Nissan Maxima Service and Repair Manual: Subwoofer
Description
The audio 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 audio 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 audio unit connector M133 and subwoofer speaker amp.
connector B21.
- Check continuity between audio unit harness connector M133 (A)
and subwoofer amp. harness connector B21 (B).
- Check continuity between audio unit harness connector M133 (A)
terminal and ground.


5.SUBWOOFER SIGNAL CHECK

- Connect audio unit connector M133 and subwoofer amp. connector B21.
- Turn ignition switch to ACC.
- Push "POWER" switch.
- Check the signal between audio unit harness connector M133
terminals with CONSULT or oscilloscope.

Description
The audio unit sends audio signals to the rear door speakers using the rear
door speaker circuits.
Diagnosis Procedure
1.CONNECTOR CHECK
Check the audio unit and speaker connectors f ...
Description
When one of the steering wheel audio control switches is pushed, the
resistance in steering switch circuit changes depending on which button is
pushed.
Diagnosis Procedure
1.CHECK S ...
Other materials:
Rear view camera
Removal and Installation
REMOVAL
Remove the license plate finisher. Refer to EXL-166, "Removal and
Installation".
Remove trunk lid finisher. Refer to INT-36, "Exploded View".
Disconnect the rear view camera connector (B), press the rear
view camera tab (A) and remove the rear view c ...
Wiring diagram
WARNING CHIME SYSTEM
Wiring Diagram
...
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.
Is the fuse or fusible link blown?
2. CHECK POWER SUPPLY CIRCUIT
Turn ignition switch OFF.
...