Nissan X-Trail 32. Instruction — part 1932

SN-184

< DTC/CIRCUIT DIAGNOSIS >

[WITH PARK ASSIST]

B2725-12 REAR BUZZER

Is the inspection result normal?

YES

>> Replace buzzer (backward). Refer to

SN-242, "REAR : Removal and Installation"

.

NO

>> Repair harness or connector.

Sonar control unit

Ground

Standard

Reference value

(Approx.)

Connector

Terminal

B129

9

—

NOTE:
• Voltage depends on volume.
• Cycle depends on distance between sensor

and obstacle.

JSNIA5232GB

SN

B2725-14 REAR BUZZER

SN-185

< DTC/CIRCUIT DIAGNOSIS >

[WITH PARK ASSIST]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

B2725-14 REAR BUZZER

DTC Description

INFOID:0000000010920192

DTC DETECTION LOGIC

POSSIBLE CAUSE

Harness between sonar control unit and buzzer (backward)

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 “B2725-14” detected?

YES

>> Proceed to

SN-185, "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:0000000010920193

1.

CHECK CONTINUITY BUZZER (BACKWARD) POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect sonar control unit connector and buzzer (backward) connector.

3.

Check continuity between sonar control unit harness connector and buzzer (backward) harness connec-
tor.

4.

Check continuity between sonar control unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair harness or connector.

2.

CHECK CONTINUITY BUZZER DRIVE SIGNAL CIRCUIT

DTC

Trouble diagnosis

(Trouble diagnosis contents)

Detection condition

B2725-14

REAR BUZZER
(Rear buzzer)

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

A break in harness between sonar control unit and buzzer (back-
ward) or a short circuit between sonar control unit and ground is de-
tected when ignition switch is turned ON.

Sonar control unit

Buzzer (backward)

Continuity

Connector

Terminal

Connector

Terminal

B129

15

B66

2

Existed

Sonar control unit

Ground

Continuity

Connector

Terminal

B129

15

Not existed

SN-186

< DTC/CIRCUIT DIAGNOSIS >

[WITH PARK ASSIST]

B2725-14 REAR BUZZER

1.

Check continuity between sonar control unit harness connector and buzzer (backward) harness connec-
tor.

2.

Check continuity between sonar control unit harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK CONTINUITY SONAR CONTROL UNIT

1.

Check continuity between terminals of sonar control unit.

2.

Check continuity between sonar control unit harness connector and ground.

Is the inspection result normal?

YES

>> Replace buzzer (backward). Refer to

SN-242, "REAR : Removal and Installation"

.

NO

>> Replace sonar control unit. Refer to

SN-237, "Removal and Installation"

.

Sonar control unit

Buzzer (backward)

Continuity

Connector

Terminal

Connector

Terminal

B129

9

B66

3

Existed

Sonar control unit

Ground

Continuity

Connector

Terminal

B129

9

Not existed

Sonar control unit

Continuity.

Terminal

15

9

Not existed

Sonar control unit

Ground

Continuity

Terminal

15

Not existed

9

SN

B2728-11 LED

SN-187

< DTC/CIRCUIT DIAGNOSIS >

[WITH PARK ASSIST]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

B2728-11 LED

DTC Description

INFOID:0000000011009383

DTC DETECTION LOGIC

POSSIBLE CAUSE

• Harness between sonar control unit and sonar system switch
• Sonar control unit

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 B2728-11 detected?

YES

>> Proceed to

SN-187, "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:0000000011009384

1.

CHECK SONAR SYSTEM SWITCH INDICATOR SIGNAL CIRCUIT FOR SHORT

1.

Turn ignition switch OFF.

2.

Disconnect sonar control unit harness connector and sonar system switch harness connector.

3.

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

Is the inspection result normal?

YES

>> Replace sonar control unit. Refer to

SN-237, "Removal and Installation"

.

NO

>> Repair harness or connector.

DTC

Trouble diagnosis

(Trouble diagnosis contents)

Detection condition

B2728-11

LED
(Light emitting diode)

SHORT-GND
(Short to ground)

Short circuit to ground is detected in harness between sonar control
unit and sonar system switch when ignition switch is turned ON.

Sonar control unit

Ground

Continuity

Connector

Terminal

B129

17

Not existed