Sorting out my new to me 2015 V60 T5 FWD

I have code U012100

from NHTSA website:
"Fault Code U012100 may be caused by poor connection at the X209 Ground Junction. If DTC is present do the following: 1. Disconnect the battery. 2. Remove all connections at the X209 Ground Junction. 3. Thoroughly clean all surfaces. 4. Reassemble connections. 5. Apply protective coating. The X209 ground junction is located on the drivesside bulkhead"

Anyone have service manual or info on where this ground block really is?? I don't mind digging but hoping for more specific location...?

Thanks