Nissan Maxima Service and Repair Manual: Front door speaker
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 front door speakers using the audio
signal circuits.
Diagnosis Procedure
1.CONNECTOR CHECK
Check the AV control unit, BOSE speaker amp. and speaker connectors for the
following:
- Proper connection
- Damage
- Disconnected or loose terminals
2.HARNESS CHECK

- Disconnect BOSE speaker amp. connector B109 and suspect
speaker connector.
- Check continuity between BOSE speaker amp. harness connector
B109 (A) and suspect speaker harness connector (B).
- Check continuity between BOSE speaker amp. harness connector
B109 (A) and ground.


3.FRONT DOOR SPEAKER SIGNAL CHECK

- Connect BOSE speaker amp. connector B109 and suspect
speaker connector.
- Turn ignition switch to ACC.
- Push POWER switch.
- Check the signal between BOSE speaker amp. harness connector
B109 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) and ground.


5.FRONT DOOR SPEAKER SIGNAL CHECK

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

Description
In composite image (AUX image, camera image), transmit the vertical
synchronizing (VP) signal and horizontal
synchronizing (HP) signal from display unit to AV control unit so as to
...
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
circuit ...
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DRIVER SIDE
DRIVER SIDE : Description
Door glass moves UP/DOWN by receiving the signal from main power window and
door lock/unlock switch.
DRIVER SIDE : Component Function Check
1. CHECK FRONT POWER WINDOW MOTOR LH
Check that front power window motor LH operates with main power window and
d ...