Error Code: 160-2173
If you are receiving this error code, please contact us at 1-800-255-3700. Specially trained representatives will be available to assist you, 6:00am - 7:00pm (PST), seven days a week.
Unfortunately, but Nintendo's Error Code Lookup doesn't really give any explanation as to what the 160-2173 error code might mean, so probably the best thing to do is give them a call as suggested and the service representative will be able to help you.