Nissan Murano Z51. Manual - part 401

DLK-112

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

KEY CYLINDER SWITCH

KEY CYLINDER SWITCH

Description

INFOID:0000000005517564

Power window main switch detects condition of the door key cylinder switch and transmits to BCM as the
LOCK or UNLOCK signals. 

Component Function Check

INFOID:0000000005517565

1.

CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL

Check (“KEY CYL LK-SW”, “KEY CYL UN-SW”) in “DATA MONITOR” mode for “POWER DOOR LOCK SYS-
TEM” with CONSULT-III. Refer to 

DLK-55, "DOOR LOCK : CONSULT-III Function (BCM - DOOR LOCK)"

.

Is the inspection result normal?

YES

>> Key cylinder switch is OK.

NO

>> Refer to 

DLK-112, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005517566

1.

CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect front door lock assembly (driver side).

3.

Check voltage between front door lock assembly (driver side) harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK DOOR KEY CYLINDER SIGNAL CIRCUIT

1.

Disconnect power window main switch connector.

2.

Check continuity between power window main switch harness connector and front door lock assembly
(driver side) harness connector.

3.

Check continuity between power window main switch connector and ground.

Monitor item

Condition

KEY CYL LK-SW

Lock

: ON

Neutral / Unlock

: OFF

KEY CYL UN-SW

Unlock

: ON

Neutral / Lock

: OFF

(+)

(–)

Voltage (V)

(Approx.)

Front door lock assembly (driver side)

Connector

Terminal 

D9

5

Ground

5

6

Power window main switch

Front door lock assembly (driver side)

Continuity

Connector

Terminal

Connector

Terminal

D5

4

D9

6

Existed

6

5

KEY CYLINDER SWITCH

DLK-113

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

Is the inspection result normal?

YES

>> Replace power window main switch. Refer to 

PWC-119, "Removal and Installation"

.

NO

>> Repair or replace harness.

3.

CHECK DOOR KEY CYLINDER SWITCH GROUND CIRCUIT

Check continuity between front door lock assembly (driver side) harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

4.

CHECK DOOR KEY CYLINDER SWITCH

Check door key cylinder switch. 
Refer to 

DLK-113, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace front door lock assembly (driver side). Refer to 

DLK-321, "DOOR ASSEMBLY : Removal

and Installation"

.

5.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-39, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000005517567

COMPONENT INSPECTION

1.

CHECK DOOR KEY CYLINDER SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect front door lock assembly (driver side) (key cylinder switch) connector.

3.

Check front door lock assembly (driver side) (key cylinder switch) terminals.

Is the inspection result normal?

YES

>> Door key cylinder switch is OK.

NO

>> Replace front door lock assembly (driver side). Refer to 

DLK-321, "DOOR ASSEMBLY : Removal

and Installation"

.

Power window main switch

Ground

Continuity 

Connector

Terminal

D5

4

Not existed

6

Front door lock assembly (driver side)

Ground

Continuity 

Connector

Terminal

D9

4

Existed

Terminal

Key position

Continuity

Front door lock assembly (driver side) connector

5 

4

Unlock

Existed

Neutral / Lock

Not existed

6

Lock

Existed

Neutral / Unlock

Not existed

DLK-114

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

REMOTE KEYLESS ENTRY RECEIVER

REMOTE KEYLESS ENTRY RECEIVER

Description

INFOID:0000000005517568

Receives Intelligent Key operation and transmits to BCM.

Component Function Check

INFOID:0000000005517569

1.

CHECK FUNCTION

With CONSULT-III

Check remote keyless entry receiver (“RKE OPE COUN1”) in Data Monitor mode with CONSULT-III.

Is the inspection result normal?

YES

>> Remote keyless entry receiver is OK.

NO

>> Refer to 

DLK-114, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005517570

1.

CHECK REMOTE KEYLESS ENTRY RECEIVER OUTPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Check signal between remote keyless entry receiver harness connector and ground with oscilloscope.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK REMOTE KEYLESS ENTRY RECEIVER CIRCUIT 1

1.

Disconnect BCM connector and remote keyless entry receiver connector

2.

Check continuity between BCM harness connector and remote keyless entry receiver harness connector.

3.

Check continuity between BCM harness connector and ground.

Monitor item

Condition

RKE OPE COUN1

Checks whether value changes when operating Intelligent Key.

(+)

(–)

Condition

Signal

(Reference value)

Remote keyless entry receiver

Connector

Terminal

M78

2

Ground

Waiting

(All door closed)

When signal is received

(All door closed)

JMKIA0064GB

JMKIA0065GB

BCM

Remote keyless entry receiver

Continuity 

Connector

Terminal

Connector

Terminal

M122

83

M78

2

Existed

REMOTE KEYLESS ENTRY RECEIVER

DLK-115

< DTC/CIRCUIT DIAGNOSIS >

[WITH INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

DLK

N

O

P

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-95, "Removal and Installation"

.

NO

>> Repair or replace harness between BCM and remote keyless entry receiver.

3.

CHECK REMOTE KEYLESS ENTRY RECEIVER POWER SUPPLY 

1.

Disconnect remote keyless entry receiver.

2.

Check voltage between remote keyless entry receiver harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 4.

4.

CHECK REMOTE KEYLESS ENTRY RECEIVER CIRCUIT 2

1.

Disconnect BCM connector.

2.

Check continuity between BCM harness connector and remote keyless entry receiver harness connector.

3.

Check continuity between BCM connector and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-95, "Removal and Installation"

.

NO

>> Repair or replace harness between BCM and remote keyless entry receiver.

5.

CHECK REMOTE KEYLESS ENTRY RECEIVER GROUND CIRCUIT

Check continuity between remote keyless entry receiver harness connector and ground.

Is the inspection result normal?

YES

>> Replace remote keyless entry receiver. Refer to 

DLK-368, "Removal and Installation"

.

NO

>> GO TO 6.

6.

CHECK REMOTE KEYLESS ENTRY RECEIVER CIRCUIT 3

BCM

Ground

Continuity 

Connector

Terminal

M122

83

Not existed

(+)

(–)

Signal

(Reference value)

Remote keyless entry receiver

Connector

Terminal

M78

4

Ground

JMKIA0064GB

BCM

Remote keyless entry receiver

Continuity 

Connector

Terminal

Connector

Terminal

M122

103

M78

4

Existed

BCM

Ground

Continuity 

Connector

Terminal

M122

103

Not existed

Remote keyless entry receiver

Ground

Continuity

Connector

Terminal

M78

1

Existed