Nissan Murano Z50 (2005 year). Manual - part 30

POWER DOOR LOCK SYSTEM

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Revision: 2005 August

2005 Murano

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.

●

When key is inserted in ignition key cylinder

●

When key is removed from ignition key cylinder

 Without CONSULT-II

Check voltage between BCM connector and ground.

OK or NG

OK

>> Key switch circuit is OK.

NG

>> GO TO 2. (with Intelligent Key system)

NG

>> GO TO 3. (without Intelligent Key system)

2. 

CHECK KEY SWITCH (WITH INTELLIGENT KEY SYSTEM)

1.

Turn ignition switch OFF.

2.

Disconnect key switch and ignition knob switch connector.

3.

Check continuity between key switch and ignition knob switch connector M118 terminals 3 and 4.

OK or NG

OK

>> Check the following

●

10A fuse [No.22, located in the fuse block (J/B)]

●

Harness for open or short between key switch and
ignition knob switch and fuse.

●

Harness for open short between BCM and key switch
and ignition knob switch.

NG

>> Replace key switch and ignition knob switch.

KEY ON SW

: ON

KEY ON SW

: OFF

PIIA6470E

Connector

Terminal

(Wire color)

Condition

Voltage [V]

(Approx.)

(+)

(–)

M34

37 (B/R)

Ground

Key is removed from ignition 

key cylinder.

0

Key is inserted in ignition 

key cylinder.

Battery voltage

PIIA6471E

Terminal

Condition

Continuity

3

4

Key is removed from ignition key cylinder.

No

Key is inserted in ignition key cylinder.

Yes

PIIA6140E

BL-50

POWER DOOR LOCK SYSTEM

Revision: 2005 August

2005 Murano

3. 

CHECK KEY SWITCH (WITHOUT INTELLIGENT KEY SYSTEM)

1.

Turn ignition switch OFF.

2.

Disconnect key switch connector.

3.

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

OK or NG

OK

>> Check the following

●

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

●

Harness for open or short between key switch and
fuse.

●

Harness for open short between BCM and key switch.

NG

>> Replace key switch.

Terminal

Condition

Continuity

3

4

Key is removed from ignition key cylinder.

No

Key is inserted in ignition key cylinder.

Yes

PIIA3044E

POWER DOOR LOCK SYSTEM

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Check Door Lock and Unlock Switch

AIS002F9

1. 

CHECK POWER WINDOW OPERATION

Does power window system operate normally?
OK or NG

OK

>> GO TO 2.

NG

>> Refer to 

GW-17, "POWER WINDOW SYSTEM"

  .

2. 

CHECK DOOR LOCK AND UNLOCK SWITCH INPUT SIGNAL

 With CONSULT-II

Check door lock and unlock switch (“LOCK SW DR/AS” and “UNLK SW DR/AS”) in DATA MONITOR mode
with CONSULT-II.

●

When door lock and unlock switch is turned to “LOCK”:

●

When door lock and unlock switch is turned to “UNLOCK”:

 Without CONSULT-II

1.

Remove key from ignition key cylinder.

2.

Check the signal between BCM connector M34 terminal 22 and ground when door lock and unlock switch
is turned “LOCK” or “UNLOCK”.

3.

Make sure signals which are shown in the figure below can be detected during 10 second just after door
lock and unlock switch is turned “LOCK” or “UNLOCK”.

OK or NG

OK

>> Door lock and unlock switch circuit is OK.

NG

>> GO TO 3.

CDL LOCK SW

: ON

CDL UNLOCK SW

: ON

PIIA6538E

Connector

Terminal

Signal (Reference value)

(+)

(–)

M34

22 (BR/W)

Ground

PIIA6379E

PIIA1297E

BL-52

POWER DOOR LOCK SYSTEM

Revision: 2005 August

2005 Murano

3. 

CHECK POWER WINDOW SERIAL LINK CIRCUIT

1.

Disconnect BCM, power window main switch and front power window switch (passenger side) connec-
tors.

2.

Check continuity between BCM connector M34 terminal 22 and
power window main switch (door lock and unlock switch) con-
nector D6 terminal 14.

3.

Check continuity between power window main switch connector
D6 terminal 14 and ground.

4.

Check continuity between BCM connector M34 terminal 22 and
front power window switch (passenger side) connector D35 ter-
minal 16.

5.

Check continuity between front power window switch (passen-
ger side) connector D35 terminal 16 and ground.

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace harness.

4. 

CHECK DOOR LOCK AND UNLOCK SWITCH GROUND HARNESS

1.

Check continuity between power window main switch (door lock
and unlock switch) connector D7 terminal 17 and ground.

2.

Check continuity between front power window switch (passen-
ger side) connector D35 terminal 11 and ground.

OK or NG

OK

>> Check harness connection.

●

If harness connection is OK, replace power window
main switch or front power window switch (passenger
side).

●

If harness connection is NG, repair or replace mal-
function part of harness connection.

NG

>> Repair or replace harness.

22 (BR/W) – 14 (BR/W)

: Continuity should exist.

14 (BR/W) – Ground

: Continuity should not exist.

PIIB0892E

22 (BR/W) – 16 (BR/W)

: Continuity should exist.

16 (BR/W) – Ground

: Continuity should not exist.

PIIB0893E

17 (B) – Ground

: Continuity should exist.

PIIA4440E

11 (B) – Ground

: Continuity should exist.

PIIA4441E

POWER DOOR LOCK SYSTEM

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Revision: 2005 August

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Check Door Lock Actuator (Driver Side)

AIS002FA

1. 

CHECK DOOR LOCK ACTUATOR  HARNESS

1.

Turn ignition switch OFF.

2.

Disconnect BCM and door lock actuator (driver side) connector.

3.

Check continuity between BCM connector M35 terminals 44, 50
and door lock actuator (driver side) connector D10 terminals 2,
3. 

OK or NG

OK

>> GO TO 2.

NG

>> Repair or replace harness.

2. 

CHECK OUTPUT SIGNAL

1.

Connect BCM connector.

2.

Check voltage between BCM connector M35 terminals 44, 50 and ground.

OK or NG

OK

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

NG

>> Replace BCM.

44 (G/W) – 2 (G/W)

: Continuity should exist.

50 (V) – 3 (V)

: Continuity should exist.

PIIB0894E

Con-

nector

Terminal

Condition

Voltage [V]

(Approx.)

(+)

(–)

M35

44 (G/W)

Ground

Driver door lock and unlock 
switch is turned to UNLOCK.

0 

→

 Battery voltage 

→

 0

50 (V)

Driver door lock and unlock 
switch is turned to LOCK.

0 

→

 Battery voltage 

→

 0

PIIA6383E

BL-54

POWER DOOR LOCK SYSTEM

Revision: 2005 August

2005 Murano

Check Door Lock Actuator (Passenger Side and Rear LH/RH)

AIS002FB

1. 

CHECK DOOR LOCK ACTUATOR  HARNESS

1.

Turn ignition switch OFF.

2.

Disconnect BCM and all door lock actuator connectors. 

3.

Check continuity between BCM connector M35 terminals 50, 51
and front door lock actuator passenger side, rear door lock actu-
ator LH/RH connector D38, D56, D76 terminals 2, 3. 

OK or NG

OK

>> Replace door lock assembly (door lock actuator).

NG

>> Repair or replace harness.

50 (V) – 3 (V or R/W)

: Continuity should exist.

51 (G/Y) – 2 (G/Y or B)

: Continuity should exist.

PIIB0895E

POWER DOOR LOCK SYSTEM

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Revision: 2005 August

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Check Door Key Cylinder Switch / Without Intelligent Key System

AIS002FD

1. 

CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL 

 With CONSULT-II

Check door key cylinder switch (“KEY CYL LK-SW” , "KEY CYL UN-SW") in “DATA MONITOR” mode with
CONSULT-II.

●

When key cylinder switch is turn to “LOCK”

●

When key cylinder switch is turn to “UNLOCK"

 Without CONSULT-II

Check voltage between power window main switch (door lock and
unlock switch) connector and ground.

OK or NG

OK

>> Door key cylinder switch circuit is OK.

NG

>> GO TO 2.

2. 

CHECK DOOR KEY CYLINDER SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect front door lock assembly (driver side) connector.

3.

Check continuity between front door lock assembly terminals 1,
6 and 5.

OK or NG

OK

>> Check the following.

●

Harness for open or short between power window main switch (door lock and unlock switch)
and front door lock assembly (driver side).

●

Front door lock assembly (driver side) ground circuit.

NG

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

KEY CYL LK-SW

: ON

KEY CYL UN-SW

: ON

PIIB1425E

Connector

Terminal 

(Wire color)

Door key cylinder switch position

Voltage [V]

(Approx.)

(+)

(–)

D6

4 (L)

Ground

Neutral / Unlock

5

Lock

0

6 (R)

Neutral / Lock

5

Unlock

0

PIIB4663E

Terminal

Door key cylinder switch position

Continuity

1

5

Neutral / Unlock

No

Lock

Yes

6

Neutral / Lock

No

Unlock

Yes

PIIB4864E

BL-56

POWER DOOR LOCK SYSTEM

Revision: 2005 August

2005 Murano

Check Door Key Cylinder Switch / With Intelligent Key System

AIS002FE

1. 

CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL

 With CONSULT-II

Check door key cylinder switch (“KEY CYL LK-SW”, "KEY CYL UN-SW") in “DATA MONITOR” mode with
CONSULT-II.

●

When key cylinder switch is turn to “LOCK”

●

When key cylinder switch is turn to “UNLOCK”

 Without CONSULT-II

Check voltage between main power window (door lock and unlock
switch) connector and ground.

OK or NG

OK

>> Door key cylinder switch (unlock) circuit is OK.

NG

>> GO TO 2.

2. 

CHECK FRONT DOOR KEY CYLINDER SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect door key cylinder switch connector.

3.

Check continuity between door key cylinder switch terminals 1,
3 and 2.

OK or NG

OK

>> Check the following.

●

Harness for open or short between power window main switch (door lock and unlock switch)
and door key cylinder switch

●

Door key cylinder switch ground circuit

NG

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

KEY CYL LK-SW

: ON

KEY CYL UN-SW

: ON

PIIB1425E

Connector

Terminal

(Wire color)

Door key cylinder switch position

Voltage [V]

(Approx.)

(+)

(–)

D6

6 (R)

Ground

Neutral / Lock

5

Unlock

0

4 (L)

Neutral / Unlock

5

Lock

0

PIIB4663E

Terminal

Door key cylinder switch position

Continuity

3

2

Neutral/Lock

No

Unlock

Yes

1

Neutral/Unlock

No

Lock

Yes

PIIA3355E

POWER DOOR LOCK SYSTEM

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Revision: 2005 August

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Check Select Unlock Relay Circuit

AIS006EI

1. 

CHECK PASSENGER SIDE SELECT UNLOCK RELAY CIRCUIT 1

1.

Turn ignition switch OFF.

2.

Disconnect BCM and passenger side select unlock relay connector.

3.

Check continuity between BCM connector M35 terminal 50 and
passenger side select unlock relay connector M123 terminal 3.

4.

Check continuity between BCM connector M35 terminal 50 and
ground.

OK or NG

OK

>> GO TO 2.

NG

>> Repair or replace harness.

2. 

CHECK PASSENGER SIDE SELECT UNLOCK RELAY CIRCUIT 2

1.

Disconnect rear door lock actuator assembly LH connector.

2.

Check continuity between passenger select unlock relay con-
nector M123 terminal 4 and rear door lock actuator assembly
connector D56 terminal 3.

3.

Check continuity between passenger select unlock relay con-
nector M123 terminal 4 and ground.

OK or NG

OK

>> Refer to 

BL-162, "Check Select Unlock Relay"

NG

>> Repair or replace harness.

Check Fuel Lid Lock Actuator  

AIS003C9

1. 

CHECK FUEL LID LOCK ACTUATOR POWER SUPPLY

Check voltage between fuel lid lock actuator connector and ground.

OK

>> Replace fuel lid lock actuator.

NG

>> GO TO 2.

50 (V) – 3 (V)

: Continuity should exist.

50 (V) – Ground

: Continuity should not exist.

PIIB0403E

4 (L) – 3 (R/W)

: Continuity should exist.

4 (L) – Ground

: Continuity should not exist.

PIIB4865E

Con-

nector

Terminal

Condition

Voltage [V]

(Approx.)

(+)

(–)

B23

1 (V)

Ground

Door lock and unlock switch 
is turned to “UNLOCK”.

0 

→

 Battery voltage 

→

 0

3 (G/W)

Door lock and unlock switch 
is turned to “LOCK”.

0 

→

 Battery voltage 

→

 0

PIIB4862E

BL-58

POWER DOOR LOCK SYSTEM

Revision: 2005 August

2005 Murano

2. 

CHECK FUEL LID LOCK ACTUATOR CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM and fuel lid lock actuator connector.

3.

Check continuity between BCM connector M35 terminal 44, 50
and fuel lid lock actuator connector B23 terminal 1, 3.

OK

>> Check the condition of harness and connector.

NG

>> Repair or replace harness.

44 (G/W) – 3 (G/W)

: Continuity should exist.

50 (V) – 1 (V)

: Continuity should exist.

PIIB4863E

REMOTE KEYLESS ENTRY SYSTEM

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REMOTE KEYLESS ENTRY SYSTEM

PFP:28596

Component Parts and Harness Connector Location

AIS002FF

PIIB4526E

BL-60

REMOTE KEYLESS ENTRY SYSTEM

Revision: 2005 August

2005 Murano

System Description

AIS003KF

INPUTS

Power is supplied at all times

●

to BCM terminal 55

●

through 50A fusible link (letter F , located in the fuse and fusible link box).

●

to BCM terminal 42

●

through 10A fuse [No. 18, located in the fuse block (J/B)].

●

to key switch terminal 3

●

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

When key switch is ON (key is inserted in ignition key cylinder), power is supplied

●

to BCM terminal 37

●

through key switch terminal 4.

When ignition switch is ACC or ON, power is supplied

●

to BCM terminal 11

●

through 10A fuse [No. 6, located in the fuse block (J/B)].

When ignition switch is ON or START, power is supplied

●

to BCM terminal 38

●

through 10A fuse [No. 1, located in the fuse block (J/B)].

Ground is supplied

●

to BCM terminal 52

●

through body grounds E13, E26 and M28.

When front door switch (driver side) is ON (door is OPEN), ground is supplied

●

to BCM terminal 62

●

through front door switch (driver side) terminals 4 and 5

●

through body grounds M14 and M78.

When front door switch (passenger side) is ON (door is OPEN), ground is supplied

●

to BCM terminal 12

●

through front door switch (passenger side) terminals 4 and 5

●

through body grounds M14 and M78.

When rear door switch LH is ON (door is OPEN), ground is supplied

●

to BCM terminal 63

●

through rear door switch LH terminals 4 and 5

●

through body grounds B7 and B20.

When rear door switch RH is ON (door is OPEN), ground is supplied

●

to BCM terminal 13

●

through rear door switch RH terminals 4 and 5

●

through body grounds B105 and B116.

When back door switch is ON (back door OPEN), ground is supplied

●

to BCM terminal 58

●

through back door switch terminals 3 and 4

●

through body grounds B7 and B20.

Key fob signal is inputted to BCM (the antenna of remote keyless entry system is combined with BCM).
The remote keyless entry system controls operation of the

●

power door lock

●

hazard and horn reminder

●

auto door lock

●

room lamp and ignition keyhole illumination

●

panic alarm

●

keyless power window down (open)

REMOTE KEYLESS ENTRY SYSTEM

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OPERATED PROCEDURE
Power Door Lock Operation

BCM locks all doors with receiving LOCK signal from key fob.
When an UNLOCK signal is sent from key fob once, driver's door will be unlocked.
Then, if an UNLOCK signal is sent from key fob again within 5 seconds, all other door will be unlocked.

Hazard and Horn Reminder

Power is supplied at all times

●

to horn relay terminal 2

●

through 10A fuse (No. 32, located in the fuse and fusible link box).

When BCM receives LOCK or UNLOCK signal from key fob with all doors closed, BCM sends horn chirp sig-
nal to IPDM E/R.
IPDM E/R grounds horn relay

●

to horn relay terminal 1

●

through IPDM E/R terminal 51, and

●

to BCM terminals 45 and 46 from hazard warning lamp system

Horn relay is now energized, and hazard warning lamp flashes and horn sounds as a reminder.
The hazard and horn reminder has C mode (horn chirp mode) and S mode (non-horn chirp mode).

Operating function of hazard and horn reminder

How to change hazard and horn reminder mode

 With CONSULT-II

Hazard and horn reminder can be changed using “MULTI ANSWER BACK SET” mode in “WORK SUPPORT”.
Refer to

BL-71, "Work Support"

 .

 Without CONSULT-II

When LOCK and UNLOCK signals are sent from the key fob for more than 2 seconds at the same time, the
hazard and horn reminder mode is changed and hazard warning lamp flashes and horn sounds as follows:

Auto Door Lock Operation

Auto lock function signal is sent for operation when any of the following signals are not sent within 1 minute
after the unlock signal is sent from the key fob:

●

when door switch is turned ON for open.

●

when the key switch is turned ON.

●

when the lock signal is sent from the key fob.

Auto door lock mode can be changed using “AUTO LOCK SET” mode in “WORK SUPPORT”.
Refer to 

BL-71, "Work Support"

 .

C mode

S mode

Remote controller 
operation

Lock

Unlock

Lock

Unlock

Hazard warning lamp 
flash

Twice

Once

Twice

—

Horn sound

Once

—

—

—

SEL153WA

BL-62

REMOTE KEYLESS ENTRY SYSTEM

Revision: 2005 August

2005 Murano

Room Lamp and Keyhole Illumination Operation

When the following conditions come:

●

condition of room lamp switch is DOOR position;

●

door switch OFF (when all the doors are closed);

Remote keyless entry system turns on room lamp and key ring illumination (for 30 seconds) with input of
UNLOCK signal from key fob.
For detailed description, refer to 

LT-175, "INTERIOR ROOM LAMP"

 .

Panic Alarm Operation

When key switch is OFF (when ignition key is not inserted in ignition key cylinder), BCM turns on and off horn
and headlamp intermittently with input of PANIC ALARM signal from key fob.
The alarm automatically turns off after 25 seconds or when BCM receives any signal from key fob.
Panic alarm operation mode can be changed using “PANIC ALARM SET” mode in “WORK SUPPORT”.
Refer to 

BL-71, "Work Support"

 .

For detailed description, refer to 

BL-205, "VEHICLE SECURITY (THEFT WARNING) SYSTEM"

 .

Keyless Power Window Down (Open) Operation

When key fob unlock switch is turned ON with ignition switch OFF, and key fob unlock switch is detected to be
on continuously for 3 seconds, the driver's door and passenger's door power windows are simultaneously
opened.
Power window is operated to open and the operation continues as long as the key fob unlock switch is
pressed.
Keyless power window down operation mode can be changed using “PW DOWN SET” mode in “WORK SUP-
PORT”.
Refer to 

BL-71, "Work Support"

 .

REMOTE KEYLESS ENTRY SYSTEM

BL-63

C

D

E

F

G

H

J

K

L

M

A

B

BL

Revision: 2005 August

2005 Murano

CAN Communication System Description

AIS003CO

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.

CAN Communication Unit

AIS003KD

Refer to 

LAN-29, "CAN COMMUNICATION"

 .

BL-64

REMOTE KEYLESS ENTRY SYSTEM

Revision: 2005 August

2005 Murano

Schematic

AIS002FI

TIWB0143E