Diagnosis Procedure
1.CHECK CONNECTOR
Turn the ignition switch OFF.
Disconnect the battery cable from the negative terminal.
Check the following terminals and connectors for damage, bend and loose connection (connector side and harness side).
Harness connector B1
Harness connector M6
2.CHECK HARNESS CONTINUITY (OPEN CIRCUIT)
. Disconnect the following harness connectors.
Harness connectors B208 and B32
Harness connectors B1 and M6
Check the continuity between the harness connectors.

3.CHECK HARNESS CONTINUITY (OPEN CIRCUIT)

Malfunction area chart
Main line between dlc and hvac circuitSubwoofer
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 subwoofers using the audio signal
circuits.
Diagnosis Procedure
1.CONNECTOR CHECK
Check the AV control unit, BOSE speaker amp. and subwo ...
Diagnosis system (BCM)
CONSULT Function (BCM - COMMON ITEM)
APPLICATION ITEM
CONSULT performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions.
CONSULT Function (BCM - AIR PRESSURE MONITOR)
NOTE: The Signal Tech II Tool (J-50190) can be used
to ...
U122A AV control unit
DTC Logic
Diagnosis Procedure
1.PERFORM THE SELF-DIAGNOSIS
When U122A is detected, write configuration data with "MULTI AV" of CONSULT.
U122E AV CONTROL UNIT
DTC Logic
DTC DETECTION LOGIC
...