Inspection Procedure

WARNING: This page is about a different car, the 2007 Lexus SC 430. 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.
  
  Fig 1: Cleaning CD Surface
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
  
  OK:
  
  No dirt is on 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 a conventional record cleaner or antistatic preservative.
NG: CLEAN MAP DISC

OK: Go to next step
CHECK MAP DISC
1. Check that the map disc is not deformed or cracked.
  
  Fig 2: 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: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN DIAGNOSTIC TROUBLE CODE CHART