Please help to identify the part: Vent Wax Motor

I have run the test cycle and got code 10-2 at the end.
The tech sheet says this is Vent Wax Motor problem

I cannot find such part on the diagram.

Can someone help me to find what is it and where is it?

Here are your parts
Parts for KitchenAid KUDE48FXSS4 / - AppliancePartsPros.com

Here are the parts for an earlier version of your unit (FXBL0)
Parts for KitchenAid KUDE48FXBL0 Dishwasher - AppliancePartsPros.com

I do not think you unit has an automated vent.

If you look at section 03 item 5 of the FXBL0 unit you see the vent with the wax motor.
If you look at your unit’s same section you will see there is no vent on the door