There is only one blower. It's one in the same.

The lack of a blower can be caused by a multitide of items. It can be a fuse to the blower, the blower itself, the blower controller, the blower resistors, or the CCU.

It's bit of a task to run it all down. I struggled with it on the SD for a month.

First thing to do is to pull the passenger side kick panel and access the blower. There is a plug right in front of the blower. Disconnect the plug and apply 12V and a ground to the plug and see if the blower will run. If it runs, you have eliminated the blower from the issue. If it does not run, you need to remove the blower and replace it or clean up the bearings and see if you can get it to run.

Report back when you have made it this far.