Related To Hands-Free Phone

Symptoms	Check items	Probable malfunction location
Does not recognize cellular phone connection (no connection is displayed on the display at the guide).	Repeat the registration of cellular phone.	Malfunction in AV control unit. Replace AV control unit. Refer to REMOVAL AND INSTALLATION .
Hands-free phone cannot be established.	Hands-free phone operation can be made, but the communication cannot be established. Hands-free phone operation can be performed, however, voice between each other cannot be heard during the conversation.
The other party's voice cannot be heard by hands-free phone.	Check the "microphone speaker" in Inspection & Adjustment Mode if sound is heard.
Originating sound is not heard by the other party with hands-free phone communication.	Sound operation function is normal.
	Sound operation function does not work.	Microphone signal circuit malfunction. Refer to DIAGNOSIS PROCEDURE .
The system cannot be operated.	The voice recognition can be controlled. Steering switch's , , and switch works, but does not work.	Steering switch malfunction. Replace steering switch. Refer to REMOVAL AND INSTALLATION .
	Steering switch's , , , and switches do not work.	Steering switch signal circuit malfunction. Refer to DIAGNOSIS PROCEDURE .
	All steering switches do not work.	Steering switch ground circuit malfunction. Refer to DIAGNOSIS PROCEDURE .