Inspection Procedure

1. Check that the map disc is not deformed or cracked.
   Fig 1: Checking CD For Deformed Or Cracked

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK: 

   No deformations or cracks on map disc. 

NG: REPLACE MAP DISC 

OK: Go to next step 

1. Check for dirt on the map disc surface.
   Fig 2: Cleaning CD Surface

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   OK: 

   No dirt is on the map disc surface. 

   HINT:

   If the disc is dirty, clean the disc by wiping the disc's surface radially with a soft cloth.

   NOTE: Do not use conventional record cleaner or anti-static preservative.

NG: CLEAN MAP DISC 

OK: Go to next step 

1. Enter the Navigation Check mode's Microphone Check (see NAVIGATION CHECK MODE  ).
   Fig 3: Display Navigation Check Mode Microphone Check Screen

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. Follow the directions on the screen. Check that the word recognition indicator is displayed in green in each item.

   OK: 

   All check items are recognized. 

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

OK: REPLACE NAVIGATION ECU