Nissan X-Trail 32. Manual - part 190

BRC-226

< PRECAUTION >

[FORWARD EMERGENCY BRAKING]

PRECAUTIONS

2.

Turn key switch to the OFF position with the driver side door opened.

3.

Get out of the vehicle and close the driver side door.

4.

Wait at least 3 minutes. For vehicle with the engine listed below, remove the battery terminal after a lapse
of the specified time.

CAUTION:

While waiting, never operate the vehicle such as locking, opening, and closing doors. Violation of
this caution results in the activation of ACC power supply according to the Auto ACC function.

5.

Remove 12V battery terminal.

CAUTION:

After installing 12V battery, always check self-diagnosis results of all ECUs and erase DTC.

INSTRUCTION 2 (FOR VEHICLES PARKED BY IGNITION SWITCH OFF)

1.

Unlock the door with intelligent key or remote keyless entry.
NOTE:
At this moment, ACC power is supplied.

2.

Open the driver side door.

3.

Open the hood.

4.

Close the driver side door.

5.

Wait at least 3 minutes.

CAUTION:

While waiting, never operate the vehicle such as locking, opening, and closing doors. Violation of
this caution results in the activation of ACC power supply according to the Auto ACC function.

6.

Remove 12V battery terminal.

CAUTION:

After installing 12V battery, always check self-diagnosis results of all ECUs and erase DTC.

Precautions for FEB System Service

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CAUTION:

• Never use the distance sensor removed from vehicle. Never disassemble or remodel.
• Erase DTC when replacing parts of FEB system. Then check the operation of FEB system after radar

alignment if necessary.

• Never change FEB system state ON/OFF without the consent of the customer.
• Turn the FEB system OFF in conditions similar to driving, such as free rollers or a chassis dyna-

mometer.

D4D engine

: 20 minutes

HRA2DDT

: 12 minutes

K9K engine

: 4 minutes

M9R engine

: 4 minutes

R9M engine

: 4 minutes

V9X engine

: 4 minutes

PREPARATION

BRC-227

< PREPARATION >

[FORWARD EMERGENCY BRAKING]

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PREPARATION

PREPARATION

Special Service Tools

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Commercial Service Tools

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Tool number 
(Kent-Moore No.)
Tool name

Description

KV99112700
(—)
ICC target board

Uses for radar alignment

JSOIA1012ZZ

Tool name

Description

Spirit level

Uses for distance sensor initial vertical align-
ment.

JSOIA1620ZZ

BRC-228

< SYSTEM DESCRIPTION >

[FORWARD EMERGENCY BRAKING]

COMPONENT PARTS

SYSTEM DESCRIPTION

COMPONENT PARTS

Component Parts Location

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LHD MODELS

Back side of front bumper

No.

Component parts

Function

Chassis control unit

• Brake fluid pressure control signal is received from distance sensor 

via chassis communication.

• Brake fluid pressure control signal is transmitted to ABS actuator 

electric unit (control unit) via CAN communication.

• Refer to 

DAS-166, "Component Parts Location"

 for detailed installa-

tion location.

ABS actuator and electric unit (control unit)

• Vehicle speed signal and the operation statuses of the VDC, TCS and 

ABS systems, etc. are transmitted to the distance sensor via CAN 
communication.

• Refer to 

BRC-14, "Component Parts Location"

 for detailed installation 

location.

TCM

• CVT control related signal is transmitted to distance sensor via CAN 

communication.

• Refer to 

TM-235, "CVT CONTROL SYSTEM : Component Parts Lo-

cation"

 for detailed installation location. (Gasoline engine models)

• Refer to 

TM-466, "CVT CONTROL SYSTEM : Component Parts Lo-

cation"

 for detailed installation location. (Diesel engine models)

JSOIA1636ZZ

COMPONENT PARTS

BRC-229

< SYSTEM DESCRIPTION >

[FORWARD EMERGENCY BRAKING]

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RHD MODELS

ECM

• When Forward Emergency Braking operates, an engine torque down 

request signal is received from the distance sensor.

• Refer to 

EC-28, "ENGINE CONTROL SYSTEM : Component Parts 

Location"

 for detailed installation location. (MR20DD engine models)

• Refer to 

EC-440, "Component Parts Location"

 for detailed installa-

tion location. (QR25DE engine models)

• Refer  to 

EC-812, "Component Parts Location"

 for detailed installation 

location. (R9M engine models)

Stop lamp switch

Stop lamp switch is installed at the upper part of the brake pedal and 
detects a brake operation performed by the driver.

Combination meter

• Performs the following operations using the signals received from the 

distance sensor via the CAN communication

- Description: Displays the FEB operation status
- System display and warning: 

BRC-238, "Menu Displayed by Pressing 

Each Switch"

• Refer  to 

MWI-7, "METER SYSTEM : Component Parts Location"

 for 

detailed installation location.

BCM

• Stop lamp switch signal is transmitted to the distance sensor via CAN 

communication.

• Refer  to 

BCS-6, "BODY CONTROL SYSTEM : Component Parts Lo-

cation"

 for detailed installation location.

Steering angle sensor

Steering angle sensor signal is transmitted to distance sensor via CAN 
communication.

Sonar control unit

• While Forward Emergency Braking is operating, when the system 

wants to recommend an operation to the driver, and when the system 
is canceled, a buzzer sounds due to a sonar output request from the 
distance sensor. 

• Refer to 

SN-8, "Component Parts Location"

 for detailed installation 

location. (With Park Assist)

• Refer  to 

SN-119, "Component Parts Location"

 for detailed installation 

location. (Without Park Assist)

Distance sensor

Distance sensor detects radar reflected from a vehicle ahead by irradi-
ating radar forward and calculates a distance from the vehicle ahead 
and relative speed, based on the detected signal.

No.

Component parts

Function