Nissan Murano Z50 (2003 year). Manual — part 36
REMOTE KEYLESS ENTRY SYSTEM
BL-99
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●
Type31
●
Type32
SKIA4932E
SKIA4933E
BL-100
REMOTE KEYLESS ENTRY SYSTEM
Revision; 2004 April
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Input/output Signal Chart
T: Transmit R: Receive
Signals
ECM
TCM
Low
tire
pres-
sure
warn-
ing
con-
trol
unit
Dis-
play
unit
Dis-
play
con-
trol
unit
BCM
Uni-
fied
meter
and
A/C
amp.
Steer
ing
angle
sen-
sor
Drive
r seat
con-
trol
unit
AWD
con-
trol
unit
ABS
actu-
ator
and
elec-
tric
unit
(con-
trol
unit)
IPDM
E/R
Engine and CVT integrated control
signal
T
R
R
T
Second position signal
R
T
VDC operation signal
R
R
T
Stop lamp switch signal
R
T
R
Key switch signal
T
R
Ignition switch signal
T
R
R
P range signal
T
R
R
Closed throttle position signal
T
R
Wide open throttle position signal
T
R
Second position indicator signal
T
R
R
Engine speed signal
T
R
R
R
R
R
R
Engine status signal
T
R
Engine coolant temperature signal
T
R
Accelerator pedal position signal
T
R
R
R
Fuel consumption monitor signal
T
R
CVT self-diagnosis signal
R
T
Input shaft revolution signal
R
T
R
Output shaft revolution signal
R
T
R
Air conditioner switch signal
R
T
A/C compressor request signal
T
R
A/C compressor feedback signal
T
R
T
Blower fan motor switch signal
R
T
A/C control signal
T
T
R
R
R
T
Cooling fan speed request signal
T
R
Position lights request signal
T
R
R
Low beam request signal
T
R
Low beam status signal
R
T
High beam request signal
T
R
R
High beam status signal
R
T
Front fog lights request signal
T
R
Vehicle speed signal
R
R
R
T
R
R
R
R
T
R
Sleep request 1 signal
T
R
Sleep request 2 signal
T
R
REMOTE KEYLESS ENTRY SYSTEM
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Door switch signal
R
T
R
R
T
R
R
R
Turn indicator signal
T
R
Key fob ID signal
T
R
Key fob door unlock signal
T
R
Seat belt buckle switch signal
R
T
Oil pressure switch signal
R
T
T
R
Buzzer output signal
T
R
Fuel level sensor signal
R
T
Fuel level low warning signal
R
R
T
Malfunction indicator signal
T
R
ASCD SET lamp signal
T
R
ASCD CRUISE lamp signal
T
R
Front wiper request signal
T
R
Front wiper stop position signal
R
T
Rear window defogger switch signal
T
R
Rear window defogger control signal
R
R
R
T
Hood switch signal
R
T
Theft warning horn request signal
T
R
Horn chirp signal
T
R
Steering angle sensor signal
T
R
Tire pressure signal
T
R
Tire pressure data signal
T
R
R
CVT position indicator signal
T
R
R
ABS warning lamp signal
R
T
VDC OFF indicator lamp signal
R
T
SLIP indicator lamp signal
R
T
Brake warning lamp signal
R
T
System setting signal
T
T
R
AWD warning lamp signal
R
T
AWD lock indicator lamp signal
R
T
AWD lock switch signal
T
R
Parking brake switch signal
R
T
R
Signals
ECM
TCM
Low
tire
pres-
sure
warn-
ing
con-
trol
unit
Dis-
play
unit
Dis-
play
con-
trol
unit
BCM
Uni-
fied
meter
and
A/C
amp.
Steer
ing
angle
sen-
sor
Drive
r seat
con-
trol
unit
AWD
con-
trol
unit
ABS
actu-
ator
and
elec-
tric
unit
(con-
trol
unit)
IPDM
E/R
BL-102
REMOTE KEYLESS ENTRY SYSTEM
Revision; 2004 April
2003 Murano
Schematic
AIS002FI
TIWA0272E
REMOTE KEYLESS ENTRY SYSTEM
BL-103
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Wiring Diagram — KEYLES—
AIS002FJ
FIG. 1
TIWA0273E
BL-104
REMOTE KEYLESS ENTRY SYSTEM
Revision; 2004 April
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FIG. 2
TIWA0274E
REMOTE KEYLESS ENTRY SYSTEM
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FIG. 3
TIWA0275E
BL-106
REMOTE KEYLESS ENTRY SYSTEM
Revision; 2004 April
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Terminals and Reference Value for BCM
AIS002N0
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 input signal
(passenger side)
ON (Door is opened)
→
OFF (Door is
closed)
0
→
Battery voltage
14*
1
SB
Front door switch input signal
(driver side)
ON (Door is opened)
→
OFF (Door is
closed)
0
→
Battery voltage
18
V/W
Back door switch input signal
ON (Back door is opened)
→
OFF
(Back door is closed)
0
→
Battery voltage
21,22
G/Y: 21
G/B: 22
Flasher output signal
(Left: 22, Right: 21)
When door lock is operated with key
fob, turn signal lamp blinks twice.*
2
When door unlock is operated with
key fob, turn signal lamp blinks
once.*
2
23
G/W
Door unlock output signal
(driver door and fuel lid lock
actuator)
Door lock and unlock switch
(Free
→
Lock)
0
→
Battery voltage
24
P
Battery saver output signal
For 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
Door lock output signal
(all door lock actuators)
Door lock and unlock switch
(Free
→
Lock)
0
→
Battery voltage
31
G/Y
Door unlock output signal
(passenger, rear and back door
lock actuators)
Door lock and unlock switch
(Free
→
Unlock)
0
→
Battery voltage
32
R
Room lamp output signal
Room lamp is lighting.*
3
0
Room lamp is being turned off.*
3
Battery voltage
34
R/Y
Key ring ill output signal
Ignition keyhole illumination is light-
ing.
0
Ignition keyhole illumination is being
turned off.
Battery voltage
35
R
Ignition switch ON power supply
Ignition switch is in ON position
Battery voltage
36
P/B
Ignition switch ACC power sup-
ply
Ignition switch is in ACC position
Battery voltage
62
B/R
Key switch input signal
Key switch ON (key is inserted in
ignition key cylinder)
Battery voltage
Key switch OFF (key is removed from
ignition key cylinder)
0
70
L
CAN-H
—
—
PIIA2487J
PIIA2486J
REMOTE KEYLESS ENTRY SYSTEM
BL-107
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*1
: These signals are only used to control remote keyless entry system, when unified meter and A/C amp. or CAN communication is mal-
function.
*
2
: In the state that hazard reminder operates
*
3
: In the state that map lamp switch is in “DOOR” position
Terminals and Reference Value for IPDM E/R
AIS002FL
*: In the state that horn reminder and panic alarm operates.
Terminals and Reference Value for Unified Meter and A/C amp.
AIS002N1
71
Y
CAN-L
—
—
72
O
Data link connector
—
—
74
BR/W
Power window serial link
Ignition switch is ON or power win-
dow retained power operation is acti-
vated.
TERMINAL
WIRE
COLOR
ITEM
CONDITION
VOLTAGE (V)
Approx.
PIIA2344J
TERMINAL
WIRE
COLOR
ITEM
CONDITION
VOLTAGE (V)
Approx.
14
B
Ground
—
0
45
B
Ground
—
0
48
L
CAN – H
—
—
49
Y
CAN – L
—
—
53
G/O
Horn relay
When door lock or panic alarm are oper-
ated using key fob*
(ON
→
OFF)
0
→
Battery voltage
TERMINAL
WIRE
COLOR
ITEM
CONDITION
VOLTAGE (V)
Approx.
1
L
CAN-H
—
—
7
R
Front door switch (passenger side)
input signal
ON (Door is opened)
→
OFF (Door is closed)
0
→
Battery voltage
8
SB
Front door switch (driver side) input
signal
ON (Door is opened)
→
OFF (Door is closed)
0
→
Battery voltage
11
Y
CAN-L
—
—
17
R/Y
Rear door switch RH input signal
ON (Door is opened)
→
OFF (Door is closed)
0
→
Battery voltage
18
R/W
Rear door switch LH input signal
ON (Door is opened)
→
OFF (Door is closed)
0
→
Battery voltage
BL-108
REMOTE KEYLESS ENTRY SYSTEM
Revision; 2004 April
2003 Murano
CONSULT-II Function
AIS002FM
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 Inspection Procedure
AIS002FN
CAUTION:
If CONVERTER is not connected with CONSULT-II, vehicle occur the “FAIL-SAFE MODE” which is
“LIGHT UP THE HEADLAMP” and/or “COOLING FAN ROTATING” when CONSULT-II is started.
“MULTI REMOTE ENT”
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”.
If “BCM” is not indicated, go to
BCM diagnosis part
Inspection items and diagnosis mode
Description
BCM C/U*
SELF-DIAG RESULTS
Carries out the self-diagnosis.
DATA MONITOR
SELECTION FROM MENU
Displays the input data to BCM on real-time basis.
CAN DIAGNOSTIC SUPPORT MONITOR
The results of trensmit / receive diagnosis of CAN com-
munication can be read.
MULTI REMOTE ENT
DATA MONITOR
Displays the input remote keyless entry system data to
BCM on real–time basis.
ACTIVE TEST
Gives a drive to a load to check the operation.
WORK SUPPORT
Changes the setting for each function.
PIIA1095E
MBIB0233E
LIIA0033E
REMOTE KEYLESS ENTRY SYSTEM
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6.
Touch “MULTI REMOTE ENT”.
7.
Select diagnosis mode.
“DATA MONITOR”, “ACTIVE TEST” and “WORK SUPPORT”
are available.
CONSULT-II Application Items
AIS002FO
“MULTI REMOTE CONTENT”
Data Monitor
LIIA0194E
SEL274W
Monitored Item
Description
IGN ON SW
Indicates [ON/OFF] condition of ignition switch is in ON position.
ACC ON SW
Indicates [ON/OFF] condition of ignition switch is in ACC position.
KEY ON SW
Indicates [ON/OFF] condition of key switch.
DOOR SW-DR
Indicates [ON/OFF] condition of driver side door switch.
DOOR SW-AS
Indicates [ON/OFF] condition of passenger side door switch.
BACK DOOR SW
Indicates [ON/OFF] condition of back door switch.
LOCK SW DR/AS
Indicates [ON/OFF] condition of lock signal from door lock and unlock switch.
UNLK SW DR/AS
Indicates [ON/OFF] condition of unlock signal from door lock and unlock switch.
KEY CYL LK SW
Indicates [ON/OFF] condition of lock signal from door key cylinder switch.
LK BUTTON/SIG
Indicates [ON/OFF] condition of lock signal from key fob.
UN BUTTON/SIG
Indicates [ON/OFF] condition of unlock signal from key fob.
PANIC BTN
Indicates [ON/OFF] condition of panic alarm signal from key fob.
TRUNK BTN/SIG
This is displayed even when it is not equipped.
TRUNK OPN MNTR
This is displayed even when it is not equipped.
UN BUTTON ON
Indicates [ON/OFF] condition of unlock signal from key fob.
LK/UN BTN ON
Indicates [ON/OFF] condition of lock/unlock signal at the same time from key fob.
DOOR SW-RR
Indicates [ON/OFF] condition of rear door switches.
BL-110
REMOTE KEYLESS ENTRY SYSTEM
Revision; 2004 April
2003 Murano
Active Test
Work Support
Test Item
Description
INT LAMP
This test is able to check interior lamp operation. The interior lamp is turned on when “ON” on CON-
SULT-II screen is touched.
IGN ILLUM
This test is able to check ignition keyhole illumination operation. The ignition keyhole illumination is
turned on when “ON” on CONSULT-II screen is touched.
NOTE:
Remote keyless entry system does not control ignition keyhole illumination operation.
TRUNK/BACK DOOR
This is displayed even when it is not equipped.
HORN
This test is able to check panic alarm and horn reminder operations. The horn activate for 0.5 sec-
onds after “ON” on CONSULT-II screen is touched.
HEADLAMP (HI)
This test is able to check headlamps panic alarm operation. The headlamp illuminates for 0.5 sec-
onds after “ON” on CONSULT-II screen is touched.
POWER WINDOW DOWN
This test is able to check power window open operation. The front power windows activate for 10
seconds after “ON” or CONSULT-II screen is touched.
FLASHER RIGHT
This test is able to check right hazard reminder operation. The right hazard lamp turns on when
“ON” on CONSULT-II screen is touched.
FLASHER LEFT
This test is able to check left hazard reminder operation. The left hazard lamp turns on when “ON”
on CONSULT-II screen is touched.
FLASHER RIGHT (CAN)
This test is able to check hazard reminder operation. The right hazard indicator lamp turns on when
“ON” on CONSULT-II screen is touched.
FLASHER LEFT (CAN)
This test is able to check hazard reminder operation. The left hazard indicator lamp turns on when
“ON” on CONSULT-II screen is touched.
Test Item
Description
REMO CONT ID CONFIR
It can be checked whether key fob ID code is registered or not in this mode.
REMO CONT ID REGIST
Key fob ID code can be registered.
REMO CONT ID ERASUR
Key fob ID code can be erased.
MULTI ANSWER BACK SET
Hazard and horn reminder mode can be changed in this mode.
AUTO LOCK SET
Auto locking function mode can be changed in this mode.
PANIC ALRM SET
Panic alarm operation mode can be changed in this mode.
TRUNK OPEN SET
This is displayed even when it is not equipped.
PW DOWN SET
Keyless power window down (open) operation mode can be changed in this mode.
REMOTE KEYLESS ENTRY SYSTEM
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Hazard and horn reminder mode
Auto locking function mode
Panic alarm operation mode
Power window down operation mode
Work Flow
AIS002FP
1.
Check the trouble symptom and customer's requests.
2.
Understand outline of system. Refer to
3.
Confirm that power door lock system operates normally.
Refer to
BL-23, "POWER DOOR LOCK SYSTEM"
.
4.
Refer to trouble diagnosis chart by symptom, repair or replace any malfunctioning parts.
Refer to
BL-111, "Trouble Diagnosis Chart by Symptom"
5.
INSPECTION END
Trouble Diagnosis Chart by Symptom
AIS002FQ
NOTE:
●
Always check the “Work Flow” before troubleshooting. Refer to
●
Always check key fob battery before replacing key fob.
MODE 1
(C mode)
MODE 2
(S mode)
MODE 3
MODE 4
MODE 5
MODE 6
Key fob
operation
Lock
Unlock
Lock
Unlock
Lock
Unlock
Lock
Unlock
Lock
Unlock
Lock
Unlock
Hazard warning
lamp flash
Twice
Once
Twice
—
—
—
Twice
Once
Twice
—
—
Once
Horn sound
Once
—
—
—
—
—
—
—
Once
—
Once
—
MODE 1
MODE 2
MODE 3
Auto locking function
1 minutes
Nothing
5 minutes
MODE 1
MODE 2
MODE 3
Key fob operation
0.5 seconds
Nothing
1.5 seconds
MODE 1
MODE 2
MODE 3
Key fob operation
3 seconds
Nothing
5 seconds
Symptom
Diagnoses/service procedure
Reference
page
All function of remote keyless entry system do not
operate.
1. Check key fob battery.
2. Check key fob function.
3. Replace BCM.
The new ID code of key fob cannot be entered with-
out CONSULT-II.
1. Check key fob battery.
2. Check key switch.
3. Check door switch.
4. Check ACC power.
5. Replace BCM.
Door lock or unlock does not function with key fob.
(Power door lock system is “OK”.)
(Panic alarm activates properly with key fob.)
1. Check key fob function.
2. Replace BCM.
Hazard and horn reminder does not activate prop-
erly when pressing lock or unlock button of key fob.
1. Check hazard and horn reminder mode.*
*: Hazard and horn reminder mode can be changed.
First check the hazard and horn reminder setting.
2. Check door switch.
3. Replace BCM.
BL-112
REMOTE KEYLESS ENTRY SYSTEM
Revision; 2004 April
2003 Murano
Check Key Fob Battery
AIS002FR
1.
CHECK KEY FOB BATTERY
1.
Remove key fob battery. Refer to
BL-124, "Key Fob Battery Replacement"
2.
Check voltage between battery positive and negative terminals, (+) and (
−
).
NOTE:
Key fob does not function if battery is not set correctly.
OK or NG
OK
>> Key fob battery is OK.
NG
>> Replace key fob battery.
Hazard reminder does not activate properly when
pressing lock or unlock button of key fob.
(Horn reminder is “OK”.)
1. Check hazard reminder mode.*
*: Hazard reminder mode can be changed.
First check the hazard reminder setting.
2. Check hazard function.
3. Replace BCM.
Horn reminder does not activate properly when
pressing lock button of key fob.
(Hazard reminder is “OK”.)
1. Check horn reminder mode.*
*: Horn reminder mode can be changed.
First check the horn chirp setting.
2. Check horn function.
3. Check IPDM E/R operation.
4. Replace BCM.
Panic alarm (horn and headlamp) does not activate
when panic alarm button is continuously pressed.
(Door lock and unlock activates properly with key
fob.)
1. Check panic alarm mode.*
*: Panic alarm mode can be changed.
First check the panic alarm setting.
2. Check key fob function.
3. Check key switch.
4. Check headlamp function.
5. Check horn function.
6. Check IPDM E/R operation.
7. Replace BCM.
Auto door lock operation does not activate properly.
(All other remote keyless entry system function is
OK.)
1.Check auto door lock operation mode.*
*: Auto door lock operation mode can be changed.
First check the auto door lock operation setting.
2. Replace BCM.
Keyless power window down (open) operation does
not activate properly.
(All other remote keyless entry system function is
OK.)
1. Check power window down operation mode.*
*: Power window down operation mode can be changed.
First check the power window down setting.
2. Check power window function.
3. Replace BCM.
Map lamp and ignition keyhole illumination function
does not activate properly.
(All other remote keyless entry system function is
OK.)
1. Check room lamp and ignition keyhole illumination function.
2. Replace BCM.
Symptom
Diagnoses/service procedure
Reference
page
Voltage
: 2.5V - 3.0V
SEL237W
REMOTE KEYLESS ENTRY SYSTEM
BL-113
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Check Key Fob Function
AIS003Y6
1.
CHECK KEY FOB FUNCTION
With CONSULT-II
Check key fob function in “DATA MONITOR” mode with CONSULT-II.
When pushing each button of key fob, the corresponding monitor item should be turned as follows.
OK or NG
OK
>> Key fob is OK.
NG
>> Replace key fob and register key fob ID code. Refer to
BL-121, "ID Code Entry Procedure"
.
Check ACC Power
AIS002FS
1.
CHECK ACC POWER
With CONSULT-II
Check ACC power (“ACC ON SW”) in “DATA MONITOR” mode with CONSULT-II.
Without CONSULT-II
Check voltage between BCM connector and ground.
OK or NG
OK
>> ACC power supply circuit is OK.
NG
>> Check the following.
●
10A fuse [No. 6, located in fuse block (J/B)]
●
Harness for open or short between BCM and fuse.
Key fob switch condition
Monitor item
Pushing LOCK
LK BUTTON/SIG
: ON
Pushing UNLOCK
UN BUTTON/SIG
: ON
Keep pushing UNLOCK
UN BUTTON ON
: ON*
*: UN BUTTON ON turns to ON 3 seconds
after UNLOCK button keeps pushing.
Pushing PANIC
PANIC BTN
: ON
Pushing LOCK and UNLOCK at the
same time
LK/UN BTN ON
: ON
PIIA4975E
Monitor item
Condition
ACC ON SW
Ignition switch is in ACC position
ON
Ignition switch is in OFF position
OFF
PIIA3367E
Item
Terminals
(Wire color)
Condition
Voltage (V)
Approx.
(+)
(–)
Con-
nector
Terminal
(Wire
color)
BCM
M35
36 (P/B)
Ground
ACC
Battery voltage
OFF
0
PIIA3366E
BL-114
REMOTE KEYLESS ENTRY SYSTEM
Revision; 2004 April
2003 Murano
Check Door Switch
AIS003Y7
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
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