use the scan tool HVAC menu during the ECC module calibration period or the ECC module will not calibrate properly.

If the ECC module has been interrupted by scan tool operation the temperature door will become inoperative. If this should occur then:
Turn the ignition switch to the OFF position.
Disconnect the scan tool from the Data Link Connector (DLC) .
Remove the RDO BATT fuse for 10 seconds and then reinstall the fuse.
Place the ignition switch in the RUN position and wait 40 seconds for the ECC module to initialize.

Check out the diagrams (Below). Please let us know if you need anything else to get the problem fixed.

Cheers