Nissan Murano. Manual - part 296

DAS-74

< DTC/CIRCUIT DIAGNOSIS >

[LDW]

POWER SUPPLY AND GROUND CIRCUIT

POWER SUPPLY AND GROUND CIRCUIT

CAMERA CONTROL UNIT

CAMERA CONTROL UNIT : Diagnosis Procedure

INFOID:0000000009723269

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 CAMERA CONTROL UNIT POWER SUPPLY CIRCUIT 

Check voltage between camera control unit harness connector and ground. 

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair the camera control unit power supply circuit. 

3.

CHECK CAMERA CONTROL UNIT GROUND CIRCUIT

1.

Turn the ignition switch OFF.

2.

Disconnect the camera control unit connector. 

3.

Check for continuity between camera control unit harness connector and ground. 

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair the camera control unit ground circuit. 

PUMP CONTROL UNIT

PUMP CONTROL UNIT : Diagnosis Procedure

INFOID:0000000009723270

1.

CHECK FUSE

Check for blown fuses. 

Is the inspection result normal?

Power source

Fuse No.

Battery power supply

6

Ignition signal

3

Terminal

Condition

Standard 

voltage

Reference 

voltage

(Approx.)

(+)

(–)

Camera control unit

Ignition 

switch

Connector

Terminal

Connector

Terminal

B92

2

B92

1

OFF

9.5 - 16 V

Battery volt-

age

3

OFF

0 - 0.1 V

0 V

ON

9.5 - 16 V

Battery volt-

age

Camera control unit

Ground

Continuity

Connector

Terminal

B92

1

Existed

Power source

Fuse No.

Ignition power supply

47

DAS

POWER SUPPLY AND GROUND CIRCUIT

DAS-75

< DTC/CIRCUIT DIAGNOSIS >

[LDW]

C

D

E

F

G

H

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J

K

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B

N

P

A

YES

>> GO TO 2.

NO

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

2.

CHECK PUMP CONTROL UNIT POWER SUPPLY CIRCUIT 

Check voltage between pump control unit harness connector and ground. 

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair the pump control unit power supply circuit. 

3.

CHECK PUMP CONTROL UNIT GROUND CIRCUIT

1.

Turn the ignition switch OFF.

2.

Disconnect the pump control unit connector. 

3.

Check for continuity between pump control unit harness connector and ground. 

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair the pump control unit ground circuit.

Terminal

Condition

Standard 

voltage

Reference 

voltage

(+)

(–)

Pump control unit

Ignition 

switch

Connector

Terminal

Connector

Terminal

D170

12

D170

5

OFF

0 - 0.1 V

0 V

ON

9.5 - 16 V

Battery volt-

age

Pump control unit

Ground

Continuity

Connector

Terminal

D170

5

Existed

DAS-76

< DTC/CIRCUIT DIAGNOSIS >

[LDW]

WARNING SYSTEMS SWITCH CIRCUIT

WARNING SYSTEMS SWITCH CIRCUIT

Component Function Check

INFOID:0000000009723271

1.

CHECK WARNING SYSTEMS SWITCH INPUT SIGNAL

1.

Turn the ignition switch ON.

2.

Select the DATA MONITOR item “ITS SW 1” of “AVM” with CONSULT.

3.

With operating the warning systems switch, check the monitor status.

Is the inspection result normal?

YES

>> Warning systems switch circuit is normal.

NO

>> Refer to 

DAS-76, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009723272

1.

CHECK WARNING SYSTEMS SWITCH SIGNAL INPUT

1.

Turn the ignition switch ON.

2.

Check voltage between camera control unit harness connector and ground.

Is the inspection result normal?

YES

>> Replace the camera control unit. Refer to 

DAS-94, "Removal and Installation"

.

NO

>> GO TO 2.

2.

CHECK WARNING SYSTEMS SWITCH

1.

Turn ignition switch OFF.

2.

Remove warning systems switch.

3.

Check warning systems switch. Refer to 

DAS-101, "Removal and Installation"

.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Replace the warning systems switch. Refer to 

DAS-101, "Removal and Installation"

.

3.

CHECK WARNING SYSTEMS SWITCH GROUND CIRCUIT

Check continuity between warning systems switch harness connector and the ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair harness or connector.

4.

CHECK WARNING SYSTEMS SWITCH SIGNAL INPUT CIRCUIT FOR OPEN

1.

Disconnect the camera control unit connector.

Monitor item

Condition

Monitor status

ITS SW 1

Warning systems switch is pressed

On

Warning systems switch is not pressed

OFF

Terminals

Condition

Standard 

voltage

Reference 

voltage

(+)

(

−

)

Camera control unit

Ground

Warning 
systems 

switch

Connector

Terminal

B92

17

Pressed

0 - 0.1 V

0 V

Released

9.5 - 16 V

12 V

Warning systems switch 

Ground

Continuity

Connector

Terminal

M39

6

Existed

DAS

WARNING SYSTEMS SWITCH CIRCUIT

DAS-77

< DTC/CIRCUIT DIAGNOSIS >

[LDW]

C

D

E

F

G

H

I

J

K

L

M

B

N

P

A

2.

Check continuity between the camera control unit harness connector and warning systems switch har-
ness connector.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Repair the harnesses or connectors.

5.

CHECK WARNING SYSTEMS SWITCH SIGNAL INPUT CIRCUIT FOR SHORT

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

Is the inspection result normal?

YES

>> Replace the camera control unit. Refer to 

DAS-94, "Removal and Installation"

.

NO

>> Repair the harnesses or connectors.

Component Inspection

INFOID:0000000009723273

1.

CHECK WARNING SYSTEMS SWITCH

Check continuity of warning systems switch.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace warning systems switch.

Camera control unit

Warning systems switch

Continuity

Connector

Terminal

Connector

Terminal

B92

17

M39

7

Existed

Camera control unit

Ground

Continuity

Connector

Terminal

B92

17

Not existed

Terminal

Condition

Continuity

7

9

When warning systems switch is pressed

Existed

When warning systems switch is released

Not existed