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 center speaker 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.CENTER SPEAKER SIGNAL CECK


4.HARNESS CHECK

connector B109.


5.CENTER SPEAKER SIGNAL CHECK


Tweeter
Rear door speakerVDC
System Diagram
Hydraulic Circuit Diagram
Primary side
VDC/TCS/ABS actuator
Primary side VDC switch-over valve
1 (USV1)
Primary side VDC switch-over valve
1 (HSV1)
Primary side pump
Rear right inlet solenoid valve
Primary side inlet valve
Primary side damper
Fr ...
B1017 - B1022 occupant classification system
Description
DTC B1017 - B1022 OCCUPANT CLASSIFICATION SYSTEM (OCS)
The occupant classification system control unit is wired to the air bag
diagnosis sensor unit. The air bag diagnosissensor unit will monitor the
occupant classification system for control unit and sensor mat failures and
inter ...
B2557 vehicle speed
Description
BCM receives the 2 vehicle speed signals via CAN
communication. One signal is transmitted by the "combination
meter". Another signal is transmitted by "ABS actuator and electric unit
(control unit)". BCM compares
both signals to detect the vehicle speed.
DTC Logic
DTC DETECTIO ...