Infiniti QX56 (Z62). Manual - part 75

AV-154

< DTC/CIRCUIT DIAGNOSIS >

B2701 SENSOR HARNESS OPEN [CR-FL]

B2701 SENSOR  HARNESS OPEN [CR-FL]

DTC Logic

INFOID:0000000006216308

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000006216309

1.

CHECK HARNESS CORNER SENSOR FRONT LH SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

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

3.

Check continuity between sonar control unit harness connector and corner sensor front 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 FRONT LH GROUND CIRCUIT

Check continuity between sonar control unit harness connector and corner sensor front 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

B2701

SENSOR HARNESS 
OPEN [CR-FL] [B2701]

Corner sensor front LH harness circuit is open.

Check corner sensor front LH circuit.

Sonar control unit

Corner sensor front LH

Continuity

Connector

Terminal

Connector

Terminal

M47

3

E221

1

Existed

Sonar control unit

Ground

Continuity

Connector

Terminal

M47

3

Not existed

Sonar control unit

Corner sensor front LH

Continuity

Connector

Terminal

Connector

Terminal

M47

12

E221

2

Existed

AV

B2702 CORNER SENSOR [FR]

AV-155

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

B2702 CORNER SENSOR [FR]

DTC Logic

INFOID:0000000006216310

DTC DETECTION LOGIC

DTC No.

CONSULT-III indication

DTC detection condition

Troubleshooting

B2702

CORNER SENSOR [FR] 
[B2702]

Corner sensor front RH is malfunctioning.

Replace corner sensor front RH.

AV-156

< DTC/CIRCUIT DIAGNOSIS >

B2703 SENSOR HARNESS OPEN [CR-FR]

B2703 SENSOR  HARNESS OPEN [CR-FR]

DTC Logic

INFOID:0000000006216311

DTC DETECTION LOGIC

Diagnosis Procedure

INFOID:0000000006216312

1.

CHECK HARNESS CORNER SENSOR FRONT RH SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

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

3.

Check continuity between sonar control unit harness connector and corner sensor front 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 FRONT RH GROUND CIRCUIT

Check continuity between sonar control unit harness connector and corner sensor front RH harness connec-
tor.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair harness or connector.

DTC No.

CONSULT-III indication

DTC detection condition

Troubleshooting

B2703

SENSOR HARNESS 
OPEN [CR-FR] [B2703]

Corner sensor front RH harness circuit is open.

Check corner sensor front RH circuit.

Sonar control unit

Corner sensor front RH

Continuity

Connector

Terminal

Connector

Terminal

M47

4

E222

1

Existed

Sonar control unit

Ground

Continuity

Connector

Terminal

M47

4

Not existed

Sonar control unit

Corner sensor front RH

Continuity

Connector

Terminal

Connector

Terminal

M47

12

E222

2

Existed

AV

B2704 CORNER SENSOR [RL]

AV-157

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

K

L

M

B

A

O

P

B2704 CORNER SENSOR [RL]

DTC Logic

INFOID:0000000006216313

DTC DETECTION LOGIC

DTC No.

CONSULT-III indication

DTC detection condition

Troubleshooting

B2704

CORNER SENSOR [RL] 
[B2704]

Corner sensor rear LH is malfunctioning.

Replace corner sensor rear LH.