Nissan Sentra B18 (2020-2025) Service Manual: The System Does Not Detect the Vehicle Ahead at All

Nissan Sentra B18 (2020-2025) Service Manual / Cruise Control & Driver Assistance / Driver Assistance System :: Driver Assistance System / Symptom Diagnosis / The System Does Not Detect the Vehicle Ahead at All

Diagnosis Procedure

Diagnosis Procedure

When AEB system is active, the AEB system does not perform any control even though there is a vehicle ahead.

CHECK INFORMATION DISPLAY
1. Start the “Self Diagnosis” of combination meter. Refer to Description.
2. Check that the segment of information display is displayed normally.
Is the inspection result normal?
YES >>
GO TO 2.
NO >>
Replace the combination meter. Refer to Removal and Installation.
VISUAL CHECK (1)

Check distance sensor for contamination and foreign materials.

Does contamination or foreign materials exist?
YES >>
GO TO 3.
NO >>
GO TO 4.
WIPE OUT DIRT AND FOREIGN MATERIAL

Clean the contamination and foreign material from the distance sensor.

>>
Inspection End.
VISUAL CHECK (2)

Check distance sensor and distance sensor bracket for damage or looseness.

Does damage or looseness exist?
YES >>
Repair or replace affected components. Refer to Removal and Installation.
NO >>
GO TO 5.
PERFORM RADAR ALIGNMENT
1. Perform radar alignment. Refer to Work Procedure.
2. Perform action test. Refer to Work Procedure.
3. Check that the Nissan Sentra vehicle ahead detection performance improves.
Does it improve?
YES >>
Inspection End.
NO >>
GO TO 6.
REPLACE DISTANCE SENSOR
1. Replace the distance sensor. Refer to Removal and Installation.
2. Perform radar alignment. Refer to Work Procedure.
3. Perform action test. Refer to Work Procedure.
4. Check that the Nissan Sentra vehicle ahead detection performance improves.
Does it improve?
YES >>
Inspection End.
NO >>
GO TO 7.
REPLACE ADAS CONTROL UNIT 2

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

>>
Inspection End.

Frequently Cannot Detect the Vehicle Ahead / Detection Zone Is Short

Diagnosis Procedure Diagnosis Procedure Symptom check: Detection function may become unstable under the following conditions: When the Nissan Sentra vehicle is driving on a curv ...

Normal Operating Condition

Description Description PRECAUTIONS FOR BLIND SPOT WARNING The Blind Spot Warning system is not a replacement for proper driving procedure and is not designed to prevent con ...

Other materials:

Cleaning interior
This vehicle has new and unique surfaces on the center console and door pull finishers. If cleaning is required use mild soap and water. However if mild soap and water won’t clean the center console and door pull finishers, use NISSAN Vinyl and Leather Cleaner (or equivalent). Occasionally ...

iPod* player operation
Type-A. Connecting iPod WARNING Do not connect, disconnect, or operate the USB device while driving. Doing so may distract the driver. If distracted, you could lose control of your Nissan Sentra, which could result in an accident causing serious injury. CAUTION Do not force the ...

Handling Precaution
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 ...