Operation CHARM: Car repair manuals for everyone.

Without Display Audio




SYSTEM

System Description


AUDIO SYSTEM

The audio system consists of the following components
- Audio unit
- Front door speakers
- Front speakers
- Rear speakers
- Steering switches
- Microphone
- USB interface
- Rear view camera
- satellite antenna
- Antenna amp.
- Window antenna
When the audio system is on, AM/FM signals received by the window antenna are amplified by the antenna amp. and sent to the audio unit. The audio unit then sends audio signals to the front door speakers, front speakers and rear speakers.

HANDS-FREE PHONE SYSTEM

System Operation
NOTE:
Cellular telephones must have their wireless connection set up (paired) before using the Bluetooth(R) telephone system.
The Bluetooth(R) telephone system allows users who have a Bluetooth(R) cellular telephone to make a wireless connection between their cellular telephone and the audio unit. Hands-free cellular telephone calls can be sent and received. Some Bluetooth(R) cellular telephones may not be recognized by the audio unit. When a cellular telephone or the audio unit is replaced, the telephone must be paired with the audio unit. Different cellular telephones may have different pairing procedures, refer to the cellular telephone operating manual.

AV Control Unit
When the ignition switch is turned to ACC or ON, the audio unit will power up. During power up, the audio unit is initialized and performs various self-checks. Initialization may take up to 20 seconds.
Steering Switches
When buttons on the steering switches are pushed, the resistance in steering switches circuits change, depending on which button is pushed.
The following functions can be performed using the steering switches:
- Initiate self-diagnosis of the Bluetooth(R) telephone system
- Start a voice recognition session
- Answer and end telephone calls
- Adjust the volume of calls
- Record memos
Microphone
The microphone is located in the roof console assembly. The microphone sends a signal to the audio unit.

REAR VIEW CAMERA SYSTEM

- The audio unit supplies power to the rear view camera when the reverse signal is received from the BCM.
- The rear view camera transmits rear view camera images to the audio unit when power is supplied from the audio unit.
- The audio unit combines a warning message and fixed guide lines with an image received from the rear view camera to display a rear view camera image on the screen.