Nissan X-Trail 32. Manual - part 1898

SN-48

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT PARK ASSIST]

B2720-92 CORNER SENSOR [RL]

B2720-92 CORNER SENSOR [RL]

DTC Description

INFOID:0000000010735558

DTC DETECTION LOGIC

POSSIBLE CAUSE

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 B2720-92 detected?

YES

>> Proceed to 

SN-48, "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:0000000010735559

1.

PERFORM DTC CONFIRMATION PROCEDURE AGAIN

With CONSULT

1.

Turn ignition switch ON.

2.

Erase DTC.

3.

Perform DTC confirmation procedure again. Refer to 

SN-45, "DTC Description"

.

Is DTC B2720-92 detected again?

YES

>> Replace corner sensor rear LH. Refer to 

SN-114, "REAR : Removal and Installation"

.

NO

>> INSPECTION END

DTC

Trouble diagnosis

(Trouble diagnosis contents)

Detecting condition

B2720-92

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

SENSOR
(Sensor)

Corner sensor rear LH malfunction is detected when ignition switch 
is turned ON.

SN

B2721-12 CENTER SENSOR [RL]

SN-49

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT PARK ASSIST]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

B2721-12 CENTER SENSOR [RL]

DTC Description

INFOID:0000000010735560

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Harness or connectors (Center sensor rear LH circuit)
• Center 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 B2721-12 detected?

YES

>> Proceed to 

SN-49, "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:0000000010735561

1.

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

1.

Turn ignition switch OFF.

2.

Disconnect sonar control unit harness connector and center 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 CENTER SENSOR SIGNAL REAR LH CIRCUIT FOR SHORT (2)

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

DTC

Trouble diagnosis

(Trouble diagnosis contents)

Detecting condition

B2721-12

CENTER SENSOR [RL]
(Center sensor rear-left)

SHORT-BAT
(Short to battery)

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

Terminals

Voltage

(Approx.)

(+)

(

−

)

Sonar control unit

Connector

Terminal

B101

21

Ground

0 V

SN-50

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT PARK ASSIST]

B2721-12 CENTER SENSOR [RL]

Is the inspection result normal?

YES

>> Replace center sensor rear LH. Refer to 

SN-114, "REAR : Removal and Installation"

.

NO

>> Repair or replace malfunctioning parts.

Terminals

Continuity

(+)

(

−

)

Center sensor rear LH

Connector

Terminal

B121

2

Ground

Not existed

SN

B2721-14 CENTER SENSOR [RL]

SN-51

< DTC/CIRCUIT DIAGNOSIS >

[WITHOUT PARK ASSIST]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

B2721-14 CENTER SENSOR [RL]

DTC Description

INFOID:0000000010735562

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Harness or connectors (Center sensor rear LH circuit)
• Center 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 B2721-14 detected?

YES

>> Proceed to 

SN-51, "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:0000000010735563

1.

CHECK CENTER SENSOR SIGNAL REAR LH CIRCUIT FOR OPEN

1.

Turn ignition switch OFF.

2.

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

3.

Check the continuity between sonar control unit harness connector and center sensor rear LH harness
connector.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace malfunctioning parts.

2.

CHECK CENTER SENSOR SIGNAL REAR LH CIRCUIT FOR SHORT

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

DTC

Trouble diagnosis

(Trouble diagnosis contents)

Detecting condition

B2721-14

CENTER SENSOR [RL]
(Center sensor rear-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 center sensor rear LH when ignition 
switch is turned ON.

Sonar control unit

Center sensor rear LH

Continuity

Connector

Terminal

Connector

Terminal

B101

21

B121

2

Existed