Current Position Display does not Appear

WARNING: This page is about a different car, the 2006 Toyota Camry Solara. However, it is still accessible from the selected car via links, so may be relevant.

CHECK RADIO AND NAVIGATION ASSEMBLY
1. Check if a map disc is inserted in the map disc slot.
  OK: A map disc is inserted.
  
  Fig 1: Checking Map Disc Is Inserted In Map Disc Slot
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: INSERT MAP DISC IN "MAP" SIDE SLOT

OK: GO TO NEXT STEP
CHECK MAP DISC
1. Check that the map disc is not deformed or cracked.
  OK: No deformations or cracks appear on the map disc.
  
  Fig 2: Checking Map Disc For Deformed Or Cracked
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPLACE MAP DISC

OK: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE