Nissan Maxima Service and Repair Manual: Subwoofer
Description
The audio 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 audio 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 audio unit connector M132 and BOSE speaker amp.
connector
B109.
- Check continuity between audio unit harness connector M132 (A)
and BOSE speaker amp. harness connector B109 (B).
- Check continuity between audio unit harness connector M132 (A)
terminal and ground.


5.REAR SUBWOOFER SIGNAL CHECK

- Connect audio unit connector M132 and BOSE speaker amp.
connector
B109.
- Turn ignition switch to ACC.
- Push POWER switch.
- Check the signal between audio unit harness connector terminals
with CONSULT or oscilloscope.

Description
The audio 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 signal circ ...
Description
When the audio system is turned on, a voltage signal is supplied from the
audio unit to the BOSE speaker amp. When this signal is received, the BOSE
speaker amp. will turn on.
Diagno ...
Other materials:
Refrigeration system
Inspection
1.CHECK BLOWER MOTOR OPERATION
Check blower motor operation
2.CHECK COMPRESSOR OPERATION
Check compressor operatio
3.CHECK REFRIGERANT CYCLE PRESSURE
Connect recovery/recycling recharging equipment to the vehicle and perform
the diagnosis with the gauge pressure. Refer to HA ...
Preparation
Special Service Tool
The actual shapes of the tools may differ from those illustrated here.
Commercial Service Tool
...
Power supply and ground circuit
BCM
BCM : Diagnosis Procedure
Regarding Wiring Diagram information, refer to BCS-67,
"Wiring Diagram".
1. CHECK FUSE AND FUSIBLE LINK
Check if the following BCM fuses or fusible link are
blown.
2. CHECK POWER SUPPLY CIRCUIT
Turn ignition switch OFF.
Disconnect B ...