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 CELLULAR PHONE
1. Check if the person on the other end of the phone 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 ON.
  OK:
  
  MUTE switch is not ON.
NG: TURN MUTE SWITCH OFF

OK: Go to next step
CHECK VEHICLE SENSORS (NAVIGATION CHECK MODE)
1. Enter the Navigation Check mode's Vehicle Sensors (see NAVIGATION CHECK MODE ).
  
  Fig 1: Display Navigation Check Mode Microphone Check Screen
  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002
2. While driving, compare the "SPD" indicator to the reading on the speedometer. Check if these readings are almost equal.
  OK:
  
  The readings are almost equal.
NG: GO TO " VOICE IS NOT RECOGNIZED "

OK: REPLACE MULTI-DISPLAY