Nissan Murano Z50 (2004 year). Manual — part 27
POWER DOOR LOCK SYSTEM
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CAN Communication System Description
AIS003CL
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
AIS003KH
Refer to
BL-26
POWER DOOR LOCK SYSTEM
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2004 Murano
Schematic
AIS002EY
TIWA0486E
POWER DOOR LOCK SYSTEM
BL-27
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Wiring Diagram -D/LOCK-
AIS002EZ
FIG. 1
TIWA0487E
BL-28
POWER DOOR LOCK SYSTEM
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2004 Murano
FIG. 2
TIWA0488E
POWER DOOR LOCK SYSTEM
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FIG. 3
TIWA0489E
BL-30
POWER DOOR LOCK SYSTEM
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2004 Murano
FIG. 4
TIWB0023E
POWER DOOR LOCK SYSTEM
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FIG. 5
TIWB0024E
BL-32
POWER DOOR LOCK SYSTEM
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2004 Murano
Terminals and Reference Value for BCM
AIS002HG
Work Flow
AIS002F1
1.
Check the symptom and customer's requests.
2.
Understand the outline of system. Refer to
3.
According to the trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to
"Trouble Diagnoses Chart by Symptom"
4.
Does power door lock system operate normally?
YES: GO TO 5.
NO: GO TO 3.
5.
INSPECTION END.
TERMINAL
WIRE
COLOR
ITEM
CONDITION
VOLTAGE [V]
(Approx.)
12
R/G
Front door switch
(Passenger side)
ON (Door is opened)
→
OFF (Door is
closed)
0
→
Battery voltage
13
R/W
Rear door switch RH
ON (Door is opened)
→
OFF (Door is
closed)
0
→
Battery voltage
22
BR/W
Power window serial link
Ignition switch (ON or power window
timer operating)
37
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
39
L
CAN-H
—
—
40
Y
CAN-L
—
—
42
GR
Power source
(Fuse)
—
Battery voltage
44
G/W
Driver door lock actuator
(Unlock)
Door lock and unlock switch
(Free
→
Unlock)
0
→
Battery voltage
→
0
50
V
All door lock actuators (lock)
Door lock and unlock switch
(Free
→
Lock)
0
→
Battery voltage
→
0
51
G/Y
Passenger and rear doors
lock actuator (unlock)
Door lock and unlock switch
(Free
→
Unlock)
0
→
Battery voltage
→
0
52
B
Ground
—
0
55
W/B
Power source
(Fusible link)
—
Battery voltage
58
V/W
Back door switch
ON (Back door is opened)
→
OFF (Back door is closed)
0
→
Battery voltage
62
SB
Front door switch
(Driver side)
ON (Door is opened)
→
OFF (Door is
closed)
0
→
Battery voltage
63
R/W
Rear door switch LH
ON (Door is opened)
→
OFF (Door is
closed)
0
→
Battery voltage
PIIA2344J
POWER DOOR LOCK SYSTEM
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CONSULT-II Function
AIS002F3
The following functions are executed by combining data received and command transmitted via the communi-
cation line from the BCM.
BCS-14, "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)”.
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
MBIB0233E
BL-34
POWER DOOR LOCK SYSTEM
Revision: 2004 November
2004 Murano
5.
Touch “BCM” on “SELECT SYSTEM” screen.
If “BCM” is not indicated, go to
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
LIIA0033E
PIIA9922E
PIIA9924E
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.
POWER DOOR LOCK SYSTEM
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Active Test
Trouble Diagnoses Chart by Symptom
AIS002F4
NOTE:
Always check the “Work Flow” before troubleshooting. Refer to
.
*
1
: Driver side
*
2
: Passenger side, rear LH, RH
*
3
: Back door
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.
Monitor item
Content
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.
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.
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
2. Check door lock and unlock switch.
3. Replace BCM.
Specific door lock actuator does not operate.
1. Check door lock actuator.
1
2
3
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.
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 circuit. (Lock)
Fuel lid lock actuator does not unlock.
(All door lock actuators are activate properly.)
1. Check fuel lid lock actuator circuit. (Unlock)
Fuel lid opener actuator does not operate at all.
(All door lock actuators are activate properly.)
1. Check fuel lid lock actuator circuit. (Lock and
Unlock)
Key reminder door system does not operate properly.
1. Check power supply and ground circuit
2. Check key switch.
3. Check door switch.
4. Replace BCM.
BL-36
POWER DOOR LOCK SYSTEM
Revision: 2004 November
2004 Murano
Power Supply and Ground Circuit Check
AIS002F2
1.
FUSE INSPECTION
Check the following.
●
50A fusible link (letter F , located in the fuse and fusible link box)
●
10A fuse [No.18 located in the fuse block (J/B)]
NOTE:
Refer to
BL-22, "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
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 M35 terminals 42, 55
and ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace BCM power supply circuit.
3.
CHECK GROUND CIRCUIT
Check continuity between BCM connector M35 terminal 52 (B) and
ground.
OK or NG
OK
>> BCM power supply and ground circuit is OK.
NG
>> Repair or replace BCM ground circuit.
42 (GR) – Ground
: Battery voltage.
55 (W/B) – Ground
: Battery voltage.
PIIA6374E
52 (B) – Ground
: Continuity should exist.
PIIA9326E
POWER DOOR LOCK SYSTEM
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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
BCS-14, "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”, “DOOR SW-RL” and “DOOR SW-RR”) in “DATA
MONITOR” mode with CONSULT-II.
Without CONSULT-II
Check voltage between BCM 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-RL
DOOR SW-RR
PIIA6469E
Door switch
Connector
Terminals
(wire color)
Condition
Voltage [V]
(Approx.)
(+)
(–)
Driver side
M36
62 (SB)
Ground
Door close
↓
Door open
Battery voltage
↓
0
Rear LH
63 (R/W)
Passenger side
M34
12 (R/G)
Rear RH
13 (R/W)
PIIA7003E
BL-38
POWER DOOR LOCK SYSTEM
Revision: 2004 November
2004 Murano
2.
CHECK DOOR SWITCH
1.
Turn ignition switch OFF.
2.
Disconnect door switch and unified BCM connectors.
3.
Check continuity between BCM and door switch.
4.
Check continuity between BCM 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.
Door switch
Connec-
tor
Terminal
(wire color)
Connec-
tor
Terminal
(wire color)
Continuity
Driver side
M36
62 (SB)
D10
4 (SB)
Yes
Rear LH
63 (R/W)
D56
4 (V)
Passenger side
M34
12 (R/G)
D38
4 (R/G)
Rear RH
13 (R/W)
D76
4 (R/W)
Door switch
Connector
Terminal
(wire color)
Continuity
Driver side
M36
62 (SB)
Ground
No
Rear LH
63 (R/W)
Passenger side
M34
12 (R/G)
Rear RH
13 (R/W)
PIIB0888E
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 and ground.
OK or NG
OK
>> Replace BCM.
NG
>> Repair or replace harness.
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.
●
When back door is open
●
When back door is closed
Without CONSULT-II
Check voltage between BCM connector and ground.
*. When interior lamp battery saver control is OFF: Approx. 5V.
OK or NG
OK
>> Back door switch circuit is OK.
NG
>> GO TO 2.
Door switch
Connector
Terminal
Continuity
Driver side
D10
5 (B)
Ground
Yes
Passenger side
D38
Rear RH
D76
Rear LH
D56
5 (G/Y)
PIIA4313E
BACK DOOR SW
: ON
BACK DOOR SW
: OFF
PIIA2488E
Item
Con-
nector
Terminals
(Wire color)
Condition
Voltage [V]
(Approx.)
(+)
(–)
Back door switch
M36
58 (V/W)
Ground
OPEN
0
CLOSE
Battery voltage*
PIIB0889E
BL-40
POWER DOOR LOCK SYSTEM
Revision: 2004 November
2004 Murano
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 M36 terminal 58 and
back door switch connector D100 terminal 1.
4.
Check continuity between BCM connector M36 terminal 58 and
ground.
OK or NG
OK
>> GO TO 3.
NG
>> Repair or replace harness.
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.
58 (V/W) – 1 (V/W)
: Continuity should exist.
58 (V/W) – Ground
: Continuity should not exist.
PIIB0890E
Terminal
Back door switch condition
Continuity
1
3
Open position
Yes
Closed position
No
PIIA4316E
3 (B) - Ground
: Continuity should exist.
PIIA2490E
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