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.
Rear door speaker
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 ...
Steering switch
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:
Low tire pressure warning lamp does not turn on
Low Tire Pressure Warning Lamp Does Not Come On When Ignition Switch
Is Turned On
NOTE: The Signal Tech II Tool (J-50190) can be used
to perform the following functions. Refer to the Signal Tech II User Guide
for additional information.
Activate and display TPMS transmitter IDs
&n ...
P0117, P0118 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 ...
Checking engine coolant level
Check the coolant level in the reservoir when
the engine is cold. If the coolant level is below
the MIN level B , add coolant to the MAX level
A . If the reservoir is empty, check the coolant
level in the radiator when the engine is cold. If
there is insufficient coolant in the radiator, fi ...
Nissan Maxima Owners Manual
- Illustrated table of contents
- Safety-Seats, seat belts and supplemental restraint system
- Instruments and controls
- Pre-driving checks and adjustments
- Monitor, climate, audio, phone and voice recognition systems
- Starting and driving
- In case of emergency
- Appearance and care
- Do-it-yourself
- Maintenance and schedules
- Technical and consumer information
Nissan Maxima Service and Repair Manual
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