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 CELLULAR PHONE
1. Check if the other side can hear your voice properly
  OK: Your voice can be heard correctly.
NG: REPLACE CELLULAR PHONE

OK: Go to Next Step
CHECK SETTINGS
1. Check if the mute switch is set to ON
  OK: Mute switch is not set to ON.
NG: TURN MUTE SWITCH OFF

OK: Go to Next Step
CHECK SETTINGS
1. Enter the "Handsfree Voice Quality Set" mode (See OPERATION CHECK )
2. Check if the Send Voice Level is set to "0"
  HINT
  
  The Send Voice Level can be set to 11 different levels, -5 to +5, with a 3 dB difference
3. Check if the Send Voice Level is set to the minimum or maximum level
  HINT
  
  When the Send Voice Level is set to the minimum or maximum level, the sound may be distorted
  
  OK: The Send Voice Level is set to "0".
  
  Fig 2: Diagnosis Display Screen - Handsfree Voice Quality Set
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: SET SEND VOICE LEVEL TO "0"

OK: Go to Next Step
CHECK MICROPHONE (DISPLAY 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: Identifying MICROPHONE & VOICE RECOGNITION CHECK Screen
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
NG: PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE (See PROBLEM SYMPTOMS TABLE )

OK: REPLACE MULTI-DISPLAY (See REMOVAL )