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Nissan Sentra B18 (2020-2025) Service Manual: Component Parts

Meter System

Component Parts Location

Component Parts Location

MODELS WITH CVT

A.

View of engine assembly removed

No.

Component

Function

1.

Rear seat belt buckle switch RH & CTR

Transmits the rear seat belt buckle switch RH & CTR signal to the air bag diagnosis sensor unit.

2.

Front seat belt buckle switch RH

Transmits the front seat belt buckle switch RH signal to the air bag diagnosis sensor unit.

3.

CVT selector (drive sport mode switch) (if so equipped)

Transmits the drive sport mode switch signal to the BCM.

4.

ADAS (Advanced Driver Assistance System) control unit 2

Transmits each signal to the combination meter via CAN communication.

Refer to System Description.

Refer to Component Parts Location for detailed component location.

5.

ABS (Anti-lock Braking System) actuator and electric unit (control unit)

Transmits each signal to the combination meter via CAN communication.

Refer to System Description.

Refer to Component Parts Location for detailed component location.

6.

Washer fluid level switch (if so equipped)

Transmits the washer fluid level switch signal to the combination meter.

Refer to Component Parts Location for detailed component location.

7.

Ambient sensor

Transmits the ambient sensor signal to the combination meter.

8.

TCM (Transmission Control Module)

Transmits each signal to the combination meter via CAN communication.

Refer to System Description.

Refer to Component Parts Location for detailed component location.

9.

ECM (Engine Control Module)

Transmits each signal to the combination meter via CAN communication.

Refer to System Description.

Refer to Component Parts Location for detailed component location.

10.

Brake fluid level switch

Transmits the brake fluid level switch signal to the combination meter.

Refer to Component Parts Location for detailed component location.

11.

Parking brake switch

Transmits the parking brake switch signal to the combination meter.

12.

BCM (Body Control Module)

Transmits each signal to the combination meter via CAN communication.

Refer to System Description.

Refer to Component Parts Location for detailed component location.

13.

Air bag diagnosis sensor unit

Transmits each signal to the combination meter via CAN communication.

Refer to System Description.

Refer to Component Parts Location for detailed component location.

14.

Front seat belt buckle switch LH

Transmits the front seat belt buckle switch LH signal to the BCM.

15.

Front door switch LH

Transmits the front door switch LH signal to the BCM.

16.

Fuel level sensor unit and fuel pump (fuel level sensor)

Transmits the fuel level sensor signal to the combination meter.

17.

Rear seat belt buckle switch LH

Transmits the rear seat belt buckle switch LH signal to the air bag diagnosis sensor unit.

18.

Trunk lid opener assembly (ajar switch)

Transmits the trunk lid opener assembly (ajar switch) signal to the BCM.

19.

Combination meter

Refer to Combination Meter.

20.

ECO mode switch

Transmits the ECO mode switch signal to the BCM.

21.

Illumination control switch

Refer to Illumination Control Switch.

22.

Trip reset switch

Refer to Trip Reset Switch.

23.

Steering switches

Refer to Steering Switches.

24.

Combination switch (spiral cable)

Provides a pass-through for the steering switch signal from the steering switches to the combination meter.

25.

Start/stop OFF switch (if so equipped)

Transmits the start/stop OFF switch signal to the BCM.

26.

Engine oil pressure sensor

Transmits the engine oil pressure sensor signal to the ECM.
MODELS WITH M/T

A.

View of engine assembly removed

B.

Left side of instrument panel

No.

Component

Function

1.

Rear seat belt buckle switch RH & CTR

Transmits the rear seat belt buckle switch RH & CTR signal to the air bag diagnosis sensor unit.

2.

Front seat belt buckle switch RH

Transmits the front seat belt buckle switch RH signal to the air bag diagnosis sensor unit.

3.

ADAS (Advanced Driver Assistance System) control unit 2

Transmits each signal to the combination meter via CAN communication.

Refer to System Description.

Refer to Component Parts Location for detailed component location.

4.

ABS (Anti-lock Braking System) actuator and electric unit (control unit)

Transmits each signal to the combination meter via CAN communication.

Refer to System Description.

Refer to Component Parts Location for detailed component location.

5.

Washer fluid level switch (if so equipped)

Transmits the washer fluid level switch signal to the combination meter.

Refer to Component Parts Location for detailed component location.

6.

Ambient sensor

Transmits the ambient sensor signal to the combination meter.

7.

ECM (Engine Control Module)

Transmits each signal to the combination meter via CAN communication.

Refer to System Description.

Refer to Component Parts Location for detailed component location.

8.

Brake fluid level switch

Transmits the brake fluid level switch signal to the combination meter.

Refer to Component Parts Location for detailed component location.

9.

BCM (Body Control Module)

Transmits each signal to the combination meter via CAN communication.

Refer to System Description.

Refer to Component Parts Location for detailed component location.

10.

Air bag diagnosis sensor unit

Transmits each signal to the combination meter via CAN communication.

Refer to System Description.

Refer to Component Parts Location for detailed component location.

11.

Parking brake switch

Transmits the parking brake switch signal to the combination meter.

12.

Front seat belt buckle switch LH

Transmits the front seat belt buckle switch LH signal to the BCM.

13.

Front door switch LH

Transmits the front door switch LH signal to the BCM.

14.

Fuel level sensor unit and fuel pump (fuel level sensor)

Transmits the fuel level sensor signal to the combination meter.

15.

Rear seat belt buckle switch LH

Transmits the rear seat belt buckle switch LH signal to the air bag diagnosis sensor unit.

16.

Trunk lid opener assembly (ajar switch)

Transmits the trunk lid opener assembly (ajar switch) signal to the BCM.

17.

Combination meter

Refer to Combination Meter.

18.

ECO mode switch

Transmits the ECO mode switch signal to the BCM.

19.

Illumination control switch

Refer to Illumination Control Switch.

20.

Trip reset switch

Refer to Trip Reset Switch.

21.

Steering switches

Refer to Steering Switches.

23.

Engine oil pressure sensor

Transmits the engine oil pressure sensor signal to the ECM.

24.

Combination switch (spiral cable)

Provides a pass-through for the steering switch signal from the steering switches to the combination meter.

Design

Design

ARRANGEMENT OF COMBINATION METER

A.

USA

B.

Except USA

Combination Meter

Combination Meter

The combination meter controls the following items according to the signals received from each unit via CAN communication and the signals from switches and sensors:

  • Measuring instruments

  • Indicator lamps

  • Warning lamps

  • Meter illumination control

  • Information display

Trip Reset Switch

Trip Reset Switch

  • The trip reset switch is located on the instrument panel lower LH.

  • Transmits the trip reset signal to the combination meter.

No.

Switch name

Operation

Description

1.

Trip reset switch

Press

  • The trip meter can be switched between A and B.

  • Trip meter A/B can be reset by pressing and holding the trip reset switch.

  • A trip computer value displayed on the information display can be reset by pressing and holding the trip reset switch for 1 second or more.

  • All trip computer values can be reset by pressing and holding the trip reset switch for 3 seconds or more.

Illumination Control Switch

Illumination Control Switch

  • The illumination control switch is located on the instrument lower panel LH.

  • Transmits the following signals to the combination meter:

    • Illumination control switch signal (+)

    • Illumination control switch signal (−)

No.

Switch name

Operation

Description

1.

Illumination control switch (−)

Press

The brightness of combination meter and information display can be adjusted.

2.

Illumination control switch (+)

Steering Switches

Steering Switches

  • The steering switches are located on the steering wheel.

  • The steering switch transmits the steering switch signal to the combination meter.

No.

Switch name

Operation

Description

1.

OK/Up/Down/Left/Right switch

Press

The information display settings can be changed.

2.

Back switch
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