Inspection Procedure

WARNING: This page is about a different car, the 2004 Lexus LS 430. However, it is still accessible from the selected car via links, so may be relevant.

CHECK CONDITIONS
1. Check if the system's voice recognition level is low with only one particular voice.
  OK: The system's voice recognition level is low with any voice.
NG: SYSTEM'S VOICE RECOGNITION LEVEL VARIES DEPENDING VOICE AND PRONUNCIATION. THIS IS NOT A MALFUNCTION

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 1: Identifying Map Disc
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: REPLACE THE MAP DISC

OK: Go to next step.
CHECK THE MAP DISC
1. Check for dirt on the map disc surface.
  OK: No dirt is on the map disc surface.
HINT:

If dirt is on the map disc surface, wipe it with a soft cloth from inside to outside in a radial direction.

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

NG: CLEAN THE MAP DISC

OK: Go to next step.

Fig 2: Checking Map Disc
Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NAVIGATION CHECK MODE (MICROPHONE CHECK)
1. Enter the "Microphone Check" mode (see NAVIGATION CHECK MODE (MICROPHONE CHECK) )
2. Follow the directions on the screen. Check if the word recognition indicator is displayed in green in each item.
  OK: All check items are recognized.
  
  Fig 3: Identifying Multi-Display - Microphone Check
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (SEE PROBLEM SYMPTOMS TABLE )

OK: NORMAL OPERATION