SYSTEM DESCRIPTION
AUDIO SYSTEM
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 front door speakers, tweeters, rear door speakers, subwoofer amp. and subwoofers.
Refer to Owner's Manual for audio system operating instructions.
Component Parts Location

Component Description
| Part name | Description |
| Audio unit | Controls audio and AUX IN system functions |
| Steering wheel audio control switches |
|
| Front door speakers |
|
| Tweeters |
|
| Rear door speakers |
|
| Bluetooth control unit |
|
| Display unit |
|
| Subwoofer amp |
|
| Subwoofers |
|
Diagnosis and repair workflow
Hands-free phone systemStep lamp circuit
Description
Controls the step lamp (ground side) to turn the step lamp ON and OFF.
Component Function Check
CAUTION: Before performing the diagnosis,
check that the following is normal.
Battery saver output/power supply
Step lamp bulbs
1.CHECK STEP LAMP OPERATION
CONSULT
Turn igni ...
DLC branch line circuit
Diagnosis Procedure
1.CHECK CONNECTOR
Turn the ignition switch OFF.
Disconnect the battery cable from the negative
terminal.
Check the terminals and connectors of the data
link connector for damage, bend and loose connection
(connector side and harn ...
Subwoofer
Description
The audio unit sends audio signals to the BOSE speaker amp. The BOSE speaker
amp. amplifies the audio signals before sending them to the subwoofers using
the audio signal circuits.
Diagnosis Procedure
1.CONNECTOR CHECK
Check the audio unit, BOSE speaker amp. and subwoofer connect ...