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B18 Owner's 2020-2025 Sentra owner information B18 Service 2020-2025 Sentra Workshop manual B17 Owner's 2013-2019 Sentra owner documentation B17 Service 2013-2019 Sentra service information

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

  • Auto ACC signal

  • Illumination request signal

  • Door switch signal

IPDM E/R

  • Ignition supply signal

  • Transmission range signal

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:

  • AV control unit

  • Front door speakers

  • Rear speakers

  • Steering switches

  • Microphone

  • Front auxiliary input jacks

  • Combination switch (spiral cable)

  • Combination meter

  • Window antenna (AM/FM antenna)

  • Antenna amp.

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 door speakers and rear 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 door speakers when operating the cellular phone.

When A Call Is Originated

  • Spoken voice sound output from the microphone (microphone signal) is input to AV control unit.

  • AV control unit outputs to cellular phone with Bluetooth® communication as a TEL voice signal.

  • 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 door speakers.

FRONT AUXILIARY INPUT JACKS

  • Sound and data signals are transmitted from USB interface 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 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.

    Component Parts
    Display Audio with 7" Color Display Component Parts Location Component Parts Location No. Component Function 1. Rear speaker RH Refer to Speakers. 2. Microphone Refer to Microph...
    Diagnosis System (av Control Unit)
    Description Description The AV control unit on board diagnosis performs the functions listed in the table below: Mode Description Self Diagnosis Audio system diagnosis. Diagnose...

    Other materials:

    LATCH (Lower Anchors and Tethers for CHildren) system
    LATCH system lower anchor locations Your Nissan Sentra is equipped with dedicated anchor points designed for use with LATCH system–compatible child restraints. This system may also be referred to as ISOFIX or ISOFIX-compatible. When using the LATCH system, a vehicle seat belt is not req ...

    Brake Fluid Level and Leaks
    Inspection Inspection BRAKE FLUID LEVEL Make sure that the brake fluid level in the master cylinder reservoir tank is between the MAX and MIN lines. Visually check around the master cylinder reservoir tank for brake fluid leaks. ...

    Periodic Maintenance
    Idle Speed Idle Speed : Periodic Maintenance IDLE SPEED : Periodic Maintenance With CONSULT Check idle speed in “DATA MONITOR” mode of “ENGINE” using CONSULT. Without CONSULT Attach induction type (current detection type) rev counter (A) to loop wire as sho ...