O erro não ocorrerá até que você tente anexar o TableDef
Dim myDB As DAO.Database
Dim myTabledef As DAO.TableDef
On Error GoTo Err_handler
Set myDB = CurrentDb
scn = "odbc;driver=SqLServer;" & _
"DATABASE=myDB;SERVER=myServer;Trusted_Connection=Yes;"
Set myTabledef = myDB.CreateTableDef("l_table")
myTabledef.Connect = scn
myTabledef.SourceTableName = "Table1"
myDB.TableDefs.Append myTabledef
Err_handler:
Debug.Print Err.Number & " " & Err.Description