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

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Schematic

AIS002FI

TIWA0272E

REMOTE KEYLESS ENTRY SYSTEM

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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

2003 Murano

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

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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

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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 

GI-38, "CONSULT-II Data Link

Connector (DLC) Circuit"

 .

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 

BL-77, "System Description"

 .

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 

BL-111, "Work Flow"

 .

●

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.

BL-112

2. Check key fob function.

BL-113

3. Replace BCM.

BCS-36

The new ID code of key fob cannot be entered with-
out CONSULT-II.

1. Check key fob battery.

BL-112

2. Check key switch.

BL-118

3. Check door switch.

BL-114

4. Check ACC power.

BL-113

5. Replace BCM.

BCS-36

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.

BL-113

2. Replace BCM.

BCS-36

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.

BL-110

2. Check door switch.

BL-114

3. Replace BCM.

BCS-36

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.

BL-110

2. Check hazard function.

BL-120

3. Replace BCM.

BCS-36

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.

BL-110

2. Check horn function.

BL-120

3. Check IPDM E/R operation.

BL-119

4. Replace BCM.

BCS-36

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.

BL-110

2. Check key fob function.

BL-113

3. Check key switch.

BL-118

4. Check headlamp function.

BL-120

5. Check horn function.

BL-120

6. Check IPDM E/R operation.

BL-119

7. Replace BCM.

BCS-36

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.

BL-110

2. Replace BCM.

BCS-36

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.

BL-110

2. Check power window function.

GW-18

3. Replace BCM.

BCS-36

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.

BL-120

2. Replace BCM.

BCS-36

Symptom

Diagnoses/service procedure

Reference 

page

Voltage

: 2.5V - 3.0V

SEL237W

REMOTE KEYLESS ENTRY SYSTEM

BL-113

C

D

E

F

G

H

J

K

L

M

A

B

BL

Revision; 2004 April

2003 Murano

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