Nissan Maxima Service and Repair Manual: Subwoofer
Description
The AV control unit sends audio signals to the subwoofer amp. The subwoofer
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, subwoofer amp. and subwoofer connectors for the
following:
- Proper connection
- Damage
- Disconnected or loose terminals
2.HARNESS CHECK

- Disconnect subwoofer amp. connector B21 and suspect subwoofer
connector.
- Check continuity between subwoofer amp. harness connector B21
(A) and suspect subwoofer harness connector (B).
- Check continuity between subwoofer harness connector B21 (A) and
ground.


3.REAR SUBWOOFER SIGNAL CHECK

- Connect subwoofer amp. connector B21 and suspect subwoofer connector.
- Turn ignition switch to ACC.
- Push POWER switch.
- Check the signal between subwoofer amp. harness connector B21
terminals with CONSULT or oscilloscope.

4.HARNESS CHECK

- Disconnect AV control unit connector M115 and subwoofer speaker
amp. connector B21.
- Check continuity between AV control unit harness connector M115
(A) and subwoofer amp. harness connector B21 (B).
- Check continuity between AV control unit harness connector M115 (A)
terminal and ground


5.SUBWOOFER SIGNAL CHECK

- Connect AV control unit connector M115 and subwoofer amp.
connector
B21.
- Turn ignition switch to ACC.
- Push "POWER" switch.
- Check the signal between AV control unit harness connector M115
terminals with CONSULT or oscilloscope.

Description
The AV control unit sends audio signals to the rear door speakers using the
rear door speaker circuits.
Diagnosis Procedure
1.CONNECTOR CHECK
Check the AV control unit and speaker co ...
Description
When one of the steering wheel audio control switches is pushed, the
resistance in the steering wheel audio control switch circuit changes,
depending on which button is pushed.
Diagn ...
Other materials:
Power door lock system
Wiring Diagram
...
B1113 - B1115 satellite sensor RH
Description
DTC B1113 - B1115 SATELLITE SENSOR RH
The satellite sensor RH is wired to the air bag diagnosis sensor unit. The
air bag diagnosis sensor unit willmonitor the satellite sensor RH for
internal failures and its circuits for communication errors.
PART LOCATION
DTC Logic
DTC DETECTI ...
Precaution
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT
PRE-TENSIONER"
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT
PRE-TENSIONER", used along
with a front seat belt, helps to reduce the risk or severity of injury to ...