Inspection Procedure

WARNING: This page is about a different car, the 2008 Lexus IS F. However, it is still accessible from the selected car via links, so may be relevant.

CHECK CONDITION
1. Check if the system's voice recognition level is low by using only one particular voice
  OK: System's voice recognition level is low with any voice.
  
  HINT
  
  System's voice recognition level varies depending on voice and pronunciation. This is not a malfunction
NG: END

OK: Go to Next Step
CHECK MAP DISC
1. Check that the map disc is not deformed or cracked.
  OK: No deformations or cracks on the map disc.
NG: REPLACE MAP DISC

OK: Go to Next Step
CHECK MAP DISC
1. Check for dirt on the map disc surface
  OK: No dirt is on the map disc surface.
  
  NOTE: Do not use a conventional record cleaner or antistatic preservative.
  
  HINT.
  
  If the disc is dirty, clean the disc by wiping the disc surface radially with a soft cloth
  
  Fig 2: Cleaning Disc Surface Soft Cloth
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: CLEAN MAP DISC

OK: Go to Next Step
CHECK MICROPHONE (NAVIGATION CHECK MODE)
1. Enter the "MICROPHONE & VOICE RECOGNITION CHECK" mode (See OPERATION CHECK ).
2. When voice is input into the microphone, check that the microphone input level meter changes according to the input voice
3. Push the recording switch and perform voice recording.
  HINT:
  
  Voice can be recorded up to 5 seconds
4. Check that the recording indicator remains on while recording and that the recorded voice is played normally without noise or distortion
  OK: All check results are normal.
  
  Fig 3: Diagnosis Display Screen - Microphone & Voice Recognition Check Mode
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See PROBLEM SYMPTOMS TABLE )

OK: END