Nissan Maxima Service and Repair Manual: Subwoofer
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:
- Proper connection
- Damage
- Disconnected or loose terminals
2.HARNESS CHECK

- Disconnect BOSE speaker amp. connector B110 and suspect
rear subwoofer connector.
- Check continuity between BOSE speaker amp. harness connector
B110 (A) and suspect rear subwoofer harness connector (B).
- Check continuity between BOSE speaker amp. harness connector
B110 (A) and ground


3.REAR SUBWOOFER SIGNAL CHECK

- Connect BOSE speaker amp. connector B110 and suspect rear
subwoofer connector.
- Turn ignition switch to ACC.
- Push POWER switch.
- Check the signal between BOSE speaker amp. harness connector
B110 terminals with CONSULT or oscilloscope.

4.HARNESS CHECK

- Disconnect AV control unit connector M157 and BOSE speaker
amp. connector B109.
- Check continuity between AV control unit harness connector
M157 (A) and BOSE speaker amp. harness connector B109 (B).
- Check continuity between AV control unit harness connector
M157 (A) terminal and ground


5.REAR SUBWOOFER SIGNAL CHECK

- Connect AV control unit connector M157 and BOSE speaker
amp. connector B109.
- Turn ignition switch to ACC.
- Push POWER switch.
- Check the signal between AV control unit harness connector
terminals
with CONSULT or oscilloscope.

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 rear door speakers using the audio
sign ...
Description
When the audio system is turned on, a voltage signal is supplied from the AV
control unit to the BOSE speaker
amp. When this signal is received, the BOSE speaker amp. will turn on.
D ...
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up to 120,000 miles
(192,000 km)/144 months. For most people, the
...
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DTC CONFIRMATION PROCEDURE
1.PREPARATION BEFORE WORK
If another "DTC CONFIRMATION PROCEDURE" occurs just before, turn ignition
switch OFF and wait for at
least 10 seconds, then perform the next test.
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