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



3.TWEETER SIGNAL CHECK


4.HARNESS CHECK



5.TWEETER SIGNAL CHECK

connector.

Front door speaker
Center speakerFront fog lamp circuit
Description
The IPDM E/R (intelligent power distribution module engine room) controls the
front fog lamp relay based on inputs from the BCM over the CAN communication
lines. When the front fog lamp relay is energized, power flows from the front
fog lamp relay in the IPDM E/R to the front fog ...
VDC off switch
Description
VDC OFF switch deactivates (turn OFF) the VDC/TCS function when the VDC OFF
switch is pressed.
Component Function Check
1.CHECK VDC OFF SWITCH OPERATION
Operate the VDC OFF switch and check that the VDC OFF indicator lamp in the
combination meter turns on/
off correctly.
D ...
B2618 BCM
Description
BCM controls the various electrical components and simultaneously supplies
power according to the power
supply position.
BCM checks the power supply position internally.
DTC Logic
DTC DETECTION LOGIC
NOTE:
If DTC B2618 is displayed with DTC U1000, first perform the
trou ...