If NAVI control unit detects that DVD-ROM map is not inserted

WARNING: This page is about a different car, the 2003 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.

CHECK DVD-ROM
1. Make sure identified DVD-ROM map is inserted.
OK or NG
1. OK : Replace NAVI control unit.
2. NG : Insert identified DVD-ROM map.