Nissan Murano Z50 (2006 year). Manual - part 27

POWER DOOR LOCK SYSTEM

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CAN Communication System Description

NIS00163

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

NIS00164

Refer to 

LAN-32, "CAN Communication Unit"

 .

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POWER DOOR LOCK SYSTEM

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Schematic / With Intelligent Key

NIS00165

TIWB0132E

POWER DOOR LOCK SYSTEM

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Wiring Diagram -D/LOCK- / With Intelligent Key

NIS00166

TIWB0769E

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POWER DOOR LOCK SYSTEM

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TIWB0134E

POWER DOOR LOCK SYSTEM

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TIWB0135E

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POWER DOOR LOCK SYSTEM

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TIWB0136E

POWER DOOR LOCK SYSTEM

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TIWB0770E

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POWER DOOR LOCK SYSTEM

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Schematic / Without Intelligent Key

NIS00167

TIWB0138E

POWER DOOR LOCK SYSTEM

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Wiring Diagram -D/LOCK- / Without Intelligent Key

NIS00168

TIWB0771E

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POWER DOOR LOCK SYSTEM

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TIWB0140E

POWER DOOR LOCK SYSTEM

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TIWB0141E

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POWER DOOR LOCK SYSTEM

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TIWB0772E

POWER DOOR LOCK SYSTEM

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Terminals and Reference Value for BCM

NIS00169

*

1

  : With Intelligent Key

*

2

  : In the state that room lamp switch is in "DOOR" position.

TER-

MINA

L 

WIRE 

COLO

R

ITEM

Signal 

input/out-

put

CONDITION

VOLTAGE [V]

(Approx.)

1

R/Y

Key ring illumination out-
put signal 

Output

Key ring illumination is lighting.

Battery voltage

Key ring illumination is being turned 
off.

0

12

R

R/G*

1

Front door switch
(Passenger side)

Input

ON (Door is opened) 

→

 OFF (Door is 

closed) 

0 

→

 Battery voltage

13

R/Y

R/W*

1

Rear door switch RH

Input

ON (Door is opened) 

→

 OFF (Door is 

closed)

0 

→

 Battery voltage

22

BR/W

Power window serial link

Input/out-

put

Ignition switch (ON or power window 
timer operating)

37

B/R

Key switch 

Input

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

Battery voltage 

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

0

39

L

CAN-H

Input/out-

put

—

—

40

Y

CAN-L

Input/out-

put

—

—

41

P

Battery saver output sig-
nal

Output

30 minutes after ignition switch is 
turned to OFF

0

Ignition switch is in ON position

Battery voltage

42

GR

Power source
(Fuse)

Input

—

Battery voltage

44

G/W

Driver door lock actuator 
and fuel lid opener actu-
ator (Unlock)

Output

Door lock and unlock switch
(Free 

→

 Unlock)

0 

→

 Battery voltage 

→

 0

48

R

Room lamp output sig-
nal

Output

Room lamp is lighting.*

2

0

Room lamp is being turned off.*

2

Battery voltage

50

V

All door lock actuators 
(lock)

Output

Door lock and unlock switch
(Free 

→

 Lock)

0 

→

 Battery voltage 

→

 0

51

G/Y

Passenger and rear 
doors lock actuator 
(unlock)

Output

Door lock and unlock switch
(Free 

→

 Unlock)

0 

→

 Battery voltage 

→

 0

52

B

Ground

—

—

0

55

W/B

Power source
 (Fusible link)

Input

—

Battery voltage

58

V/W

Back door switch

Input

ON (Back door is opened) 

→

 

OFF (Back door is closed) 

0 

→

 Battery voltage

62

SB

Front door switch
(Driver side)

Input

ON (Door is opened) 

→

 OFF (Door is 

closed) 

0 

→

 Battery voltage

63

R/W

Rear door switch LH

Input

ON (Door is opened) 

→

 OFF (Door is 

closed)

0 

→

 Battery voltage

PIIA2344J

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CONSULT-II Function (BCM)

NIS0016A

CONSULT-II and display each diagnostic item using the diagnostic test modes shown following.

*: Refer to 

BCS-13, "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”.

4.

Touch “START (NISSAN BASED VHCL)”.

5.

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

GI-39, "CONSULT-II Data Link

Connector (DLC) Circuit"

 .

BCM diagnosis part

Inspection item, self-diagnosis 

mode

Content

BCM

SELF-DIAG RESULTS

Carries out the self-diagnosis.

CAN DIAG SUPPORT MNTR

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

DATA MONITOR

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

DOOR LOCK

WORK SUPPORT

Changes the setting for each function.

DATA MONITOR

Displays the input data of BCM in real time.

ACTIVE TEST

Give a drive signals to load to check the operation.

PIIA1095E

BCIA0029E

BCIA0030E

POWER DOOR LOCK SYSTEM

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6.

Touch “DOOR LOCK”.

7.

Select diagnosis mode.
“WORK SUPPORT”, “DATA MONITOR” and  “ACTIVE TEST”
are available.

CONSULT-II APPLICATION ITEMS
Work Support

Data Monitor

Active Test

PIIA9922E

BCIA0031E

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

Content

IGN ON SW

Indicates [ON/OFF] condition of ignition switch in ON position. 

KEY ON SW

Indicates [ON/OFF] condition of key switch.

CDL LOCK SW

Indicates [ON/OFF] condition of lock signal from door lock and unlock switch.

CDL UNLOCK SW

Indicates [ON/OFF] condition of unlock signal from door lock and unlock switch.

DOOR SW-DR

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

DOOR SW-AS

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

DOOR SW-RR

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

DOOR SW-RL

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

BACK DOOR SW

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

KEY CYL LK-SW

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

KEY CYL UN-SW

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

KEYLESS LOCK

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

KEYLESS UNLOCK

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

Test item in “DOOR LOCK”

Content

ALL LOCK

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

ALL UNLOCK

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

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Work Flow

NIS0016B

1.

Check the symptom and customer's requests.

2.

Understand the outline of system. Refer to 

BL-24, "System Description"

 .

3.

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

BL-42,

"Trouble Diagnoses Chart by Symptom"

 .

4.

Does power door lock system operate normally?
YES: GO TO 5.
NO: GO TO 3.

5.

INSPECTION END.

Trouble Diagnoses Chart by Symptom

NIS0016C

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

BL-42, "Work Flow"

 .

*

1

 : Driver side

*

2

 : Passenger side, rear LH, RH

*

3

 : With Intelligent Key

DR UNLOCK

This test is able to check door lock actuator (driver side) lock/unlock operation.
This actuator unlock when “DR UNLOCK” on CONSULT-II screen is touched.

OTHER UNLOCK

This test is able to check all door lock actuators (except driver side) unlock operation.
These actuators unlock when “OTHER UNLOCK” on CONSULT-II screen is touched.

Test item in “DOOR LOCK”

Content

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. Check power supply and ground circuit

BL-43

2. Check door lock and unlock switch.

BL-50

3. Replace BCM.

BCS-14

Specific door lock actuator does not operate.

1. Check door lock actuator.

BL-52

*

1

BL-53

*

2

2. Replace BCM.

BCS-14

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

1. Check front door key cylinder switch.

BL-54
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2. Replace power window main switch.

–

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

1. Check fuel lid lock actuator circuit. 

BL-56

2. Replace BCM.

BCS-14

Key reminder door system does not operate properly.

1. Check key reminder door mode.*
*: Key reminder door mode can be changed. 
First check key reminder door mode.

2. Check power supply and ground circuit

BL-43

3. Check key switch.

BL-48

4. Check ignition knob switch.*

3

5. Check door switch. 

BL-44

6. Replace BCM.

BCS-14