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Nissan Murano Z50 (2003 year). Manual - part 34

POWER DOOR LOCK SYSTEM

BL-67

Revision; 2004 April

2003 Murano

Check Door Lock and Unlock Switch

AIS002F9

CHECK POWER WINDOW OPERATION

Does power window system operate normally?
OK or NG

>> GO TO 2

>> Refer to

GW-17, "POWER WINDOW SYSTEM"

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.

Without CONSULT-II

Remove key from ignition key cylinder.

Check the signal between BCM connector M37 terminal 74 (BR/W) and ground when door lock and
unlock switch is turned “LOCK” or “UNLOCK”.

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

>> Door lock and unlock switch circuit is OK.

>> GO TO 3.

Monitor item

Condition

LOCK SW DR/AS

Door lock and unlock switch is in free position

OFF

Door lock and unlock switch is in LOCK position

UNLK SW DR/AS

Door lock and unlock switch is in free position

OFF

Door lock and unlock switch is in UNLOCK position

LIIA0172E

Connector

Terminal

Voltage (V)

(+)

(–)

M37

74(BR/W)

Ground

PIIA3896E

PIIA1297E

BL-68

POWER DOOR LOCK SYSTEM

Revision; 2004 April

2003 Murano

CHECK POWER WINDOW SERIAL LINK CIRCUIT

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

Check continuity between BCM connector M37 terminal 74 and
power window main switch (door lock and unlock switch) con-
nector D6 terminal 14.

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

Check continuity between BCM connector M37 terminal 74 and
front power window switch (passenger side) connector D35 ter-
minal 16.

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

OK or NG

>> GO TO 4.

>> Repair or replace harness.

CHECK DOOR LOCK AND UNLOCK SWITCH GROUND HARNESS

●

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

●

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

74 (BR/W) – 14 (BR/W)

: Continuity should exist.

14 (BR/W) – Ground

: Continuity should not exist.

PIIA4438E

74 (BR/W) – 16 (BR/W)

: Continuity should exist.

16 (BR/W) – Ground

: Continuity should not exist.

PIIA4439E

17 (B) – Ground

: Continuity should exist.

PIIA4440E

11 (B) – Ground

: Continuity should exist.

PIIA4441E

POWER DOOR LOCK SYSTEM

BL-69

Revision; 2004 April

2003 Murano

OK or NG

>> 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 malfunction part of harness connection.

>> Repair or replace harness.

Check Door Lock Actuator (Front Driver Side)

AIS002FA

CHECK DOOR LOCK ACTUATOR HARNESS

Turn ignition switch OFF.

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

Check continuity between BCM connector M35 terminals 23, 30
and door lock actuator (driver side) connector D10 terminals 2,
3.

OK or NG

>> GO TO 2.

>> Repair or replace harness.

CHECK OUTPUT SIGNAL

Remove the key from ignition key cylinder.

Connect BCM connector.

Check voltage between BCM connector M35 terminals 23, 30 and ground.

OK or NG

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

>> Replace BCM.

23 (G/W) – 2 (G/W)

: Continuity should exist.

30 (V) – 3 (V)

: Continuity should exist.

PIIA7361E

Con-

nector

Terminal

Condition

Voltage (V)

Approx.

(+)

(–)

M35

23 (G/W)

Ground

Driver door lock and unlock
switch is turned to UNLOCK.

→

Battery voltage

30 (V)

Driver door lock and unlock
switch is turned to LOCK.

→

Battery voltage

PIIA6248E

BL-70

POWER DOOR LOCK SYSTEM

Revision; 2004 April

2003 Murano

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

AIS002FB

CHECK DOOR LOCK ACTUATOR HARNESS

Turn ignition switch OFF.

Disconnect BCM and all door lock actuator connectors.

Check continuity between BCM connector M35 terminals 30, 31
and front door lock actuator passenger side, rear door lock actu-
ator LH/RH connector D38, D56, D76 terminals 2, 3.

OK or NG

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

>> Repair or replace harness.

Check Back Door Lock Actuator

AIS002HJ

CHECK BACK DOOR OPENER ACTUATOR HARNESS

Turn ignition switch OFF.

Disconnect BCM and back door lock actuator connectors.

Check continuity between BCM connector M35 terminals 30 (V),
31 (G/Y) and back door lock actuator connector D101 terminals
1 (V), 3 (G/Y).

OK or NG

>> Replace back door actuator.

>> Repair or replace harness.

30 (V) – 3 (V or R/W)

: Continuity should exist.

31 (G/Y) – 2 (G/Y or B)

: Continuity should exist.

PIIA7362E

30 (V) – 1 (V)

: Continuity should exist.

31 (G/Y) – 3 (G/Y)

: Continuity should exist.

PIIA7363E

POWER DOOR LOCK SYSTEM

BL-71

Revision; 2004 April

2003 Murano

Check Door Key Cylinder Switch (Lock)

AIS002FD

CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL (LOCK)

With CONSULT-II

Check door key cylinder switch (“KEY CYL LK SW”) in “DATA MON-
ITOR” mode with CONSULT-II.

Without CONSULT-II

Check voltage between power window main switch (door lock and
unlock switch) connector D6 terminal 4 (L) and ground.

OK or NG

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

>> GO TO 2.

CHECK DOOR KEY CYLINDER SWITCH

Disconnect door key cylinder switch connector.

Check continuity between door key cylinder switch terminals 1
and 5.

OK or NG

>> 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.

>> Replace front door lock assembly (driver side) (door key cylinder switch).

Monitor item

Condition

KEY CYL LK-SW

Door key cylinder switch is in neutral position.

OFF

Door key cylinder switch is in LOCK position.

PIIA6541E

Terminal

(Wire color)

Door key cylinder switch position

Voltage (V)

Approx.

4 (L) - Ground

Neutral / Unlock

Lock

PIIA4446E

Terminal

Door key cylinder switch position

Continuity

1 - 5

Neutral / Unlock

Lock

Yes

PIIA4449E

BL-72

POWER DOOR LOCK SYSTEM

Revision; 2004 April

2003 Murano

Check Door Key Cylinder Switch (Unlock)

AIS002FE

CHECK DOOR KEY CYLINDER SWITCH INPUT SIGNAL (UNLOCK)

With CONSULT-II

●

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

Without CONSULT-II

Check voltage between main power window (door lock and unlock
switch) connector D6 terminal 6 and ground.

OK or NG

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

>> GO TO 2.

CHECK DOOR KEY CYLINDER SWITCH

Disconnect door key cylinder switch connector.

Check continuity between door key cylinder switch terminals 5
and 6.

OK or NG

>> 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

>> Replace front door lock assembly (driver side) (door key cylinder switch).

Monitor item

Condition

LOCK CYL UN-SW

Door key cylinder switch is in neutral position

OFF

Door key cylinder switch is in UNLOCK position

PIIA6542E

Terminal

(Wire color)

Door key cylinder switch position

Voltage (V)

Approx.

6 (R) - Ground

Neutral / Lock

Unlock

PIIA4447E

Terminal

Door key cylinder switch position

Continuity

5 - 6

Neutral/Lock

Unlock

Yes

PIIA4448E

POWER DOOR LOCK SYSTEM

BL-73

Revision; 2004 April

2003 Murano

Check Fuel Lid Lock Actuator (Lock)

AIS003C7

CHECK FUEL LID LOCK ACTUATOR RELAY CIRCUIT

Remove the key from ignition key cylinder.

Disconnect fuel lid lock actuator relay connector.

Check voltage between fuel lid lock actuator relay connector B31 terminal 1 and ground.

>> GO TO 2.

>> Repair or replace harness between BCM and fuel lid

lock actuator relay.

CHECK FUEL LID LOCK ACTUATOR RELAY

Check continuity between fuel lid lock actuator relay terminal 1 and 2.

>> GO TO 3.

>> Replace fuel lid lock actuator relay.

CHECK FUEL LID LOCK ACTUATOR RELAY GROUND CIRCUIT

Check continuity between fuel lid lock actuator relay connector B31
terminal 2 and ground.

>> GO TO 4.

>> Repair or replace harness.

Con-

nector

Terminal

Condition

Voltage (V)

Approx.

(+)

(–)

B31

1 (V)

Ground

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

→

Battery voltage

PIIA6247E

1 – 2

: Continuity should exist.

PIIA6243E

2 (B) – Ground

: Continuity should exist.

PIIA6244E

BL-74

POWER DOOR LOCK SYSTEM

Revision; 2004 April

2003 Murano

CHECK FUEL LID LOCK ACTUATOR RELAY POWER SUPPLY CIRCUIT

Check voltage between fuel lid lock actuator relay connector B31
terminal 5 and ground.

>> Replace fuel lid lock actuator relay.

>> Check the following.

●

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

●

Harness for open or short between fuel lid lock actua-
tor relay and fuse.

Check Fuel Lid Lock Actuator (Unlock)

AIS003C8

CHECK FUEL LID LOCK ACTUATOR RELAY

Disconnect fuel lid lock actuator relay connector.

Check continuity between fuel lid lock actuator relay terminal 3
and 4.

>> GO TO 2.

>> Replace fuel lid lock actuator relay.

CHECK FUEL LID LOCK ACTUATOR GROUND CIRCUIT

Check continuity between fuel lid lock actuator relay connector B31
terminal 4 and ground.

>> Check harness connection.

>> Repair or replace harness.

5 (L) – Ground

: Battery voltage

PIIA6245E

3 – 4

: Continuity should exist.

PIIA6246E

4 (B) – Ground

: Continuity should exist.

PIIA6279E

POWER DOOR LOCK SYSTEM

BL-75

Revision; 2004 April

2003 Murano

Check Fuel Lid Lock Actuator (Lock and Unlock)

AIS003C9

CHECK FUEL LID LOCK ACTUATOR RELAY

Remove the key from ignition key cylinder.

Disconnect fuel lid lock actuator connector.

Check voltage between fuel lid lock actuator connector B23 ter-
minal 2 and ground.

>> GO TO 2.

>> Repair or replace harness between BCM and fuel lid

lock actuator.

CHECK FUEL LID LOCK ACTUATOR

Check continuity between fuel lid lock actuator terminal 1 and 2.

>> GO TO 3.

>> Replace fuel lid lock actuator.

CHECK FUEL LID LOCK ACTUATOR CIRCUIT

Turn ignition switch OFF.

Disconnect fuel lid lock actuator relay connector.

Check continuity between fuel lid lock actuator connector B23 terminal 1 and fuel lid lock actuator relay
connector B31 terminal 3.

>> Replace fuel lid lock actuator relay.

>> Repair or replace harness.

Con-

nector

Terminal

Condition

Voltage (V)

Approx.

(+)

(–)

B23

2 (G/W)

Ground

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

→

Battery voltage

PIIA6242E

1 – 2

: Continuity should exist.

PIIA6241E

1 (G/B) – 3 (G/B)

: Continuity should exist.

PIIA6240E

BL-76

REMOTE KEYLESS ENTRY SYSTEM

Revision; 2004 April

2003 Murano

REMOTE KEYLESS ENTRY SYSTEM

PFP:28596

Component Parts and Harness Connector Location

AIS002FF

PIIA7385E

REMOTE KEYLESS ENTRY SYSTEM

BL-77

Revision; 2004 April

2003 Murano

System Description

AIS003KF

INPUTS

Power is supplied at all times

●

to BCM terminal 7

●

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

●

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 62

●

through key switch terminal 4.

When ignition switch is ACC or ON, power is supplied

●

to BCM terminal 36

●

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 35

●

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

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

●

to BCM terminal 14 and unified meter and A/C amp. terminal 8

●

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

●

through grounds M14 and M78.

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

●

to BCM terminal 10 and unified meter and A/C amp. terminal 7

●

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

●

through grounds M14 and M78.

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

●

to unified meter and A/C amp. terminal 18

●

through rear door switch LH terminal 4 and 5

●

through grounds B7 and B20.

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

●

to unified meter and A/C amp. terminal 17

●

through rear door switch RH terminal 4 and 5

●

through grounds B105 and B116.

Combination meter send door open signal to BCM with CAN communication system.
When back door switch is ON (back door OPEN), ground is supplied

●

to BCM terminal 18

●

through back door switch terminal 1 and 3

●

through 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)

BL-78

REMOTE KEYLESS ENTRY SYSTEM

Revision; 2004 April

2003 Murano

OPERATED PROCEDURE
Power Door Lock Operation

BCM receives a LOCK signal from key fob. BCM locks all doors with input of 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

When the doors are locked or unlocked by key fob, supply power to hazard warning lamp flashes as follows

●

LOCK operation: C mode (flash twice) or S mode (flash twice)

●

UNLOCK operation: C mode (flash once) or S mode (does not flash)

BCM outputs to IPDM E/R for horn reminder signal as DATA LINE (CAN H line and CAN L line).
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

Hazard and horn reminder does not operate if any door switches are ON (any doors are OPEN)
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-110, "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-110, "Work Support"

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-309, "INTERIOR ROOM LAMP"

C mode

S mode

Remote controller
operation

Lock

Unlock

Lock

Unlock

Hazard warning lamp
flash

Twice

Once

Twice

—

Horn sound

Once

—

SEL153WA

REMOTE KEYLESS ENTRY SYSTEM

BL-79

Revision; 2004 April

2003 Murano

Panic Alarm Operation

When key switch is OFF (when ignition key is not inserted in 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-110, "Work Support"

For detailed description, refer to

BL-142, "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-110, "Work Support"

BL-80

REMOTE KEYLESS ENTRY SYSTEM

Revision; 2004 April

2003 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 For 2WD Models

AIS003KD

: Applicable

Body type

Wagon

Axle

2WD

Engine

VQ35DE

Transmission

CVT

Brake control

ABS

VDC

Low tire pressure warning
system

Navigation system

Automatic drive positioner

CAN communication unit

ECM

TCM

Low tire pressure warning
control unit

Display unit

Display control unit

Data link connector

BCM

Unified meter and A/C amp.

Steering angle sensor

Driver seat control unit

ABS actuator and electric
unit (control unit)

IPDM E/R

CAN communication type

BL-81, "TYPE 1/TYPE 2/TYPE 3/TYPE 4/TYPE 5/

TYPE 6/TYPE 7/TYPE 8"

BL-86, "TYPE 9/TYPE10/TYPE 11/TYPE 12/

TYPE 13/TYPE 14/TYPE 15/TYPE 16"

REMOTE KEYLESS ENTRY SYSTEM

BL-81

Revision; 2004 April

2003 Murano

TYPE 1/TYPE 2/TYPE 3/TYPE 4/TYPE 5/TYPE 6/TYPE 7/TYPE 8
System Diagram

●

Type1

●

Type2

●

Type3

SKIA4902E

SKIA4903E

SKIA4904E

BL-82

REMOTE KEYLESS ENTRY SYSTEM

Revision; 2004 April

2003 Murano

●

Type4

●

Type5

●

Type6

SKIA4905E

SKIA4906E

SKIA4907E

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