AUDIO AND VISUAL SYSTEM

FUNCTION OF MAIN COMPONENTS

Models with Touch System
Component	Function
Radio and Display Receiver Assembly	Plays back audio from each audio source, such as radio, CD and Bluetooth audio. Sends audio signals from each audio source to the speakers.1 Sends audio signals from each audio source to the stereo component amplifier assembly.2 Sends status information of each audio source to the combination meter assembly.*3 Is equipped with an application player to run applications.
Window Glass Antenna Wire AM FM-sub	Receives radio broadcasting signals (AM/FM-sub).
Window Glass Antenna Wire FM	Receives radio broadcasting signals (FM).
No. 1 Amplifier Antenna Assembly	Amplifies radio broadcasting signals from the radio antenna and sends them to the radio and display receiver assembly.
Steering Pad Switch Assembly	Sends operation signals from switches such as the volume switch, mode switch and seek switch, to the spiral cable with sensor subassembly.
Spiral Cable with Sensor Sub-assembly	Sends operation signals from the steering pad switch assembly to the radio and display receiver assembly.
Map Light Assembly	Houses the telephone microphone assembly.
Telephone Microphone Assembly	Recognizes speech during a hands-free call or voice recognition system operation and sends the audio signal to the radio and display receiver assembly.
No. 1 Stereo Jack Adapter Assembly	Sends audio and/or video signals to the radio and display receiver assembly when an auxiliary device is connected. Communicates with the radio and display receiver assembly4 or navigation ECU3 via a USB communication line when a USB memory stick, portable audio player (USB type) or Apple product is connected.
Combination Meter Assembly	Sends vehicle speed signals to the radio and display receiver assembly or stereo component amplifier2. Displays information such as audio status information received from the radio and display receiver assembly on the multi-information display. Sends operation signals to the radio and display receiver assembly when the audio system is operated via the multi-information display.3
Stereo Component Amplifier Assembly*2	Amplifies audio signals sent from the navigation receiver assembly and sends them to the speakers.
Navigation ECU*3	Sends signals sent from a USB memory stick, portable audio player (USB type) or Apple product to the radio and display receiver assembly. Houses the Bluetooth antenna.

*1: Models with 6-speaker system

*2: Models with 12-speaker system

*3: Models with navigation ECU

*4: Models without navigation ECU

Models with Display Audio System or Navigation System
Component	Function
Radio and Display Receiver Assembly*1	Plays back audio from each audio source, such as radio, CD and Bluetooth audio. Sends audio signals from each audio source to the speakers. Is equipped with an application player to run applications.
Navigation Receiver Assembly*2	Plays back audio from each audio source, such as radio, CD and Bluetooth audio. Sends audio signals from each audio source to the speakers. Sends status information of each audio source to the combination meter assembly. Is equipped with an application player to run applications. Sends operation signals to the television display assembly when the rear seat entertainment system is operated using the multi-display.3 Sends audio signals from the rear seat entertainment system to the speakers.3
Window Glass Antenna Wire AM FM-sub	Receives radio broadcasting signals (AM/FM-sub).
Window Glass Antenna Wire FM	Receives radio broadcasting signals (FM).
Window Glass Antenna Wire*2 DAB	Receives radio broadcasting signals (DAB).
No. 1 Amplifier Antenna Assembly	Amplifies radio broadcasting signals from the radio antenna and sends them to the radio and display receiver assembly1 or navigation receiver assembly2.
Digital Audio Broadcasting Antenna Assembly*2	Amplifies radio broadcasting signals from the radio antenna and sends them to the navigation receiver assembly.
Steering Pad Switch Assembly	Sends operation signals from switches such as the volume switch, mode switch and seek switch, to the spiral cable with sensor subassembly.
Spiral Cable with Sensor Sub-assembly	Sends operation signals from the steering pad switch assembly to the radio and display receiver assembly1 or navigation receiver assembly2.
Map Light Assembly	Houses the telephone microphone assembly.
Telephone Microphone Assembly	Recognizes speech during a hands-free call or voice recognition system operation and sends the audio signal to the radio and display receiver assembly1 or navigation receiver assembly2.
No. 1 Stereo Jack Adapter Assembly	Sends audio and/or video signals to the radio and display receiver assembly1 or navigation receiver assembly2 when an auxiliary device is connected. Communicates with the radio and display receiver assembly1 or navigation receiver assembly2 via a USB communication line when a USB memory stick, portable audio player (USB type) or Apple product is connected.
Combination Meter Assembly	Sends vehicle speed signals to the radio and display receiver assembly1, navigation receiver assembly2. Displays information such as audio status information received from the radio and display receiver assembly1 or navigation receiver assembly2 on the multi-information display. Sends operation signals to the navigation receiver assembly when the audio system is operated via the multi-information display.*2
Television Display Assembly*3	Displays videos or images from the built-in BD player or an SD card. Sends audio signals to the navigation receiver assembly or wireless headphones.
Rear Switch and Volume Assembly*3	Outputs various control signals for the rear seat entertainment system to the television display assembly in the form of infrared signals.

*1: Models with display audio system

*2: Models with navigation system

*3: Models with rear seat entertainment system

DIAGNOSIS
1. For details on the procedure required to enter the Service Menu screen, refer to the Repair Manual.