Location of EWS II control module

According to Bentley's 3-series manual on page 610-4, the
EWS II control module is located in position #10. It appears that #10
also holds the cruise control module. How will I know which module is which.
I want to confirm the status of the EWS II module.
How can I do that?

thanks

Whats EWS module? first. And what does it do. And who told to play with it?