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 |
|
Hands-free phone systemNormal operating condition
Description
The majority of the audio concerns are the result of outside causes (bad CD,
electromagnetic interference, etc.).
NOISE
The following noise results from variations in field strength, such as fading
noise and multi-path noise, or external noise from trains and other sources.
It i ...
Center 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 center speaker using the audio signal
circuits.
Diagnosis Procedure
1.CONNECTOR CHECK
Check the AV control unit, BOSE speaker amp. and s ...
ECU diagnosis information
POWER STEERING CONTROL UNIT
Reference Value
TERMINA LAYOUT
PHYSICAL VALUES
CAUTION: When using circuit tester or oscilloscope to
measure voltage for inspection, be sure not to extend forcibly any connector
terminals.
Fail Saf
EPS system
EPS system enters the fail-safe mode (that al ...