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 audio unit then sends audio signals to the BOSE speaker amp. The Bose speaker amp. sends the audio signals to the front door speakers, tweeters, center speaker, rear door speakers and rear subwoofers.
Refer to Owner's Manual for audio 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 |
Audio unit | Controls audio system and AUX IN system functions |
Bluetooth control unit |
|
Display unit |
|
BOSE speaker amp. | Receives power (amp ON) and audio signals from audio unit, and outputs audio signals to each speaker |
Steering wheel audio control switches |
|
Front door speakers |
|
Center speaker |
|
Tweeters |
|
Rear door speakers |
|
Rear subwoofers |
|
B263D, B263E, B263F intake door motor
Description
COMPONENT DESCRIPTION
Intake Door Motor
The intake door motor (1) is attached to the blower unit.
It rotates so that air is drawn from inlets set by the A/C auto
amp.
Motor rotation is conveyed to a lever which activates the intake
door.
DTC Logic
DTC DETECTION L ...
U1218 AV control unit
DTC Logic
U1219 AV CONTROL UNIT
DTC Logic
U121A AV CONTROL UNIT
DTC Logic
U121B AV CONTROL UNIT
DTC Logic
U121C AV CONTROL UNIT
DTC Logic
...
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. ...