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 front door speakers using the audio signal circuits.
Diagnosis Procedure
1.CONNECTOR CHECK
Check the audio unit, BOSE speaker amp. and speaker connectors for the following:
2.HARNESS CHECK



3.FRONT DOOR SPEAKER SIGNAL CHECK


4.HARNESS CHECK

connector B109.


5.FRONT DOOR SPEAKER SIGNAL CHECK


Power supply and ground circuit
TweeterService data and specifications (SDS)
Steering Wheel
Steering Angle
Steering Column
STEERING COLUMN LENGTH
STEERING COLUMN ROTATING TORQUE
TILT MECHANISM OPERATING RANGE
Steering Gear
STEERING OUTER SOCKET AND INNER SOCKET
RACK STROKE
RACK SLIDING FORCE
Oil Pump
Steering Fluid
...
System description
FRONT WIPER AND WASHER SYSTEM
System Diagram
System Description
OUTLINE
The front wiper is controlled by each function of BCM and IPDM E/R.
Control by BCM
Combination switch reading function
Front wiper control function
Control by IPDM E/R
Front wiper control function
Relay con ...
Occupant classification system
System Diagram
Occupant Classification System (OCS)
The occupant classification system (OCS) identifies if a child or child
seat is present in the front passenger seat. The OCS receives inputsfrom the
occupant classification sensor mat (1) which is locatedinside the passenger
seat cushi ...