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Home >> Toyota >> 2009 >> Tundra Base, 4.0 U >> Repair and Diagnosis >> External Pages >> Different car >> Section 116 (Navigation/Multi-Info Display) >> Navigation System >> Voice Recognition Difficulty >> Inspection Procedure

Inspection Procedure

WARNING: This page is about a different car, the 2008 Toyota Sequoia. However, it is still accessible from the selected car via links, so may be relevant.
  1. 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. 

    NG: SYSTEM'S VOICE RECOGNITION LEVEL VARIES DEPENDING ON VOICE AND PRONUNCIATION. THIS IS NOT A MALFUNCTION. 

    OK: Go to Next Step 

  2. CHECK MAP DISC 
    1. Check that the map disc is not deformed or cracked.

      OK: No deformations or cracks on map disc. 

    NG: REPLACE MAP DISC 

    Fig 1: Checking Map Disc
    G05652630Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to Next Step 

  3. CHECK MAP DISC 
    1. Check for dirt on the map disc surface.

      OK: No dirt is on map disc surface. 

      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 antistatic preservative.

    NG: CLEAN MAP DISC 

    Fig 2: Cleaning Map Disc
    G05652631Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: Go to Next Step 

  4. CHECK MICROPHONE (NAVIGATION CHECK MODE) 
    1. Enter the "Microphone and Voice Recognition Check" mode (See NAVIGATION CHECK MODE  ).
    2. When a 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:

      The recording limit is 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. 

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

    Fig 3: Identifying Microphone And Voice Recognition Check Mode
    G05652632Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

    OK: END