System Diagram

System Description
AUDIO SYSTEM
The audio system consists of the following components
When the audio system is on, radio signals are received by the window antenna. The AV control unit then sends audio signals to the BOSE speaker amp. The BOSE speaker amp. amplifies the audio signals before sending them to the front door speakers, tweeters, center speaker, rear door speakers and the rear subwoofers.
Refer to Owner's Manual for audio system operating instructions.
SATELLITE RADIO SYSTEM (IF EQUIPPED)
The satellite radio system consists of the following components
When the satellite radio system is on, radio signals are supplied to the AV control unit from the satellite antenna. The AV control unit then sends audio signals to the BOSE speaker amp.
Refer to Owner's Manual for satellite radio system operating instructions.
SPEED SENSITIVE VOLUME SYSTEM
Volume level of this system goes up and down automatically in proportion to the vehicle speed. The control level can be selected by the customer. Refer to Owner's Manual for operating instructions.
Component Parts Location

Component Description
|
Part name |
Description |
| AV control unit | Controls audio system, USB connection, AUX IN connection, NAVI functions and satellite radio system functions |
| Display unit | Displays all audio and climate control related information |
| BOSE speaker amp | Receives power (amp ON) and audio signals from AV control unit and outputs audio signals to each speaker |
| Steering wheel audio control switches |
|
| Front door speakers |
|
| Tweeters |
|
| Center speaker |
|
| Rear door speakers |
|
| Rear subwoofers |
|
| Satellite antenna (if so equipped) | Audio signal (satellite radio) is received and output to AV control unit. |
Navigation systemRear window defogger system
System Diagram
System Description
Operation Description
When rear window defogger switch is turned ON while ignition
switch is ON, the A/C auto amp. (rear window
defogger switch) transmits rear window defogger switch signal to BCM.
BCM turns rear window defogger relay ON when rear ...
Front door speaker
Description
The AV control unit sends audio signals to the BOSE speaker amp. The BOSE
speaker amp. amplifies the
audio signals before sending them to the front door speakers using the audio
signal circuits.
Diagnosis Procedure
1.CONNECTOR CHECK
Check the AV control unit, BOSE speaker amp. ...
Tilt &telescopic switch ground circuit
Diagnosis Procedure
1. CHECK ADP STEERING SWITCH (TILT & TELESCOPIC SWITCH) GROUND CIRCUIT
Turn ignition switch OFF.
Disconnect ADP steering switch (tilt & telescopic switch).
Check continuity between ADP steering switch (tilt & telescopic
switch) and ground.
...