Infiniti QX56 (Z62). Manual - part 76

AV-158

< DTC/CIRCUIT DIAGNOSIS >

B2705 SENSOR HARNESS OPEN [CR-RL]

B2705 SENSOR  HARNESS OPEN [CR-RL]

DTC Logic

INFOID:0000000006216314

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000006216315

1.

CHECK HARNESS CORNER SENSOR REAR LH SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

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

3.

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

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 HARNESS CORNER SENSOR REAR LH GROUND CIRCUIT

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

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair harness or connector.

DTC No.

CONSULT-III indication

DTC detection condition

Troubleshooting

B2705

SENSOR HARNESS 
OPEN [CR-RL] [B2705]

Corner sensor rear LH harness circuit is open.

Check corner sensor rear LH circuit.

Sonar control unit

Corner sensor rear LH

Continuity

Connector

Terminal

Connector

Terminal

M47

5

B252

1

Existed

Sonar control unit

Ground

Continuity

Connector

Terminal

M47

5

Not existed

Sonar control unit

Corner sensor rear LH

Continuity

Connector

Terminal

Connector

Terminal

M47

12

B252

2

Existed

AV

B2706 CORNER SENSOR [RR]

AV-159

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

B2706 CORNER SENSOR [RR]

DTC Logic

INFOID:0000000006216316

DTC DETECTION LOGIC

DTC No.

CONSULT-III indication

DTC detection condition

Troubleshooting

B2706

CORNER SENSOR [RR] 
[B2706]

Corner sensor rear RH is malfunctioning.

Replace corner sensor rear RH.

AV-160

< DTC/CIRCUIT DIAGNOSIS >

B2707 SENSOR HARNESS OPEN [CR-RR]

B2707 SENSOR  HARNESS OPEN [CR-RR]

DTC Logic

INFOID:0000000006216317

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000006216318

1.

CHECK HARNESS CORNER SENSOR REAR RH SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

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

3.

Check continuity between sonar control unit harness connector and corner sensor rear RH harness con-
nector.

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 HARNESS CORNER SENSOR REAR RH GROUND CIRCUIT

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

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair harness or connector.

DTC No.

CONSULT-III indication

DTC detection condition

Troubleshooting

B2707

SENSOR HARNESS 
OPEN [CR-RR] [B2707]

Corner sensor rear RH harness circuit is open.

Check corner sensor rear RH circuit.

Sonar control unit

Corner sensor rear RH

Continuity

Connector

Terminal

Connector

Terminal

M47

6

B253

1

Existed

Sonar control unit

Ground

Continuity

Connector

Terminal

M47

6

Not existed

Sonar control unit

Corner sensor rear RH

Continuity

Connector

Terminal

Connector

Terminal

M47

12

B253

2

Existed

AV

POWER SUPPLY AND GROUND CIRCUIT

AV-161

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

POWER SUPPLY AND GROUND CIRCUIT

AV CONTROL UNIT

AV CONTROL UNIT : Diagnosis Procedure

INFOID:0000000006216319

1.

CHECK FUSE

Check for blown fuses.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Be sure to eliminate cause of malfunction before installing new fuse.

2.

CHECK POWER SUPPLY CIRCUIT

Check voltage between AV control unit harness connectors and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Check harness between AV control unit and fuse.

3.

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect AV control unit connectors.

3.

Check continuity between AV control unit harness connectors and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair harness or connector.

FRONT DISPLAY UNIT

FRONT DISPLAY UNIT : Diagnosis Procedure

INFOID:0000000006216320

1.

CHECK FUSE

Check for blown fuses.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Be sure to eliminate cause of malfunction before installing new fuse.

2.

CHECK POWER SUPPLY CIRCUIT

Check voltage between front display unit harness connector and ground.

Power source

Fuse No.

Battery

35

Ignition switch ACC or ON

19

Signal name

Connector

Terminal

Ignition switch position

Value (Approx.)

Battery power supply

M208

19

OFF

Battery voltage

ACC power supply

M208

7

ACC

Battery voltage

Signal name

Connector

Terminal

Ignition switch position

Continuity 

Ground

M208

20

OFF

Existed

Power source

Fuse No.

Battery

35

Ignition switch ACC or ON

19