Nissan Sentra B18 (2020-2025) Service Manual: System

System Description

SYSTEM DIAGRAM

AV Control Unit Input Signal (AV Communication)

AV Control Unit Input Signal (CAN Communication)

Bose Speaker Amp. Input Signal (CAN Communication)

AUDIO SYSTEM

The audio system consists of the following component:

• AV control unit

• Bose speaker amp.

• Front tweeters

• Front door speakers

• Rear door speakers

• Rear speakers

• Steering switches

• Microphone

• Front auxiliary input jacks

• Front auxiliary input jacks control unit

• Combination switch (spiral cable)

• Combination meter

• Window antenna (AM/FM antenna)

• Antenna amp.

• Satellite antenna

When the audio system is on, AM/FM signals received by the window antenna are amplified by the antenna amp. and sent to the AV control unit. The AV control unit sends the audio signals to the Bose speaker amp. The Bose speaker amp. then sends the audio signals to the tweeters and speakers.

Refer to Owner's Manual for audio system operating instructions.

HANDS-FREE PHONE SYSTEM

• Bluetooth^® control is built into AV control unit.

• The connection between cellular phone and AV control unit is performed with Bluetooth^® communication.

• The voice guidance signal is input from the AV control unit and output to the front speakers when operating the cellular phone.

When A Call Is Originated

• When AV control unit receives the microphone signal from microphone via TCU, it transmits the sound signal to a cell phone via Bluetooth^® communication.

• Voice sound is then heard at the other party.

When Receiving A Call

• Voice sound is input to own cellular phone from the other party.

• TEL voice signal is input to AV control unit by establishing Bluetooth^® communication from cellular phone, and the signal is output to front speakers.

FRONT AUXILIARY INPUT JACKS

• Sound and data signals are transmitted from USB interfaces to the front auxiliary input jacks control unit.

• Front auxiliary input jacks control unit transmits sound and data signals to the AV control unit.

• Sound signals are transmitted from AUX jack to the AV control unit.

• The AV control unit outputs the sound signals to Bose speaker amp.

• The Bose speaker amp. 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.

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