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 subwoofer connectors for the following:
2.HARNESS CHECK



3.REAR SUBWOOFER SIGNAL CHECK


4.HARNESS CHECK



5.REAR SUBWOOFER SIGNAL CHECK


Rear door speaker
Steering switchStall test
Inspection and Judgment
INSPECTION
Inspect the amount of engine oil. Replenish the
engine oil if necessary.
Drive for about 10 minutes to warm up the
vehicle so that the
CVT fluid temperature is 50 to 80C (122 to 176F). Inspect the
amount of CVT fluid. Repleni ...
A-bag branch line circuit
Diagnosis Procedure
WARNING:
Always observe the following items for preventing accidental
activation.
- Before servicing, turn ignition switch OFF, disconnect battery negative
terminal, and wait 3 minutes
or more. (To discharge backup capacitor.)
- Never use unspecified tester or other ...
Normal operating condition
Description
The majority of the audio concerns are the result of outside causes (bad CD,
electromagnetic interference,
etc.).
NOISE
The following noise results from variations in field strength, such as fading
noise and multi-path noise, or
external noise from trains and other sources. I ...