Related To Voice Control

Symptoms	Check items	Probable malfunction location
The voice cannot be controlled even if the voice control screen is displayed.	Voice sounds at "Voice Microphone Test" of Confirmation/Adjustment mode.	AV control unit malfunction. Replace AV control unit. Refer to REMOVAL AND INSTALLATION .
	Voice does not sound at "Voice Microphone Test" of Confirmation/Adjustment mode.	Microphone circuit malfunction. Refer to DIAGNOSIS PROCEDURE .
The voice cannot be controlled (Voice control screen is not displayed).	Hands - free phone system can be operated. Steering switch's "SOURCE", "MENU UP", "MENU DOWN" and "ENTER" switch works, but " " it does not work.	Steering switch malfunction. Replace steering wheel. Refer to EXPLODED VIEW .
	Steering switch's "SOURCE", "MENU UP", "MENU DOWN", " " and "ENTER" switches do not work.	Steering switch signal A circuit malfunction. Refer to DIAGNOSIS PROCEDURE .
	None of the steering switch operations work.	Steering switch ground circuit malfunction. Refer to DIAGNOSIS PROCEDURE .