Nissan X-Trail 32. Manual - part 1908

SN-88

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT PARK ASSIST]

B272B-12 CENTER SENSOR [FR]

B272B-12 CENTER SENSOR [FR]

DTC Description

INFOID:0000000010919348

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Harness or connectors (center sensor front RH circuit)
• Center sensor front RH

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 B272B-12 detected?

YES

>> Proceed to 

SN-88, "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:0000000010919349

1.

CHECK CENTER SENSOR SIGNAL FRONT RH CIRCUIT FOR SHORT (1)

1.

Turn ignition switch OFF.

2.

Disconnect sonar control unit harness connector and center sensor front RH 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 CENTER SENSOR SIGNAL FRONT RH CIRCUIT FOR SHORT (2)

Check the continuity between center sensor front RH harness connector and ground.

DTC

Trouble diagnosis

(Trouble diagnosis contents)

Detecting condition

B272B-12

CENTER SENSOR [FR]
(Center sensor front-right)

SHORT-BAT
(Short to battery)

Short circuit to power supply is detected in harness between sonar 
control unit and center sensor front RH when ignition switch is 
turned ON.

Terminals

Voltage

(Approx.)

(+)

(

−

)

Sonar control unit

Connector

Terminal

B101

1

Ground

0 V

SN

B272B-12 CENTER SENSOR [FR]

SN-89

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT PARK ASSIST]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

Is the inspection result normal?

YES

>> Replace center sensor front RH. Refer to 

SN-113, "FRONT : Removal and Installation"

.

NO

>> Repair or replace malfunctioning parts.

Terminals

Continuity

(+)

(

−

)

Center sensor front RH

Connector

Terminal

E133

2

Ground

Not existed

SN-90

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT PARK ASSIST]

B272B-14 CENTER SENSOR [FR]

B272B-14 CENTER SENSOR [FR]

DTC Description

INFOID:0000000010919350

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Harness or connectors (center sensor front RH circuit)
• Center sensor front RH

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 B272B-14 detected?

YES

>> Proceed to 

SN-90, "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:0000000010919351

1.

CHECK CENTER SENSOR SIGNAL FRONT RH CIRCUIT FOR OPEN

1.

Turn ignition switch OFF.

2.

Disconnect sonar control unit harness connector and center sensor front RH harness connector.

3.

Check the continuity between sonar control unit harness connector and center sensor front RH harness
connector.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace malfunctioning parts.

2.

CHECK CENTER SENSOR SIGNAL FRONT RH CIRCUIT FOR SHORT

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

DTC

Trouble diagnosis

(Trouble diagnosis contents)

Detecting condition

B272B-14

CENTER SENSOR [FR]
(Center sensor front-right)

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

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

Sonar control unit

Center sensor front RH

Continuity

Connector

Terminal

Connector

Terminal

B101

1

E133

2

Existed

SN

B272B-14 CENTER SENSOR [FR]

SN-91

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT PARK ASSIST]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

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 center sensor front RH harness con-
nector.

Is the inspection result normal?

YES

>> Replace center sensor front RH. Refer to 

SN-113, "FRONT : Removal and Installation"

.

NO

>> Repair or replace malfunctioning parts.

Terminals

Continuity

(+)

(

−

)

Sonar control unit

Connector

Terminal

B101

1

Ground

Not existed

Sonar control unit

Center sensor front RH

Continuity

Connector

Terminal

Connector

Terminal

B101

13

E133

1

Existed