Nissan X-Trail 32. Manual - part 1925

SN-156

< BASIC INSPECTION >

[WITH PARK ASSIST]

INSPECTION AND ADJUSTMENT

INSPECTION AND ADJUSTMENT

ADDITIONAL SERVICE WHEN REPLACING SONAR CONTROL UNIT

ADDITIONAL SERVICE WHEN REPLACING SONAR CONTROL UNIT : Description

INFOID:0000000010736642

Perform the following operations when replacing sonar control unit.
Configuration, refer to 

SN-156, "CONFIGURATION (SONAR CONTROL UNIT) : Work Procedure"

.

CONFIGURATION (SONAR CONTROL UNIT)

CONFIGURATION (SONAR CONTROL UNIT) : Description

INFOID:0000000010736643

• Since vehicle specifications are not included in the sonar control unit after replacement, it is required to write

vehicle specifications with CONSULT.

• The sonar control unit configuration includes functions as follows.

CONFIGURATION (SONAR CONTROL UNIT) : Work Procedure

INFOID:0000000010736644

1.

WRITE VEHICLE SPECIFICATION

CONSULT Configuration

Write vehicle specification into sonar control unit.

To write vehicle specification stored in CONSULT into the sonar control unit>>GO TO 2.
To write vehicle specification into the sonar control unit by hand>>GO TO 3.

2.

WRITE STORED DATA

CONSULT Configuration

Select “After Replace ECU” in “Read/Write Configuration.” Write data stored in CONSULT with the “Before
Replace ECU” function into the sonar control unit.

>> GO TO 4.

3.

MANUALLY WRITE VEHICLE SPECIFICATION

CONSULT Configuration

Select “Manual Configuration”, and write the setting value as shown in the following table to sonar control unit
according to the vehicle specification.

CAUTION:

Grasp vehicle specifications precisely. The control of ECU may not function normally if the specifica-
tions are misread.
NOTE:
• The items shown in this list depend on vehicle specifications.
• The config list may not be displayed depending on vehicle specifications. This is not a malfunction.
• If selection items are not displayed on the CONSULT screen, touch “NEXT”.

Function

Description

Read/Write Configuration

Before Replace ECU

Allows the reading of vehicle specification written in sonar control 
unit to store the specification in CONSULT.

After Replace ECU

Allows the writing of the vehicle information stored in CONSULT 
into the sonar control unit.

Manual Configuration

Allows the writing of the vehicle specification into the sonar control 
unit by hand.

MANUAL SETTING ITEM

Detail

Items

Setting value

FRONT SENSOR

NONE

Without front sonar sensor

4 SENSORS

With front corner and center sensor

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INSPECTION AND ADJUSTMENT

SN-157

< BASIC INSPECTION >

[WITH PARK ASSIST]

C

D

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F

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>> GO TO 4.

4.

OPERATION CHECK

Check that the operation of the sonar control unit is normal.

>> WORK END

LDW FUNCTION

WITHOUT

With LDW

WITH

Without LDW

TRANSMISSION

A/T

A/T models

M/T

M/T models

MANUAL SETTING ITEM

Detail

Items

Setting value

SN-158

< DTC/CIRCUIT DIAGNOSIS >

[WITH PARK ASSIST]

B2720-12 CORNER SENSOR [RL]

DTC/CIRCUIT DIAGNOSIS

B2720-12 CORNER SENSOR [RL]

DTC Description

INFOID:0000000010736645

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Harness or connectors (Corner sensor rear LH circuit)
• Corner sensor rear LH

FAIL-SAFE

• Obstacle detection function is stopped
• Alarm display is displayed on the information display of combination meter 

DTC CONFIRMATION PROCEDURE

1.

PERFORM DTC CONFIRMATION PROCEDURE

With CONSULT

1.

Turn ignition switch ON.

2.

Turn ignition switch OFF and wait at least 30 seconds.

3.

Turn ignition switch ON and wait at least 30 seconds or more.

4.

Select “Self Diagnostic Result” mode of “SONAR” using CONSULT.

5.

Check DTC.

Is DTC B2720-12 detected?

YES

>> Proceed to 

SN-158, "Diagnosis Procedure"

.

NO-1

>> To check malfunction symptom before repair: Refer to 

GI-44, "Intermittent Incident"

.

NO-2

>> Confirmation after repair: INSPECTION END

Diagnosis Procedure

INFOID:0000000010736646

1.

CHECK CORNER SENSOR SIGNAL REAR LH CIRCUIT FOR SHORT (1)

1.

Turn ignition switch OFF.

2.

Disconnect sonar control unit harness connector and corner sensor rear LH harness connector.

3.

Turn ignition switch ON.

4.

Check the voltage between sonar control unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace malfunctioning parts.

2.

CHECK CORNER SENSOR SIGNAL REAR LH CIRCUIT FOR SHORT (2)

Check the continuity between corner sensor rear LH harness connector and ground.

DTC

Trouble diagnosis

(Trouble diagnosis contents)

Detecting condition

B2720-12

CORNER SENSOR [RL]
(Corner sensor rear-left)

SHORT-BAT
(Short to battery)

Short circuit to power supply is detected in harness between sonar 
control unit and corner sensor rear LH when ignition switch is turned 
ON.

Terminals

Voltage

(Approx.)

(+)

(

−

)

Sonar control unit

Connector

Terminal

B129

6

Ground

0 V

SN

B2720-12 CORNER SENSOR [RL]

SN-159

< DTC/CIRCUIT DIAGNOSIS >

[WITH PARK ASSIST]

C

D

E

F

G

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B

A

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P

Is the inspection result normal?

YES

>> Replace corner sensor rear LH. Refer to 

SN-240, "REAR : Removal and Installation"

.

NO

>> Repair or replace malfunctioning parts.

Terminals

Continuity

(+)

(

−

)

Corner sensor rear LH

Connector

Terminal

B122

2

Ground

Not existed