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Nissan Sentra B18 (2020-2025) Service Manual: Symptom Diagnosis

System Settings Cannot Be Turned On/off on the Integral Switch

Symptom Table

Symptom Table

CAUTION:

Perform the “Self Diagnostic Result” with CONSULT before the symptom diagnosis. Perform the trouble diagnosis if any DTC is detected.

Symptom

Inspection item/Reference page

AEB system does not turn ON/OFF

AEB warning lamp is not turned ON⇔OFF when operating integral switch

Diagnosis Procedure

AEB warning lamp is blinking

Diagnosis Procedure

Diagnosis Procedure

Diagnosis Procedure

AEB system does not turn ON/OFF.

  • AEB warning lamp does not illuminate even if the steering switch is operated when AEB warning lamp is not illuminated.

  • AEB warning lamp does not turn off even if the steering switch is operated when AEB warning lamp is illuminated.

Note:

The system ON/OFF condition will be memorized even if the ignition switch turns OFF.

  1. PERFORM THE SELF-DIAGNOSIS

    1. Perform “All DTC Reading” with CONSULT.

    2. Check if the DTC is detected in self-diagnosis results for “ICC/ADAS 2” with CONSULT. Refer to CONSULT Function (ICC/ADAS 2).

    Is any DTC detected?

    YES >>

    GO TO 4.

    NO >>

    GO TO 2.

  2. AEB WARNING LAMP

    1. Start the engine.

    2. Select the active test item “METER LAMP” for “ICC/ADAS 2” with CONSULT.

    3. Check if the AEB warning lamp illuminates when the test item is operated.

    Is the inspection result normal?

    YES >>

    Refer to Work Flow.

    NO >>

    GO TO 3.

  3. CHECK DATA MONITOR OF COMBINATION METER

    Check that “BA W/L” operates normally in “DATA MONITOR” for “METER/M&A” with CONSULT, when the AEB setting ON by steering switch.

    Is the inspection result normal?

    YES >>

    Replace the combination meter. Refer to Removal and Installation(4.2 inch Information Display) or Removal and Installation(7 inch Information Display).

    NO >>

    Replace the ADAS control unit 2. Refer to Removal and Installation.

  4. REPAIR OR REPLACE MALFUNCTIONING PARTS

    Repair or replace malfunctioning parts.

    >>

    GO TO 5.

  5. CHECK AEB SYSTEM

    Check that AEB warning lamp turned ON⇔OFF, when operating steering switch.

    >>

    INSPECTION END

AEB warning lamp is blinking

Aeb Warning Lamp Is Blinking

Symptom Description

Symptom Description

The AEB warning lamp is blinking. Refer to Diagnosis Procedure.

Note:

When any of the following conditions, the AEB warning lamp blinks:

  • The distance sensor area of the front of the Nissan Sentra vehicle is covered with dirt or is obstructed

  • The interior temperature of the vehicle is extremely high

  • The windshield is dirty, frosted, fogged up, or damaged in front of the front camera unit

  • The front camera unit or the front camera unit bracket is not mounted properly

Diagnosis Procedure

Diagnosis Procedure

  1. CHECK THE WINDSHIELD

    Check if the windshield is dirty, frosted, fogged up, or damaged in front of the front camera unit.

    Is the inspection result normal?

    YES >>

    GO TO 2.

    NO >>

    Clear, clean, or repair the windshield as needed. Refer to Removal and Installation .

  2. CHECK THE FRONT CAMERA UNIT OR FRONT CAMERA UNIT BRACKET INSTALL CONDITION

    Check if the front camera unit or the front camera unit bracket is mounted properly.

    Is the inspection result normal?

    YES >>

    INSPECTION END

    NO >>

    Correct improper mounting.

Normal Operating Condition

Description

Description

PRECAUTIONS FOR AUTOMATIC EMERGENCY BRAKING (AEB)

  • The automatic emergency braking (AEB) system is a supplemental aid to the driver. It is not a replacement for the driver′s attention to traffic conditions or responsibility to drive safely. It cannot prevent accidents due to carelessness or dangerous driving techniques.

  • The automatic emergency braking (AEB) system does not function in all driving, traffic, weather and road conditions.

  • The automatic braking will cease under the following conditions:

    • When the steering wheel is turned as far as necessary to avoid a collision.

    • When the accelerator pedal is depressed.

    • When there is no longer a Nissan Sentra vehicle detected ahead.

  • If the automatic emergency braking (AEB) system has stopped the Nissan Sentra vehicle, the vehicle will remain at a standstill for approximately 2 seconds before the brakes are released.

  • The system will not detect the following objects:

    • Pedestrians, animals, or obstacles in the roadway

    • Oncoming Nissan Sentra vehicles in the same lane

    • Crossing vehicles

  • The radar sensor has some performance limitations. For stationary Nissan Sentra vehicles, the automatic emergency braking (AEB) system can function at speeds of up to approximately 80 km/h (50 MPH).

  • The radar sensor may not detect a Nissan Sentra vehicle ahead in the following conditions:

    • Dirt, ice, snow or other material covering the radar sensor.

    • Interference by other radar sources.

    • Snow or road spray from traveling Nissan Sentra vehicles.

    • If the vehicle ahead is narrow (e.g.motorcycle)

    • When driving on a steep downhill slope or roads with sharp curves.

  • In some road or traffic conditions, the automatic emergency braking (AEB) system may unexpectedly apply partial braking. When acceleration is necessary, continue to depress the accelerator pedal to override the system.

  • Braking distances increase on slippery surfaces.

  • Excessive noise will interfere with the warning chime sound, and the chime may not be heard.

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