what is apple.com/support-2002D ?

That usually seems to mean some problem connecting to Apple's servers. Does Internet Recovery work ? (Command Option R). If that fails too, try using ethernet if you don't already.

The error code does not give any information online, so one may have to contact an Apple Support specialist or a retail Store genius, about possible hardware issues in that machine. A basic search yields no answers, except I'd found an unanswered inquiry on a third-party site concerning the 2002D error in a MacBook/Air last year.

•Contact Apple Support:

http://www.apple.com/support/contact/

One place a vague reference to an Error 2002 (no D) is in regard to

•Resolve specific iTunes update and restore errors:

http://support.apple.com/kb/TS3694

Where this may have a basis in iTunes would be an inability of the

computer to connect to a server; this may be due to cable defect,

socket defect, or beyond hardware and go into something else.

•Resolve iOS (and Mac) update & restore errors in iTunes:

http://support.apple.com/kb/TS1275

But there should be little or no reason for a Hardware Test Message

unless the matter concerns a physical connection, or misrepresented

issue posing as one, when detected by the AHT. Or old software.

So I think a diagnostic may help discover if there is a hardware issue

and to what extent it may affect the use of the computer. If you are in

the vicinity of or fair driving distance to an Apple Store with Genius,

you can contact them to set an appointment to have this looked into

and take the computer in for testing. In the US & Canada a diagnostic

is a free service. The retail Apple page has info on how to schedule:

Genius Bar - http://www.apple.com/retail/geniusbar/

Hopefully you may find a resolution by checking into updates or other

methods suggested the 'resolve' links above, because software update

may include drivers for hardware that may cause a reported issue.

Good luck & happy computing! 🙂