WIS = Workshop Information System - The factory shop manual. It is more help to experienced techs than to beginners.
ECP = Electronic Parts Catalog
ASRA data, basis for creating orders, invoices and warranty applications. Not much use for us.

 

ECP

**EPC

In WIS and EPC, you should enter your VIN number and it'll list all manuals and parts that your car has, including factory options, as they are encoded into your VIN number