Nissan Murano Z50 (2003 year). Manual - part 33

POWER DOOR LOCK SYSTEM

BL-51

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FIG. 3

TIWA0360E

BL-52

POWER DOOR LOCK SYSTEM

Revision; 2004 April

2003 Murano

FIG. 4

TIWA0270E

POWER DOOR LOCK SYSTEM

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FIG. 5

TIWA0271E

BL-54

POWER DOOR LOCK SYSTEM

Revision; 2004 April

2003 Murano

FIG. 6

TIWA0324E

POWER DOOR LOCK SYSTEM

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Terminals and Reference Value for BCM

AIS002HG

*1

: These signal are only used to control remote keyless entry system, if unified meter and A/C amp. or CAN communication is malfunc-

tion.

*

2

 : In the state that map lamp switch is in “DOOR” position.

TERMINAL 

WIRE 

COLOR

ITEM

CONDITION

VOLTAGE (V)

Approx.

7

W/B

Battery power supply
 (Fusible link)

—

Battery voltage

8

B

Ground

—

0

10*

1

R

Front door switch
(Passenger side)

ON (Door open) 

→

 OFF (Door closed) 

0 

→

 Battery voltage

14*

1

SB

Front door switch
(Driver side)

ON (Door open) 

→

 OFF (Door closed) 

0 

→

 Battery voltage

18

V/W

Back door switch

ON (Back door open) 

→

 OFF (Back 

door closed) 

0 

→

 Battery voltage

23

G/W

Driver door lock actuator 
(Unlock)

Door lock and unlock switch
(Free 

→

 Unlock)

0 

→

 Battery voltage

24

P

Battery saver output signal

30 minutes after ignition switch is turned 
to OFF

0

Ignition switch is in ON position

Battery voltage

28

W/R

Battery power supply
(power window)

—

Battery voltage

30

V

All door lock actuators (lock)

Door lock and unlock switch
(Free 

→

 Lock)

0 

→

 Battery voltage

31

G/Y

Passenger and rear doors 
lock actuator (unlock)

Door lock and unlock switch
(Free 

→

 Unlock)

0 

→

 Battery voltage

32

R

Room lamp output signal

Map lamp is lighting.*

2

0

Map lamp is being turned off.*

2

Battery voltage

34

R/Y

Key ring ill output signal

Key ring illumination is lighting.

0

Key ring illumination is being turned off.

Battery voltage

62

B/R

Key switch 

Key switch ON (key is inserted in igni-
tion key cylinder)

Battery voltage 

Key switch OFF (key is removed from 
ignition key cylinder)

0

70

L

CAN-H

—

—

71

Y

CAN-L

—

—

72

O

Data link connector

—

—

74

BR/W

Power window serial link

Ignition switch is ON or power window 
retained power operation is activated.

PIIA2344J

BL-56

POWER DOOR LOCK SYSTEM

Revision; 2004 April

2003 Murano

Terminals and Reference Value for Unified Meter and A/C amp.

AIS002HK

Work Flow

AIS002F1

1.

Check the symptom and customer's requests.

2.

Understand the outline of system. Refer to 

BL-24, "System Description"

 .

3.

Perform the preliminary check. Refer to 

BL-56, "Preliminary Check"

 .

4.

According to the trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to 

BL-60,

"Trouble Diagnoses Chart by Symptom"

 .

5.

Does power door lock system operate normally?
YES: GO TO 6.
NO: GO TO 4.

6.

INSPECTION END.

Preliminary Check

AIS002F2

FUSE CHECK

1. 

FUSE INSPECTION

Check 50A fusible link [letter F located in the fuse block (J/B)].
NOTE:
Refer to 

BL-23, "Component Parts and Harness Connector Location"

 .

OK or NG

OK

>> GO TO 2

NG

>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse, refer to 

PG-

3, "POWER SUPPLY ROUTING CIRCUIT"

 .

2. 

CHECK POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector.

3.

Check voltage between BCM connector E118 terminal 7 and
ground.

OK or NG

OK

>> GO TO 3

NG

>> Repair or replace BCM power supply circuit.

TERMINAL 

WIRE 

COLOR

ITEM

CONDITION

VOLTAGE (V)

Approx.

1

L

CAN-H

—

—

7

R

Front door switch
(Passenger side)

ON (Door open) 

→

 OFF (Door closed) 

0 

→

 Battery voltage

8

SB

Front door switch
(driver side)

ON (Door open) 

→

 OFF (Door closed) 

0 

→

 Battery voltage

11

Y

CAN-L

—

—

17

R/Y

Rear door switch RH

ON (Door open) 

→

 OFF (Door closed) 

0 

→

 Battery voltage

18

R/W

Rear door switch LH

ON (Door open) 

→

 OFF (Door closed) 

0 

→

 Battery voltage

7 (W/B) – Ground

: Battery voltage should exist.

PIIA1125E

POWER DOOR LOCK SYSTEM

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3. 

CHECK GROUND CIRCUIT

Check continuity between BCM connector E118 terminal 8 (B) and
ground.

OK or NG

OK

>> BCM power supply and ground circuit is OK.

NG

>> Repair or replace BCM ground circuit.

CONSULT-II Function

AIS002F3

The following functions are executed by combining data received and command transmitted via the communi-
cation line from the BCM.

*: Refer to 

SE-66, "CAN Communication Inspection Using CONSULT-II (Self-Diagnosis)"

 .

CONSULT-II BASIC OPERATION PROCEDURE

CAUTION:

If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.

1.

Turn ignition switch “OFF”.

2.

Connect “CONSULT-II” and “CONSULT-II CONVERTER” to
data link connector.

3.

Turn ignition switch “ON”.

8 (B) – Ground

: Continuity should exist.

PIIA1127E

BCM diagnosis part

Inspection item, self-diagnosis 

mode

Content

BCM C/U*

SELF-DIAG RESULTS

Carries out the self-diagnosis.

DATA 
MONITOR

CAN DIAG SUPPORT 

MNTR

Displays CAN communication system diagnosis, disabled transmission 
status, and communication status of each unit communicated with 
BCM.

SELECTION FROM 

MENU

Displays the input data to BCM on real-time basis.

DOOR LOCK

WORK SUPPORT

Changes the setting for each function.

DATA MONITOR

Displays BCM input data on real-time basis.

ACTIVE TEST

Sends drive signals to door lock actuator to perform operation check.

PIIA1095E

BL-58

POWER DOOR LOCK SYSTEM

Revision; 2004 April

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4.

Touch “START (NISSAN BASED VHCL)”.

5.

Touch “BCM” on “SELECT SYSTEM” screen.
If “BCM” is not indicated, go to 

GI-38, "CONSULT-II Data Link

Connector (DLC) Circuit"

 .

6.

Select item to be diagnosed on “SELECT TEST ITEM” screen.

WORK SUPPORT

DATA MONITOR

MBIB0233E

LIIA0033E

LKIA0099E

Work item 

Description

DOOR LOCK-UNLOCK SET

Select unlock mode can be changed in this mode. Selects ON-OFF of select unlock mode.

ANTI-LOCK OUT SET

Key reminder door mode can be changed in this mode. Selects ON-OFF of key reminder 
door mode.

Monitor item “OPERATION”

Content

KEY ON SW

“ON/OFF”

Indicates [ON/OFF] condition of key switch.

LOCK SW DR/AS

“ON/OFF”

Indicates [ON/OFF] condition of lock signal from lock and unlock switch on power win-
dow main switch or front power window switch (passenger side).

UNLK SW DR/AS

“ON/OFF”

Indicates [ON/OFF] condition of unlock signal from lock and unlock switch on power win-
dow main switch or front power window switch (passenger side).

KEY CYL LK-SW

“ON/OFF”

Indicates [ON/OFF] condition of lock signal from key cylinder.

KEY CYL UN-SW

“ON/OFF”

Indicates [ON/OFF] condition of unlock signal from key cylinder.

LK BUTTON/SIG

“ON/OFF”

Indicates [ON/OFF] condition of lock signal from key fob.

UN BUTTON/SIG

“ON/OFF”

Indicates [ON/OFF] condition of unlock signal from key fob.

IGN ON SW

“ON/OFF”

Indicates [ON/OFF] condition of ignition switch. 

DOOR SW-DR

“ON/OFF”

Indicates [ON/OFF] condition of front door switch LH.

POWER DOOR LOCK SYSTEM

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ACTIVE TEST

DOOR SW-AS

“ON/OFF”

Indicates [ON/OFF] condition of front door switch RH.

BACK DOOR SW

“ON/OFF”

Indicates [ON/OFF] condition of back door switch.

DOOR SW-RR

“ON/OFF”

Indicates [ON/OFF] condition of door switch (Rear).

TRNK OPN MNTR

“ON/OFF”

This is displayed even when it is not equipped.

Monitor item “OPERATION”

Content

Test item

Content

ALL D/LK MTR

This test is able to check all door lock actuators lock operation. These actuators lock when 
“ON” on CONSULT-II screen is touched.

DR D/UN MTR

This test is able to check front door lock actuator LH unlock operation. These actuators lock 
when “ON” on CONSULT-II screen is touched.

NON DR D/UN

This test is able to check door lock actuators (except front door lock actuator LH) unlock oper-
ation. These actuators unlock when “ON” on CONSULT-II screen is touched.

BL-60

POWER DOOR LOCK SYSTEM

Revision; 2004 April

2003 Murano

Trouble Diagnoses Chart by Symptom

AIS002F4

NOTE:
Always check the “Work Flow” before troubleshooting. Refer to 

BL-56, "Work Flow"

 .

*

1

 : Driver side

*

2

 : Passenger side, rear LH, RH

*

3

 : Back door

Symptom

Diagnoses service procedure

Refer to page

Power door lock does not operate with door lock and 
unlock switch on power window main switch or front 
power window switch (passenger side).

1. Preliminary check

BL-56

2. Check door lock and unlock switch.

BL-67

3. Replace BCM.

BCS-36

Specific door lock actuator does not operate.

1. Check door lock actuator.

BL-69

*

1

BL-70

*

2

BL-70

*

3

Power door lock does not operate with front door key cyl-
inder operation, but operates with door lock and unlock 
switch.

1. Check door key cylinder switch.

BL-71
BL-72

2. Replace power window main switch.

–

Fuel lid lock actuator does not lock.
(All door lock actuators are activate properly.)

1. Check fuel lid lock actuator (Lock).

BL-73

Fuel lid lock actuator does not unlock.
(All door lock actuators are activate properly.)

1. Check fuel lid lock actuator (Unlock).

BL-74

Fuel lid opener actuator does not operate at all.
(All door lock actuators are activate properly.)

1. Check fuel lid lock actuator (Lock and Unlock).

BL-75

Key reminder door system does not operate properly.

1. Preliminary check

BL-56

2. Check key switch.

BL-65

3. Check door switch. 

BL-61

4. Replace BCM.

BCS-36

POWER DOOR LOCK SYSTEM

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Revision; 2004 April

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Check Door Switch

AIS003C5

CHECK DOOR SWITCH (EXCEPT BACK DOOR SWITCH)

First perform the “SELF-DIAG RESULT” in “BCM” with CONSULT-II. When perform the each trouble diagno-
sis, refer to

SE-66, "CAN Communication Inspection Using CONSULT-II (Self-Diagnosis)"

 .

1. 

CHECK DOOR SWITCH INPUT SIGNAL

 With CONSULT-II

Check door switches (“DOOR SW-DR”, “DOOR SW-AS” and “DOOR SW-RR”) in “DATA MONITOR” mode
with CONSULT-II.

Without CONSULT-II

Check voltage between unified meter and A/C amp. connector M49 terminals 8 (SB), 7 (R), 18 (R/W), 17 (R/
W) and ground.

OK or NG

OK

>> Door switch circuit is OK.

NG

>> GO TO 2

Monitor item

Condition

DOOR SW-DR

Door is closed

↓

Door is opened

OFF

↓

ON

DOOR SW-AS

DOOR SW-RR

LIIA0035E

Terminals

Condition

Voltage (V)

Approx.

(+)

(–)

Front door switch 
(driver side)

8 (SB)

Ground

Door close

↓

Door open

Battery voltage

↓

0

Front door switch 
(passenger side)

7 (R)

Rear door switch LH

18 (R/W)

Rear door switch RH

17 (R/Y)

PIIA4311E

BL-62

POWER DOOR LOCK SYSTEM

Revision; 2004 April

2003 Murano

2. 

CHECK DOOR SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect door switch and unified meter and A/C amp. connectors.

3.

Check continuity between door switch connectors D10, D38,
D56, D76 terminals 4 and unified meter and A/C amp. connector
M49 terminals 8, 7, 18, 17.

4.

Check continuity between unified meter and A/C amp. connector
M49 terminals 7, 8, 17, 18 and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace harness.

3. 

CHECK DOOR SWITCH

Check continuity between door switch terminals 4 and 5.

OK or NG

OK

>> GO TO 4.

NG

>> Replace door switch.

Item

Terminal

Continuity

Front door switch
(driver side)

4 (SB) – 8 (SB)

Yes

Front door switch
(passenger side)

4 (R/G) – 7 (R)

Rear door switch LH

4 (V) – 18 (R/W)

Rear door switch RH

4 (R/W) – 17 (R/Y)

Item

Terminal

Continuity

Unified meter and A/C amp.

7 (R)

Ground

No

8 (SB)

17 (R/Y)

18 (R/W)

PIIA4312E

Terminal

Door switch condition

Continuity

4 - 5

Open position

Yes

Closed position

No

PIIA4314E

POWER DOOR LOCK SYSTEM

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4. 

CHECK DOOR SWITCH GROUND HARNESS

Check continuity between door switch connectors D10, D38, D56,
D76 terminal 5 and ground.

OK or NG

OK

>> GO TO 5.

NG

>> Repair or replace harness.

5. 

CHECK DOOR SWITCH INPUT SIGNAL

1.

Connect unified meter and A/C amp. connector.

2.

Check voltage between unified meter and A/C amp. connector
M49 terminals 7, 8, 17, 18 and ground.

OK or NG

OK

>> Check harness connection.

NG

>> Replace unified meter and A/C amp.

Item

Terminal

Continuity

Door switch (driver side, 
passenger side, rear RH)

5 (B)

Ground

Yes

Door switch (rear LH)

5 (G/Y)

PIIA4313E

7 (R) – Ground

: Battery voltage

8 (SB) – Ground

: Battery voltage

17 (R/Y) – Ground

: Battery voltage

18 (R/W) – Ground

: Battery voltage

PIIA4311E

BL-64

POWER DOOR LOCK SYSTEM

Revision; 2004 April

2003 Murano

CHECK BACK DOOR SWITCH

1. 

CHECK BACK DOOR SWITCH INPUT SIGNAL

 With CONSULT-II

Check back door switch (“BACK DOOR SW”) in “DATA MONITOR” mode with CONSULT-II.

Without CONSULT-II

Check voltage between BCM connector and ground.

*1: When battery saver control function is not activated.
*2: When battery saver control function is activated.

OK or NG

OK

>> Back door switch circuit is OK.

NG

>> GO TO 2

2. 

CHECK BACK DOOR SWITCH HARNESS

1.

Turn ignition switch OFF.

2.

Disconnect BCM and back door switch connectors.

3.

Check continuity between BCM connector M34 terminal 18 and
back door switch connector D100 terminal 1.

4.

Check continuity between BCM connector M34 terminal 18 and
ground.

OK or NG

OK

>> GO TO 3

NG

>> Repair or replace harness.

Monitor item

Condition

BACK DOOR SW

Back door close

OFF

Back door open

ON

PIIA2488E

Item

Terminals

(Wire color)

Condition

Voltage (V)

Approx.

(+)

(–)

Con-

nector

Terminal

(Wire 

color)

Back door switch

M34

18 (V/W)

Ground

OPEN

0

CLOSE

5*

1

12*

2

PIIA2489E

18 (V/W) – 1 (V/W)

: Continuity should exist.

18 (V/W) – Ground

: Continuity should not exist.

PIIA6221E

POWER DOOR LOCK SYSTEM

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Revision; 2004 April

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3. 

CHECK BACK DOOR SWITCH

Check continuity between back door switch terminals 1 and 3.

OK or NG

OK

>> GO TO 4.

NG

>> Replace back door switch.

4. 

CHECK BACK DOOR SWITCH GROUND HARNESS

Check continuity between back door switch connector D100 terminal 3 (B) and ground.

OK or NG

OK

>> Check harness connection.

NG

>> Repair or replace harness.

Check Key Switch

AIS003C6

1. 

CHECK KEY SWITCH INPUT SIGNAL

 With CONSULT-II

Check ignition key switch “IGN ON SW” in “DATA MONITOR” mode
with CONSULT-II.

 Without CONSULT-II

Check voltage between BCM connector M37 terminal 62 (B/R) and ground.

OK or NG

OK

>> Key switch circuit is OK.

NG

>> GO TO 2.

Terminal

Back door switch condition

Continuity

1 - 3

Open position

Yes

Closed position

No

PIIA4316E

3 (B) - Ground

: Continuity should exist.

PIIA2490E

Monitor item

Condition

KEY ON  SW

Key is removed from IGN key cylinder

OFF

Key is inserted in IGN key cylinder

ON

PIIA6470E

Terminal

(Wire color)

Condition

Voltage (V)

Approx.

62 (B/R)

Ground

Key is removed from ignition key cylinder.

0

Key is inserted in ignition key cylinder.

Battery voltage

PIIA4139E

BL-66

POWER DOOR LOCK SYSTEM

Revision; 2004 April

2003 Murano

2. 

CHECK KEY SWITCH

1.

Disconnect key switch connector.

2.

Check continuity between key switch connector M28 terminals 3 and 4.

OK or NG

OK

>> Check the following.

●

10A fuse [No. 21, located in fuse block (J/B)]

●

Harness for open or short between key switch and
fuse

●

Harness for open or short between BCM and key
switch

NG

>> Replace key switch.

Terminal

Condition

Continuity

3 - 4

Key is removed from IGN key cylinder.

NO

Key is inserted in IGN key cylinder.

YES

PIIA3044E