Nissan Altima (L32) 2007-2012 Service Manual: Audio system (sedan)
System Diagram
System Description
AUDIO SYSTEM
The audio system consists of the following components
• AV control unit (audio unit)
• BOSE speaker amp.
• Window antenna
• Antenna amp.
• Steering wheel audio control switches
• Front door speakers
• Tweeters
• Center speaker
• Rear door speakers
• Subwoofers
• CD changer
When the audio system is on, radio signals are received by the window antenna. These signals are amplified by the antenna amp. before reaching the audio unit. The audio unit then sends audio signals to the BOSE speaker amp. The BOSE speaker amp. amplifies the audio signals before sending them to the front door speakers, tweeters, center speaker, rear door speakers and subwoofers.
Refer to Owner's Manual for audio system operating instructions.
SATELLITE RADIO SYSTEM
The satellite radio system consists of the following components
• Satellite antenna
• Satellite radio tuner
When the satellite radio system is on, radio signals are supplied to the satellite radio tuner from the satellite antenna. The satellite radio tuner then sends audio signals to the audio unit.
Refer to Owner's Manual for satellite radio system operating instructions.
SPEED SENSITIVE VOLUME SYSTEM
Volume level of this system goes up and down automatically in proportion to the vehicle speed. The control level can be selected by the customer. Refer to Owner's Manual for operating instructions.
Component Parts Location
1. Tweeter LH M51
2. Steering wheel audio control switches
3. CD changer M42
4. Tweeter RH M52
5. AV control unit M46, M47, M48, M81, M90, M91
6. Center speaker M151
7. Combination meter M24
8. Front door speaker
LH D3
RH D103
9. Rear subwoofer RH B124
10. Rear subwoofer LH B120
11. Rear door speaker
LH D202
RH D302
12. Antenna amp M502 (view with rear pillar finisher RH removed)
13. BOSE speaker amp. B121, B122
14. Microphone R7
15. Rear view camera control unit B31 (view with trunk side finisher LH removed)
16. Rear view camera B35
Component Description
Audio system (coupe)
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Floor mats
WARNING
To avoid potential pedal interference that
may result in a collision or injury:
● NEVER place a floor mat on top of another
floor mat in the driver front
position.
● Use only genuine NISSAN floor mats
specifically designed for use in your vehicle
model. See your NISSAN de ...
P0171 fuel injection system function
DTC Logic
DTC DETECTION LOGIC
With the Air/Fuel Mixture Ratio Self-Learning Control, the actual mixture
ratio can be brought closely to the
theoretical mixture ratio based on the mixture ratio feedback signal from the
A/F sensors 1. The ECM calculates
the necessary compensation to correct t ...
DLC branch line circuit
Diagnosis Procedure
INSPECTION PROCEDURE
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the data link connector for damage,
bend and loose connection
(connector side and harness side) ...