Nissan X-Trail 32. Manual - part 1934

SN-192

< DTC/CIRCUIT DIAGNOSIS >

[WITH PARK ASSIST]

B2729-12 CORNER SENSOR [FL]

Is the inspection result normal?

YES

>> Replace corner sensor front LH. Refer to 

SN-239, "FRONT : Removal and Installation"

.

NO

>> Repair or replace malfunctioning parts.

Terminals

Continuity

(+)

(

−

)

Corner sensor front LH

Connector

Terminal

E132

2

Ground

Not existed

SN

B2729-14 CORNER SENSOR [FL]

SN-193

< DTC/CIRCUIT DIAGNOSIS >

[WITH PARK ASSIST]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

B2729-14 CORNER SENSOR [FL]

DTC Description

INFOID:0000000010736681

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Harness or connectors (Corner sensor front LH circuit)
• Corner sensor front 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 B2729-14 detected?

YES

>> Proceed to 

SN-193, "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:0000000010736682

1.

CHECK CORNER SENSOR SIGNAL FRONT LH CIRCUIT FOR OPEN

1.

Turn ignition switch OFF.

2.

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

3.

Check the continuity between sonar control unit harness connector and corner sensor front LH harness
connector.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace malfunctioning parts. 

2.

CHECK CORNER SENSOR SIGNAL FRONT LH CIRCUIT FOR SHORT

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

DTC

Trouble diagnosis

(Trouble diagnosis contents)

Detecting condition

B2729-14

CORNER SENSOR [FL]
(Corner sensor front-left)

OPEN/SHORT-
GND
(Open/Short to 
ground)

Short circuit to ground or open circuit is detected in harness be-
tween sonar control unit and corner sensor front LH when ignition 
switch is turned ON.

Sonar control unit

Corner sensor front LH

Continuity

Connector

Terminal

Connector

Terminal

B128

37

E132

2

Existed

SN-194

< DTC/CIRCUIT DIAGNOSIS >

[WITH PARK ASSIST]

B2729-14 CORNER SENSOR [FL]

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace malfunctioning parts. 

3.

CHECK FRONT SENSOR GROUND CIRCUIT

Check the continuity between sonar control unit harness connector and corner sensor front LH harness con-
nector.

Is the inspection result normal?

YES

>> Replace corner sensor front LH. Refer to 

SN-239, "FRONT : Removal and Installation"

.

NO

>> Repair or replace malfunctioning parts. 

Terminals

Continuity

(+)

(

−

)

Sonar control unit

Connector

Terminal

B128

37

Ground

Not existed

Sonar control unit

Corner sensor front LH

Continuity

Connector

Terminal

Connector

Terminal

B128

36

E132

1

Existed

SN

B2729-55 CORNER SENSOR [FL]

SN-195

< DTC/CIRCUIT DIAGNOSIS >

[WITH PARK ASSIST]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

B2729-55 CORNER SENSOR [FL]

DTC Description

INFOID:0000000010736683

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Corner sensor front LH
• Control unit setting of sonar control unit is incomplete

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 B2729-55 detected?

YES

>> Proceed to 

SN-195, "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:0000000010736684

1.

PERFORM CONFIGURATION OF SONAR CONTROL UNIT

Perform configuration of sonar control unit. Refer to 

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

Work Procedure"

.

>> GO TO 2.

2.

PERFORM DTC CONFIRMATION PROCEDURE AGAIN

Perform DTC confirmation procedure again. Refer to 

SN-156, "CONFIGURATION (SONAR CONTROL UNIT)

: Work Procedure"

.

Is DTC B2729-55 detected again?

YES

>> Replace corner sensor front LH. Refer to 

SN-239, "FRONT : Removal and Installation"

.

NO

>> INSPECTION END.

DTC

Trouble diagnosis

(Trouble diagnosis contents)

Detecting condition

B2729-55

CORNER SENSOR [FL]
(Corner sensor front-left)

CONFIG ERROR
(Configuration er-
ror)

Control unit setting of sonar control unit is incomplete or is not set 
normally.