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
TweeterBCM (body control module)
Reference Value
NOTE: The Signal Tech II Tool (J-50190) can
be used to perform the following functions. Refer to the Signal Tech II User
Guide for additional information.
Activate and display TPMS transmitter IDs
Display tire pressure reported by the TPMS transmitter
Read TPMS DTCs
Re ...
Operating range
The Intelligent Key functions can only be used
when the Intelligent Key is within the specified
operating range.
When the Intelligent Key battery is almost discharged
or strong radio waves are present near
the operating location, the Intelligent Key system's
operating range becomes narro ...
Vehicle jerks during VDC/TCS/ABS control
Diagnosis Procedure
1.SYMPTOM CHECK
Check if the vehicle jerks during VDC/TCS/ABS control.
2.CHECK SELF-DIAGNOSIS RESULTS
Perform self-diagnostic of ABS actuator and electric unit (control unit).
3.CHECK CONNECTOR
Turn ignition switch OFF and disconnect ABS actuator and electric
unit (co ...