Nissan Murano Z50 (2003 year). Manual - part 227

LT-120

DAYTIME LIGHT SYSTEM

Revision; 2004 April

2003 Murano

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.

Driver 

seat 
con-

trol 

unit

AWD 

con-

trol 

unit

ABS 

actua-

tor 

and 

elec-

tric 

unit 

(con-

trol 

unit)

IPDM 

E/R

CVT position indicator signal

T

R

Second position signal 

R

T

Second position indicator signal

T

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

Closed throttle position signal

T

R 

Wide open throttle position signal

T

R 

Key switch signal

 

T

R

Ignition switch signal

 

T

R

R

P range signal

T 

R

Stop lamp switch signal

R

T

R

Fuel consumption monitor signal

T

R

CVT self-diagnosis signal

R

T

ABS operation signal

R

R

T

Air conditioner switch signal

R

T

A/C compressor request signal

T

R

A/C compressor feedback signal

T

R

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

Door switch signal

R

T

R

R

T

R

R

R

Key fob ID signal

T

R

Key fob door unlock signal

T

R

DAYTIME LIGHT SYSTEM

LT-121

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Turn indicator 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 lamp signal

T

R

ASCD SET lamp signal

T

R

ASCD CRUISE lamp signal

T

R

Input shaft revolution signal

R

T

Output shaft revolution signal

R

T

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

Engine and CVT integrated control 
signal

T

R

R

T

Hood switch signal

R

T

Theft warning horn request signal

T

R

Horn chirp signal

T

R

Tire pressure signal

T

R

Tire pressure data signal

T

R

R

ABS warning 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.

Driver 

seat 
con-

trol 

unit

AWD 

con-

trol 

unit

ABS 

actua-

tor 

and 

elec-

tric 

unit 

(con-

trol 

unit)

IPDM 

E/R

LT-122

DAYTIME LIGHT SYSTEM

Revision; 2004 April

2003 Murano

TYPE 25/TYPE26/TYPE 27/TYPE 28/TYPE 29/TYPE 30/TYPE 31/TYPE 32
System Diagram

●

Type25

●

Type26

●

Type27

SKIA4926E

SKIA4927E

SKIA4928E

DAYTIME LIGHT SYSTEM

LT-123

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●

Type28

●

Type29

●

Type30

SKIA4929E

SKIA4930E

SKIA4931E

LT-124

DAYTIME LIGHT SYSTEM

Revision; 2004 April

2003 Murano

●

Type31

●

Type32

SKIA4932E

SKIA4933E

DAYTIME LIGHT SYSTEM

LT-125

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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

LT-126

DAYTIME LIGHT SYSTEM

Revision; 2004 April

2003 Murano

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

DAYTIME LIGHT SYSTEM

LT-127

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Schematic

AKS007NI

TKWA0747E

LT-128

DAYTIME LIGHT SYSTEM

Revision; 2004 April

2003 Murano

Wiring Diagram — DTRL —

AKS007NJ

TKWA0748E

DAYTIME LIGHT SYSTEM

LT-129

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TKWA0749E

LT-130

DAYTIME LIGHT SYSTEM

Revision; 2004 April

2003 Murano

TKWA0750E

DAYTIME LIGHT SYSTEM

LT-131

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Terminals and Reference Value for BCM

AKS007NK

Terminals and Reference Values for IPDM E/R

AKS007NL

How to Proceed With Trouble Diagnosis

AKS007NM

1.

Confirm the symptom or customer complaint.

2.

Understand operation description and function description. Refer to 

LT-103, "System Description"

 .

3.

Perform the Preliminary Check. Refer to 

LT-132, "Preliminary Check"

 .

4.

Check symptom and repair or replace the cause of malfunction.

5.

Does the headlamp operate normally? If YES: GO TO 6. If NO: GO TO 4.

6.

INSPECTION END.

Terminal 

No.

Wire 

color

Signal name

Measuring condition

Reference value

Ignition 

switch

Operation or condition

7

W/B

Battery power supply

OFF

—

Battery voltage

8

B

Ground

ON

—

Approx.0

35

R

Ignition switch (ON) 

ON

—

Battery voltage

36

P/B

Ignition switch (ACC)

ACC

—

Battery voltage

40

R/B

Combination switch output 2

ON

Lighting, turn, wiper OFF

41

R/G

Combination switch output 3

42

P/L

Combination switch output 4

43

R

Combination switch output 5

47

R/W

Combination switch output 1

48

L/W

Combination switch input 1

ON

Lighting, turn, wiper OFF

4.5V or more

49

G/B

Combination switch input 2

50

LG/R

Combination switch input 3

51

G/Y

Combination switch input 4

52

LG/B

Combination switch input 5

70

L

CAN

−

 

H

—

—

—

71

Y

CAN

−

 

L

—

—

—

72

O

K

−

LINE

—

—

—

SKIA1119J

Terminal 

No.

Wire 

color

Signal 

name

Measuring condition

Reference value

Ignition 

switch

Operation or condition

14 B

Ground

ON

—

Approx. 

0V

29

W/R

Front fog 
lamp 
(RH) 

ON

Lighting switch must be in the 2ND position 
or AUTO position (LOW beam is ON) and 
the front fog lamp switch must be ON

OFF

Approx. 0V

ON

Battery voltage

32

W/R

Front fog 
lamp 
(LH)

ON

Lighting switch must be in the 2ND position  
or AUTO position (LOW beam is ON) and 
the front fog lamp switch must be ON

OFF

Approx. 0V

ON

Battery voltage

45

B

Ground

ON

—

Approx. 0V

48

L

CAN

−

 

H

—

—

—

49

Y

CAN

−

 

L

—

—

—

LT-132

DAYTIME LIGHT SYSTEM

Revision; 2004 April

2003 Murano

Preliminary Check

AKS007NN

INSPECTION FOR POWER SUPPLY AND GROUND CIRCUIT

1. 

CHECK FUSES

●

Check for blown fuses.

Refer to 

LT-128, "Wiring Diagram — DTRL —"

 .

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 

PG-

3, "POWER SUPPLY ROUTING CIRCUIT"

 .

2. 

CHECK POWER SUPPLY CIRCUIT

1.

Disconnect BCM connector.

2.

Check voltage between BCM connector and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Check harness for open or short between BCM and fuse.

3. 

CHECK GROUND CIRCUIT

Check continuity between BCM and ground.

OK or NG

OK

>> INSPECTION END

NG

>> Check harness ground circuit.

Unit

Power source

Fuse and fusible link No.

BCM

Battery

F

Ignition switch ON or START position

1

Ignition switch ACC or ON position

6

IPDM E/R

Battery

72

Terminals

Ignition switch position

(+)

(-)

OFF

ACC

ON

Connector

Terminal 

(Wire color)

E118

7 (W/B)

Ground

Battery 
voltage

Battery 
voltage

Battery 
voltage

M35

35 (R)

0V

0V

Battery 
voltage

M35

36 (P/B)

0V

Battery 
voltage

Battery 
voltage

SKIA3192E

Terminals

Continuity

Connector

Terminal (Wire color)

Ground

Yes

E118

8 (B)

SKIA3193E

DAYTIME LIGHT SYSTEM

LT-133

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INSPECTION PARKING BRAKE SWITCH CIRCUIT

1. 

CHECK BRAKE INDICATOR

1.

Turn ignition switch ON

2.

When an parking brake is made ON/OFF, it checks whether the brake indicator lamp of combination meter
lights up / puts out the light.

OK or NG

OK

>> INSPECTION END

NG

>> GO TO 2.

2. 

CHECK PARKING BRAKE SWITCH CIRCUIT

1.

Disconnect parking brake switch connector and combination
meter connector.

2.

Check continuity between combination meter harness connector
M25 terminal 1 (G) and parking brake switch harness connector
E112 terminal 1 (G).

OK or NG

OK

>> GO TO 3.

NG

>> Repair harness or connector.

3. 

CHECK PARKING BRAKE SWITCH SIGNAL

1.

Connect combination meter connector and parking brake switch
connector.

2.

Turn ignition switch ON.

3.

Check voltage between parking brake switch harness connector
and ground, when parking brake is released.

OK or NG

OK

>> INSPECTION END

NG

>> Replace parking brake switch.

Continuity should exist.

SKIA4569E

Terminals

Condition

Voltage

(+) 

(-)

Connector

Terminal 

(Wire color)

E112 1 

(G)

Ground

Not released

Approx. 0V

Released

Battery voltage

SKIA3117E

LT-134

DAYTIME LIGHT SYSTEM

Revision; 2004 April

2003 Murano

CONSULT-II Function

AKS007NO

CONSULT-II performs the following functions communicating with BCM.

CONSULT-II BASIC OPERATION

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.

With ignition switch OFF, connect CONSULT-II and CONSULT-II
CONVERTER to data link connector, then turn ignition switch
ON.

2.

Touch “START (NISSAN BASED VHCL)”.

3.

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

GI-38, "CONSULT-II Data Link

Connector (DLC) Circuit"

 .

BCM diagnosis 

part

Check item, diagnosis mode

Description

HEAD LAMP

WORK SUPPORT

Changes the setting for each function.

DATA MONITOR

Displays BCM input data in real time.

ACTIVE TEST

Operation of electrical loads can be checked by sending drive signal to them.

BCM C/U

CAN DIAG SUPPORT MNTR

The result of transmit/receive diagnosis of CAN communication can be read.

PBIB1300E

SKIA3098E

SKIA6338E

DAYTIME LIGHT SYSTEM

LT-135

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4.

Touch “HEAD LAMP” on “SELECT TEST ITEM” screen.

WORK SUPPORT
Operation Procedure

1.

Touch “HEAD LAMP” on “SELECT TEST ITEM” screen.

2.

Touch “WORK SUPPORT” on “SELECT DIAG MODE” screen.

3.

Touch “BATTERY SAVER SET” on “SELECT WORK ITEM” screen.

4.

Touch “START”.

5.

Touch “CHANGE SETT”.

6.

The setting will be changed and “CUSTOMIZING COMPLETED” will be displayed.

7.

Touch “END”.

Display Item List

DATA MONITOR
Operation Procedure

1.

Touch “HEAD LAMP” on “SELECT TEST ITEM” screen.

2.

Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.

3.

Touch either “ALL SIGNALS” or “SELECTION FROM MENU” on “DATA MONITOR” screen.

4.

Touch “START”.

5.

When "SELECTION FROM MENU” is selected, touch individual items to be monitored. When “ALL SIG-
NALS” is selected, all the items will be monitored.

6.

Touch “RECORD” while monitoring, then the status of the monitored item can be recorded. To stop
recording, touch “STOP”.

Display Item List

SKIA1922E

Item

Description

CONSULT-II

Factory setting

BATTERY SAVER SET

Exterior lamp battery saver control mode can be changed 
in this mode. Selects exterior lamp battery saver control 
mode between two ON/OFF.

ON

×

OFF

—

All signals

Monitors all the signals.

Selection from menu

Selects and monitors individual signal.

Monitor item

Contents

IGN ON SW

“ON/OFF”

Displays “IGN position (ON)/OFF, ACC position (OFF)” judged from the ignition switch sig-
nal.

ACC ON SW

“ON/OFF”

Displays “ACC (ON)/OFF, Ignition OFF (OFF)” status judged from ignition switch signal.

AUTO LIGHT SW

Note 

“ON/OFF”

Displays status of the lighting switch as judged from the lighting switch signal. (AUTO posi-
tion: ON/Other than AUTO position: OFF)

TAIL LAMP SW

“ON/OFF”

Displays status (lighting switch 1st position: ON/Others: OFF) of lighting switch judged 
from lighting switch signal.

HEAD LAMP SW 1

“ON/OFF”

Displays status (headlamp switch 1: ON/Others: OFF) of headlamp 1 switch judged from 
lighting switch signal.