Qashqai J11. Sonar system - part 6

SN

U1010 CONTROL UNIT (CAN)

SN-81

< DTC/CIRCUIT DIAGNOSIS >

[WITH PARKING SPACE MEASUREMENT]

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U1010 CONTROL UNIT (CAN)

DTC Logic

INFOID:0000000010478036

DTC DETECTION LOGIC

CONSULT Display 

DTC Detection Condition

Possible Cause

CONTROL UNIT (CAN)
[U1010]

CAN initial diagnosis malfunction is detected.

Replace the sonar control unit if the malfunction 
occurs constantly.
Refer to 

SN-103, "Removal and Installation"

.

SN-82

< DTC/CIRCUIT DIAGNOSIS >

[WITH PARKING SPACE MEASUREMENT]

B2710 SIDE SENSOR [FL]

B2710 SIDE SENSOR [FL]

DTC Logic

INFOID:0000000010478172

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000010478173

Regarding Wiring Diagram information, refer to 

SN-16, "Wiring Diagram"

.

1.

CHECK FRONT SPACE MEASUREMENT SENSOR LH CIRCUIT CONTINUITY

1.

Turn ignition switch OFF.

2.

Disconnect sonar control unit connector and front space measurement sensor LH connector.

3.

Check continuity between sonar control unit connector M61 and front space measurement sensor LH con-
nector E133.

4.

Check continuity between sonar control unit connector M61 and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness or connectors.

2.

CHECK FRONT SPACE MEASUREMENT SENSOR LH SIGNAL CIRCUIT SHORT TO BATTERY

1.

Turn ignition switch ON.

2.

Check voltage between sonar control unit connector M61 and ground.

Is the inspection result normal?

YES

>> Replace front space measurement sensor LH. Refer to 

SN-100, "FRONT SENSOR : Removal

and Installation - Front Sonar Sensors"

.

NO

>> Repair or replace harness or connectors.

CONSULT Display

DTC Detection Condition

Possible Cause

FRONT LEFT SIDE SPACE 
MEASUREMENT SENSOR
[B2710]

• Sensor is not configured.
• Sensor is open or short circuited.
• Sensor element malfunction.

• Sensor configuration.
• Harness or connectors.
• Front space measurement sensor LH.

Sonar control unit

Front space measurement sensor LH

Continuity

Connector

Terminal

Connector

Terminal

M61

28

E133

2

Yes

36

1

Sonar control unit

Ground

Continuity

Connector

Terminal

M61

28

—

No

Sonar control unit

Ground

Voltage

(Approx.)

Connector

Terminal

M61

28

—

0V

SN

B2712 SIDE SENSOR [FR]

SN-83

< DTC/CIRCUIT DIAGNOSIS >

[WITH PARKING SPACE MEASUREMENT]

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B2712 SIDE SENSOR [FR]

DTC Logic

INFOID:0000000010478174

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000010478175

Regarding Wiring Diagram information, refer to 

SN-16, "Wiring Diagram"

.

1.

CHECK FRONT SPACE MEASUREMENT SENSOR RH CIRCUIT CONTINUITY

1.

Turn ignition switch OFF.

2.

Disconnect sonar control unit connector and front space measurement sensor RH connector.

3.

Check continuity between sonar control unit connector M61 and front space measurement sensor RH
connector E125.

4.

Check continuity between sonar control unit connector M61 and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness or connectors.

2.

CHECK FRONT SPACE MEASUREMENT SENSOR RH SIGNAL CIRCUIT SHORT TO BATTERY

1.

Turn ignition switch ON.

2.

Check voltage between sonar control unit connector M61 and ground.

Is the inspection result normal?

YES

>> Replace front space measurement sensor RH. Refer to 

SN-100, "FRONT SENSOR : Removal

and Installation - Front Sonar Sensors"

.

NO

>> Repair or replace harness or connectors.

CONSULT Display

DTC Detection Condition

Possible Cause

FRONT RIGHT SIDE SPACE 
MEASUREMENT SENSOR
[B2711]

• Sensor is not configured.
• Sensor is open or short circuited.
• Sensor element malfunction.

• Sensor configuration.
• Harness or connectors.
• Front space measurement sensor RH.

Sonar control unit

Front space measurement sensor RH

Continuity

Connector

Terminal

Connector

Terminal

M61

39

E125

2

Yes

36

1

Sonar control unit

Ground

Continuity

Connector

Terminal

M61

39

—

No

Sonar control unit

Ground

Voltage

(Approx.)

Connector

Terminal

M61

39

—

0V

SN-84

< DTC/CIRCUIT DIAGNOSIS >

[WITH PARKING SPACE MEASUREMENT]

B2720 CORNER SENSOR [RL]

B2720 CORNER SENSOR [RL]

DTC Logic

INFOID:0000000010478037

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000010478038

Regarding Wiring Diagram information, refer to 

SN-66, "Wiring Diagram"

.

1.

CHECK REAR SONAR CORNER SENSOR LH CIRCUIT CONTINUITY

1.

Turn ignition switch OFF.

2.

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

3.

Check continuity between sonar control unit connector M60 and rear sonar corner sensor LH connector
B116.

4.

Check continuity between sonar control unit connector M60 and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness or connectors.

2.

CHECK REAR SONAR CORNER SENSOR LH SIGNAL CIRCUIT SHORT TO BATTERY

1.

Turn ignition switch ON.

2.

Check voltage between sonar control unit connector M60 and ground.

Is the inspection result normal?

YES

>> Replace rear corner sonar sensor LH. Refer to 

SN-101, "REAR SENSOR : Removal and Installa-

tion - Rear Sonar Sensors"

.

NO

>> Repair or replace harness or connectors.

CONSULT Display

DTC Detection Condition

Possible Cause

REAR LEFT SIDE EXTER-
NAL SENSOR
[B2720]

• Sensor is not configured.
• Sensor is open or short circuited.
• Sensor element malfunction.

• Sensor configuration.
• Harness or connectors.
• Rear sonar sensor LH outer.

Sonar control unit

Rear sonar sensor LH

Continuity

Connector

Terminal

Connector

Terminal

M60

6

B116

2

Yes

22

1

Sonar control unit

Ground

Continuity

Connector

Terminal

M60

6

—

No

Sonar control unit

Ground

Voltage

(Approx.)

Connector

Terminal

M60

6

—

0V

SN

B2721 CENTER SENSOR [RL]

SN-85

< DTC/CIRCUIT DIAGNOSIS >

[WITH PARKING SPACE MEASUREMENT]

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B2721 CENTER SENSOR [RL]

DTC Logic

INFOID:0000000010478039

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000010478040

Regarding Wiring Diagram information, refer to 

SN-66, "Wiring Diagram"

.

1.

CHECK REAR SONAR CENTER SENSOR LH CIRCUIT CONTINUITY

1.

Turn ignition switch OFF.

2.

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

3.

Check continuity between sonar control unit connector M60 and rear sonar center sensor LH connector
B114.

4.

Check continuity between sonar control unit connector M60 and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness or connectors.

2.

CHECK REAR SONAR CENTER SENSOR LH SIGNAL CIRCUIT SHORT TO BATTERY

1.

Turn ignition switch ON.

2.

Check voltage between sonar control unit connector M60 and ground.

Is the inspection result normal?

YES

>> Replace rear center sonar sensor LH. Refer to 

SN-101, "REAR SENSOR : Removal and Installa-

tion - Rear Sonar Sensors"

.

NO

>> Repair or replace harness or connectors.

CONSULT Display

DTC Detection Condition

Possible Cause

REAR LEFT SIDE INTER-
NAL SENSOR
[B2721]

• Sensor is not configured.
• Sensor is open or short circuited.
• Sensor element malfunction.

• Sensor configuration.
• Harness or connectors.
• Rear sonar sensor LH inner.

Sonar control unit

Rear sonar sensor LH

Continuity

Connector

Terminal

Connector

Terminal

M60

20

B114

2

Yes

22

1

Sonar control unit

Ground

Continuity

Connector

Terminal

M60

20

—

No

Sonar control unit

Ground

Voltage

(Approx.)

Connector

Terminal

M60

20

—

0V

SN-86

< DTC/CIRCUIT DIAGNOSIS >

[WITH PARKING SPACE MEASUREMENT]

B2722 CENTER SENSOR [RR]

B2722 CENTER SENSOR [RR]

DTC Logic

INFOID:0000000010478041

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000010478042

Regarding Wiring Diagram information, refer to 

SN-66, "Wiring Diagram"

.

1.

CHECK REAR SONAR CENTER SENSOR RH SIGNAL CIRCUIT CONTINUITY

1.

Turn ignition switch OFF.

2.

Disconnect sonar control unit connector and rear sonar center sensor RH connector.

3.

Check continuity between sonar control unit connector M60 and rear sonar center sensor RH connector
B115.

4.

Check continuity between sonar control unit connector M60 and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness or connectors.

2.

CHECK REAR SONAR CENTER SENSOR RH SIGNAL CIRCUIT SHORT TO BATTERY

1.

Turn ignition switch ON.

2.

Check voltage between sonar control unit connector M60 and ground.

Is the inspection result normal?

YES

>> Replace rear sonar center sensor RH. Refer to 

SN-101, "REAR SENSOR : Removal and Installa-

tion - Rear Sonar Sensors"

.

NO

>> Repair or replace harness or connectors.

CONSULT Display

DTC Detection Condition

Possible Cause

REAR RIGHT SIDE INTER-
NAL SENSOR
[B2722]

• Sensor is not configured.
• Sensor is open or short circuited.
• Sensor element malfunction.

• Sensor configuration.
• Harness or connectors.
• Rear sonar sensor RH inner.

Sonar control unit

Rear sonar sensor RH

Continuity

Connector

Terminal

Connector

Terminal

M60

7

B115

2

Yes

22

1

Sonar control unit

Ground

Continuity

Connector

Terminal

M60

7

—

No

Sonar control unit

Ground

Voltage

(Approx.)

Connector

Terminal

M60

7

—

0V

SN

B2723 CORNER SENSOR [RR]

SN-87

< DTC/CIRCUIT DIAGNOSIS >

[WITH PARKING SPACE MEASUREMENT]

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B2723 CORNER SENSOR [RR]

DTC Logic

INFOID:0000000010478043

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000010478044

Regarding Wiring Diagram information, refer to 

SN-66, "Wiring Diagram"

.

1.

CHECK REAR SONAR CORNER SENSOR RH SIGNAL CIRCUIT CONTINUITY

1.

Turn ignition switch OFF.

2.

Disconnect sonar control unit connector and rear sonar corner sensor RH connector.

3.

Check continuity between sonar control unit connector M60 and rear sonar corner sensor RH connector
B117.

4.

Check continuity between sonar control unit connector M60 and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness or connectors.

2.

CHECK REAR SONAR CORNER SENSOR RH SIGNAL CIRCUIT SHORT TO BATTERY

1.

Turn ignition switch ON.

2.

Check voltage between sonar control unit connector M60 and ground.

Is the inspection result normal?

YES

>> Replace rear sonar corner sensor RH. Refer to 

SN-101, "REAR SENSOR : Removal and Installa-

tion - Rear Sonar Sensors"

.

NO

>> Repair or replace harness or connectors.

CONSULT Display

DTC Detection Condition

Possible Cause

REAR RIGHT SIDE EXTER-
NAL SENSOR
[B2723]

• Sensor is not configured.
• Sensor is open or short circuited.
• Sensor element malfunction.

• Sensor configuration.
• Harness or connectors.
• Rear sonar sensor RH outer.

Sonar control unit

Rear sonar sensor RH

Continuity

Connector

Terminal

Connector

Terminal

M60

21

B117

2

Yes

22

1

Sonar control unit

Ground

Continuity

Connector

Terminal

M60

21

—

No

Sonar control unit

Ground

Voltage

(Approx.)

Connector

Terminal

M60

21

—

0V

SN-88

< DTC/CIRCUIT DIAGNOSIS >

[WITH PARKING SPACE MEASUREMENT]

B2724 SONAR CONTROL UNIT

B2724 SONAR CONTROL UNIT

DTC Logic

INFOID:0000000010478045

DTC DETECTION LOGIC

CONSULT Display

DTC Detection Condition

Possible Cause

ECU
[B2724]

Sonar control unit malfunction.

Replace sonar control unit. Refer to 

SN-103, "Re-

moval and Installation"

.

SN

B2725 REAR BUZZER

SN-89

< DTC/CIRCUIT DIAGNOSIS >

[WITH PARKING SPACE MEASUREMENT]

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B2725 REAR BUZZER

DTC Logic

INFOID:0000000010478046

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000010478047

Regarding Wiring Diagram information, refer to 

SN-66, "Wiring Diagram"

.

1.

CHECK REAR SONAR BUZZER SIGNAL CIRCUIT CONTINUITY

1.

Turn ignition switch OFF.

2.

Disconnect sonar control unit connector and rear sonar buzzer connector.

3.

Check continuity between sonar control unit connector M60 and rear sonar buzzer connector B48.

4.

Check continuity between sonar control unit connector M60 and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness or connectors.

2.

CHECK REAR SONAR BUZZER SIGNAL CIRCUIT SHORT TO BATTERY

1.

Turn ignition switch ON.

2.

Check voltage between sonar control unit connector M60 and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connectors.

3.

CHECK REAR SONAR BUZZER SIGNAL CIRCUIT SHORT TO BUZZER POWER

1.

Turn ignition switch OFF.

2.

Check continuity between sonar control unit connector M60 terminals.

Is the inspection result normal?

CONSULT Display

DTC Detection Condition

Possible Cause

REAR BUZZER
[B2725]

• Rear buzzer is open or short circuited.
• Rear buzzer malfunction.

• Harness or connectors.
• Rear buzzer.

Sonar control unit

Rear sonar buzzer

Continuity

Connector

Terminal

Connector

Terminal

M60

9

B48

3

Yes

Sonar control unit

Ground

Continuity

Connector

Terminal

M60

9

—

No

Sonar control unit

Ground

Voltage

(Approx.)

Connector

Terminal

M60

9

—

0V

Sonar control unit connector M59

Continuity

Terminal

Terminal

15

9

No

SN-90

< DTC/CIRCUIT DIAGNOSIS >

[WITH PARKING SPACE MEASUREMENT]

B2725 REAR BUZZER

YES

>> Replace rear sonar buzzer. Refer to 

SN-104, "BUZZER : Exploded View"

.

NO

>> Repair or replace harness or connectors.

SN

B2729 CORNER SENSOR [FL]

SN-91

< DTC/CIRCUIT DIAGNOSIS >

[WITH PARKING SPACE MEASUREMENT]

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B2729 CORNER SENSOR [FL]

DTC Logic

INFOID:0000000010478048

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000010478049

Regarding Wiring Diagram information, refer to 

SN-66, "Wiring Diagram"

.

1.

CHECK FRONT SONAR CORNER SENSOR LH CIRCUIT CONTINUITY

1.

Turn ignition switch OFF.

2.

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

3.

Check continuity between sonar control unit connector M61 and front sonar corner sensor LH connector
E132.

4.

Check continuity between sonar control unit connector M61 and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness or connectors.

2.

CHECK FRONT SONAR CORNER SENSOR LH SIGNAL CIRCUIT SHORT TO BATTERY

1.

Turn ignition switch ON.

2.

Check voltage between sonar control unit connector M61 and ground.

Is the inspection result normal?

YES

>> Replace front sonar corner sensor LH. Refer to 

SN-100, "FRONT SENSOR : Exploded View"

.

NO

>> Repair or replace harness or connectors.

CONSULT Display

DTC Detection Condition

Possible Cause

FRONT LEFT SIDE EXTER-
NAL SENSOR
[B2729]

• Sensor is not configured.
• Sensor is open or short circuited.
• Sensor element malfunction.

• Sensor configuration.
• Harness or connectors.
• Front sonar sensor LH outer.

Sonar control unit

Front sonar sensor LH

Continuity

Connector

Terminal

Connector

Terminal

M61

37

E132

2

Yes

36

1

Sonar control unit

Ground

Continuity

Connector

Terminal

M61

37

—

No

Sonar control unit

Ground

Voltage

(Approx.)

Connector

Terminal

M61

37

—

0V

SN-92

< DTC/CIRCUIT DIAGNOSIS >

[WITH PARKING SPACE MEASUREMENT]

B272A CENTER SENSOR [FL]

B272A CENTER SENSOR [FL]

DTC Logic

INFOID:0000000010478050

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000010478051

Regarding Wiring Diagram information, refer to 

SN-66, "Wiring Diagram"

.

1.

CHECK FRONT SONAR CENTER SENSOR LH CIRCUIT CONTINUITY

1.

Turn ignition switch OFF.

2.

Disconnect sonar control unit connector and front sonar center sensor LH connector.

3.

Check continuity between sonar control unit connector M61 and front sonar center sensor LH connector
E131.

4.

Check continuity between sonar control unit connector M61 and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness or connectors.

2.

CHECK FRONT SONAR CENTER SENSOR LH SIGNAL CIRCUIT SHORT TO BATTERY

1.

Turn ignition switch ON.

2.

Check voltage between sonar control unit connector M61 and ground.

Is the inspection result normal?

YES

>> Replace front sonar center sensor LH. Refer to 

SN-100, "FRONT SENSOR : Removal and Instal-

lation - Front Sonar Sensors"

.

NO

>> Repair or replace harness or connectors.

CONSULT Display

DTC Detection Condition

Possible Cause

FRONT LEFT SIDE INTER-
NAL SENSOR
[B272A]

• Sensor is not configured.
• Sensor is open or short circuited.
• Sensor element malfunction.

• Sensor configuration.
• Harness or connectors.
• Front sonar sensor LH inner.

Sonar control unit

Front sonar sensor LH

Continuity

Connector

Terminal

Connector

Terminal

M61

29

E131

2

Yes

36

1

Sonar control unit

Ground

Continuity

Connector

Terminal

M61

29

—

No

Sonar control unit

Ground

Voltage

(Approx.)

Connector

Terminal

M61

29

—

0V

SN

B272B CENTER SENSOR [FR]

SN-93

< DTC/CIRCUIT DIAGNOSIS >

[WITH PARKING SPACE MEASUREMENT]

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B272B CENTER SENSOR [FR]

DTC Logic

INFOID:0000000010478052

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000010478053

Regarding Wiring Diagram information, refer to 

SN-66, "Wiring Diagram"

.

1.

CHECK FRONT SONAR CENTER SENSOR RH CIRCUIT CONTINUITY

1.

Turn ignition switch OFF.

2.

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

3.

Check continuity between sonar control unit connector M61 and front sonar center sensor RH connector
E123.

4.

Check continuity between sonar control unit connector M61 and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness or connectors.

2.

CHECK FRONT SONAR CENTER SENSOR RH SIGNAL CIRCUIT SHORT TO BATTERY

1.

Turn ignition switch ON.

2.

Check voltage between sonar control unit connector M61 and ground.

Is the inspection result normal?

YES

>> Replace front sonar center sensor RH. Refer to 

SN-100, "FRONT SENSOR : Removal and Instal-

lation - Front Sonar Sensors"

.

NO

>> Repair or replace harness or connectors.

CONSULT Display

DTC Detection Condition

Possible Cause

FRONT RIGHT SIDE INTER-
NAL SENSOR
[B272B]

• Sensor is not configured.
• Sensor is open or short circuited.
• Sensor element malfunction.

• Sensor configuration.
• Harness or connectors.
• Front sonar sensor RH inner.

Sonar control unit

Front sonar sensor RH

Continuity

Connector

Terminal

Connector

Terminal

M61

38

E123

2

Yes

36

1

Sonar control unit

Ground

Continuity

Connector

Terminal

M61

38

—

No

Sonar control unit

Ground

Voltage

(Approx.)

Connector

Terminal

M61

38

—

0V

SN-94

< DTC/CIRCUIT DIAGNOSIS >

[WITH PARKING SPACE MEASUREMENT]

B272C CORNER SENSOR [FR]

B272C CORNER SENSOR [FR]

DTC Logic

INFOID:0000000010478054

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000010478055

Regarding Wiring Diagram information, refer to 

SN-66, "Wiring Diagram"

.

1.

CHECK FRONT SONAR CORNER SENSOR RH CIRCUIT CONTINUITY

1.

Turn ignition switch OFF.

2.

Disconnect sonar control unit connector and front sonar corner sensor RH connector.

3.

Check continuity between sonar control unit connector M61 and front sonar corner sensor RH connector
E124.

4.

Check continuity between sonar control unit connector M61 and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness or connectors.

2.

CHECK FRONT SONAR CORNER SENSOR RH SIGNAL CIRCUIT SHORT TO BATTERY

1.

Turn ignition switch ON.

2.

Check voltage between sonar control unit connector M61 and ground.

Is the inspection result normal?

YES

>> Replace front sonar corner sensor RH. Refer to 

SN-100, "FRONT SENSOR : Removal and Instal-

lation - Front Sonar Sensors"

.

NO

>> Repair or replace harness or connectors.

CONSULT Display

DTC Detection Condition

Possible Cause

FRONT RIGHT SIDE EX-
TERNAL SENSOR
[B272C]

• Sensor is not configured.
• Sensor is open or short circuited.
• Sensor element malfunction.

• Sensor configuration.
• Harness or connectors.
• Front sonar sensor RH outer.

Sonar control unit

Front sonar sensor RH

Continuity

Connector

Terminal

Connector

Terminal

M61

30

E124

2

Yes

36

1

Sonar control unit

Ground

Continuity

Connector

Terminal

M61

30

—

No

Sonar control unit

Ground

Voltage

(Approx.)

Connector

Terminal

M61

30

—

0V

SN

B272D FRONT BUZZER

SN-95

< DTC/CIRCUIT DIAGNOSIS >

[WITH PARKING SPACE MEASUREMENT]

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

B272D FRONT BUZZER

DTC Logic

INFOID:0000000010478056

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000010478057

Regarding Wiring Diagram information, refer to .

SN-66, "Wiring Diagram"

1.

CHECK FRONT SONAR BUZZER SIGNAL CIRCUIT CONTINUITY

1.

Turn ignition switch OFF.

2.

Disconnect sonar control unit connector and front sonar buzzer connector.

3.

Check continuity between sonar control unit connector M60 and front sonar buzzer connector M72.

4.

Check continuity between sonar control unit connector M60 and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness or connectors.

2.

CHECK FRONT SONAR BUZZER SIGNAL CIRCUIT SHORT TO BATTERY

1.

Turn ignition switch ON.

2.

Check voltage between sonar control unit connector M60 and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connectors.

3.

CHECK FRONT SONAR BUZZER SIGNAL CIRCUIT SHORT TO BUZZER POWER

1.

Turn ignition switch OFF.

2.

Check continuity between sonar control unit connector M60 terminals.

Is the inspection result normal?

CONSULT Display

DTC Detection Condition

Possible Cause

FRONT BUZZER
[B272D]

• Front buzzer is open or short circuited.
• Front buzzer malfunction.

• Harness or connectors.
• Front buzzer.

Sonar control unit

Front sonar buzzer

Continuity

Connector

Terminal

Connector

Terminal

M60

10

M72

3

Yes

Sonar control unit

Ground

Continuity

Connector

Terminal

M60

10

—

No

Sonar control unit

Ground

Voltage

(Approx.)

Connector

Terminal

M60

10

—

0V

Sonar control unit connector M60

Continuity

Terminal

Terminal

2

10

No

SN-96

< DTC/CIRCUIT DIAGNOSIS >

[WITH PARKING SPACE MEASUREMENT]

B272D FRONT BUZZER

YES

>> Replace front sonar buzzer. Refer to 

SN-105, "BUZZER : Removal and Installation - Front"

.

NO

>> Repair or replace harness or connectors.