Inspection Procedure

WARNING: This page is about a different car, the 2007 Lexus GX 470. However, it is still accessible from the selected car via links, so may be relevant.

CHECK MAP DISC
1. Check for dirt on the map disc surface.
  OK: No dirt is on the map disc surface.
  
  Fig 1: Cleaning Disc Surface With Soft Cloth
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  HINT:
  
  If the disc is dirty, clean the disc by wiping the disc surface radially with a soft cloth.
  
  NOTE: Do not use a conventional record cleaner or anti-static preservative.
  
  NG: CLEAN MAP DISC
  
  OK: Go to Next Step
CHECK MAP DISC

Fig 2: Checking Disc For Deformed Or Cracked
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
1. Check that the map disc is not deformed or cracked.
  OK: No deformations or cracks appear on the map disc.
  
  NG: REPLACE MAP DISC
  
  OK: PROCEED TO NEXT INSPECTION PROCEDURE SHOWN IN PROBLEM SYMPTOMS TABLE