Nissan Sentra B18 (2020-2025) Service Manual: System
System Description
System Description
SYSTEM DIAGRAM
AV Control Unit Input Signal (AV Communication)
|
Transmit unit |
Signal name |
|---|---|
|
Combination meter |
Steering switch signal |
AV Control Unit Input Signal (CAN Communication)
|
Transmit unit |
Signal name |
|---|---|
|
BCM |
|
|
IPDM E/R |
|
|
ABS actuator and electric unit (Control unit) |
Nissan Sentra Vehicle speed signal |
|
Combination meter |
Parking brake status signal |
AUDIO SYSTEM
The audio system consists of the following components:
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AV control unit
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Front tweeters
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Front door speakers
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Rear speakers
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Steering switches
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Microphone
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Front auxiliary input jacks
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Front auxiliary input jacks control unit
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Combination switch (spiral cable)
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Combination meter
-
Window antenna (AM/FM antenna)
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Antenna amp.
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Satellite antenna
When the audio system is on, AM/FM signals received by the window antenna are sent to the antenna amp., amplified and sent to the AV control unit. The AV control unit then sends audio signals to the front tweeters, front door speakers and rear speakers.
Refer to Owner's Manual for audio system operating instructions.
HANDS-FREE PHONE SYSTEM
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Bluetooth® control is built into AV control unit.
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The connection between cellular phone and AV control unit is performed with Bluetooth® communication.
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The voice guidance signal is input from the AV control unit and output to the front door speakers when operating the cellular phone.
When A Call Is Originated
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When AV control unit receives the microphone signal from microphone, it transmits the sound signal to a cell phone via Bluetooth® communication (without telematics system).
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When AV control unit receives the microphone signal from microphone via TCU, it transmits the sound signal to a cell phone via Bluetooth® communication (with telematics system).
-
Voice sound is then heard at the other party.
When Receiving A Call
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Voice sound is input to own cellular phone from the other party.
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TEL voice signal is input to AV control unit by establishing Bluetooth® communication from cellular phone, and the signal is output to front door speakers.
FRONT AUXILIARY INPUT JACKS
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Sound and data signals are transmitted from USB interfaces to the front auxiliary input jacks control unit.
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Front auxiliary input jacks control unit transmits sound and data signals to the AV control unit.
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Sound signals are transmitted from AUX jack to the AV control unit.
-
The AV control unit outputs the sound signals to each speaker.
SPEED SENSITIVE VOLUME SYSTEM
Volume level of this system goes up and down automatically in proportion to the Nissan Sentra vehicle speed. The control level can be selected by the customer. Refer to Owner's Manual for operating instructions.
Other materials:
Front Camera Unit
Values on the Diagnosis Tool
Values On The Diagnosis Tool
Note:
The following table includes information (items)
inapplicable to this Nissan Sentra vehicle. For information (items) applicable to this
vehicle, refer to CONSULT display items.
...
Fuel Level Sensor Signal Circuit
Component Function Check
Component Function
Check
COMBINATION METER INPUT SIGNAL
CONSULT
Select “FUEL METER” in “Data Monitor” mode of “METER/M&A”.
Compare the ...
Optical Sensor Circuit
Component Function Check
Component Function
Check
CHECK OPTICAL SENSOR SIGNAL
Ignition switch ON.
Turn lighting switch AUTO.
With the optical sen ...