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 M160 and BOSE speaker
amp. connector B109.
- Check continuity between AV control unit harness connector
M160 (A) and BOSE speaker amp. harness connector B109 (B).
- Check continuity between AV control unit harness connector
M160 (A) and ground.


5.FRONT DOOR SPEAKER SIGNAL CHECK

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

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 ...
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 ...
Other materials:
Parking, license plate and tail lamps system
Wiring Diagram
...
Periodic maintenance
IN-CABIN MICROFILTER
Removal and Installation
REMOVAL
Disengage the filter cover tab (1) by pushing up and pull out to
remove the filter cover.
Remove the in-cabin microfilter from the blower unit.
INSTALLATION
Installation is in the reverse order of removal. ...
P0116 ECT sensor
Description
The engine coolant temperature sensor is used to detect the engine
coolant temperature. The sensor modifies a voltage signal from the
ECM. The modified signal returns to the ECM as the engine coolant
temperature input. The sensor uses a thermistor which is sensitive to
the c ...