Nissan Murano Z50 (2003 year). Manual - part 240

LT-328

INTERIOR ROOM LAMP

Revision; 2004 April

2003 Murano

3. 

ACTIVE TEST

1.

Select “BCM” on CONSULT-II. Select “INT LAMP”.

2.

Select “IGN ILLUM” active test to make sure lamp operates.

OK or NG

OK

>> Replace BCM.Refer to 

BCS-36, "Removal and Installa-

tion of BCM"

 .

NG

>> GO TO 4.

4. 

CHECK IGNITION KEY HOLE ILLUMINATION INPUT

1.

Turn ignition switch OFF.

2.

Check voltage between ignition key hole illumination harness
connector M40 terminal 1 (P) and ground.

OK or NG

OK

>> GO TO 5.

NG

>> GO TO 6.

5. 

CHECK IGNITION KEY HOLE ILLUMINATION CIRCUIT

1.

Disconnect BCM connector and key hole illumination connector.

2.

Check continuity between BCM harness connector M35 terminal
34 (R/Y) and key hole illumination harness connector M40 termi-
nal 2 (R/Y). 

OK or NG

OK

>> Replace BCM. Refer to 

BCS-36, "Removal and Installa-

tion of BCM"

 .

NG

>> Repair harness or connector.

6. 

CHECK IGNITION KEY HOLE ILLUMINATION CIRCUIT

1.

Disconnect BCM connector and key hole illumination connector.

2.

Check continuity between BCM harness connector M35 terminal
24 (P) and key hole illumination harness connector M40 terminal
1 (P). 

OK or NG

OK

>> Replace BCM. Refer to 

BCS-36, "Removal and Installa-

tion of BCM"

 .

NG

>> Repair harness or connector.

SKIA3992E

Battery voltage should exist.

SKIA4563E

Continuity should exist.

SKIA4564E

Continuity should exist.

SKIA4565E

INTERIOR ROOM LAMP

LT-329

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Step Lamp Does Not Operate

AKS004MC

1. 

CHECK EACH DOOR SWITCH

Select “BCM” on CONSULT-II. With “INT LAMP” data monitor to
make sure switches listed below turn ON-OFF linked with switch
operation.

OK or NG

OK

>> GO TO 2.

NG

>> Inspect malfunctioning switch system.

2. 

CHECK STEP LAMP INPUT

1.

Turn ignition switch OFF.

2.

Check voltage between step lamp harness connector (driver
side/passenger side) and ground.

OK or NG

OK

>> GO TO 3.

NG

>> GO TO 4.

3. 

CHECK STEP LAMP CIRCUIT

1.

Disconnect BCM connector and step lamp (driver side/passen-
ger side) connectors.

2.

Check continuity between BCM harness connector M35 terminal
33 (R/W) and step lamp (driver side) harness connector D9 ter-
minal 2 (R/W).  

3.

Check continuity between BCM harness connector M35 terminal
33 (R/W) and step lamp (passenger side) harness connector
D37 terminal 2 (R/W). 

OK or NG

OK

>> Replace BCM. Refer to 

BCS-36, "Removal and Installation of BCM"

 .

NG

>> Repair harness or connector.

Switch name

CONSULT screen

Driver side door switch

DOOR SW - DR

Passenger side door switch

DOOR SW - AS

SKIA3991E

Terminals

Voltage

(+)

(-)

Connector

Terminal 

(Wire color)

Driver side

D9

1 (P)

Ground

Battery voltage

Passenger side

D37

SKIA4566E

Continuity should exist.

Continuity should exist.

SKIA4567E

LT-330

INTERIOR ROOM LAMP

Revision; 2004 April

2003 Murano

4. 

CHECK STEP LAMP CIRCUIT

1.

Disconnect BCM connector and step lamp connector.

2.

Check continuity between BCM harness connector M35 terminal
24 (P) and step lamp (driver side) harness connector D9 termi-
nal 1 (P).  

3.

Check continuity between BCM harness connector M35 terminal
24 (P) and step lamp (passenger side) harness connector D37
terminal 1 (P). 

OK or NG

OK

>> Replace BCM. Refer to 

BCS-36, "Removal and Installation of BCM"

 .

NG

>> Repair harness or connector.

All Interior Room Lamp Does Not Operate

AKS004MD

1. 

CHECK POWER SUPPLY CIRCUIT

1.

All interior room lamps switch are OFF.

2.

Turn ignition switch ON.

3.

Check voltage between BCM harness connector M35 terminal
24 (P) and ground.

OK or NG

OK

>> Repair harness or connector. In a case of making a

short circuit, be sure to disconnect battery negative
cable after repairing harness, and then reconnect

NG

>> Replace BCM. Refer to 

BCS-36, "Removal and Installa-

tion of BCM"

 .

Bulb Replacement

AKS005M9

ROOM LAMP

1.

Disconnect the battery negative cable.

2.

Remove the lens using clip driver or suitable tool.

3.

Remove the bulb.

4.

Install in the reverse order of removal.

MAP LAMP

Refer to 

LT-306, "Bulb Replacement"

  in “MAP LAMP”.

PERSONAL LAMP

Refer to 

LT-307, "Bulb Replacement, Removal and Installation"

  in “PERSONAL LAMP”.

STEP LAMP

Refer to 

LT-267, "Bulb Replacement"

  in “STEP LAMP”.

LUGGAGE ROOM LAMP

Refer to 

LT-308, "Bulb Replacement, Removal and Installation"

  in “LUGGAGE ROOM LAMP”.

Continuity should exist.

Continuity should exist.

SKIA4568E

Battery voltage should exist.

SKIA6207E

Room lamp

:12V - 8W

PKIA2535E

INTERIOR ROOM LAMP

LT-331

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Removal and Installation

AKS005MA

ROOM LAMP

1.

Remove the lens using clip driver or suitable tool.

2.

Using a clip driver or suitable tool and disengage the metal clip
fittings of the room lamp.

3.

Disconnect room lamp connector and remove the room lamp.

MAP LAMP

Refer to 

LT-306, "Removal and Installation"

   in “MAP LAMP”.

PERSONAL LAMP

Refer to 

LT-307, "Bulb Replacement, Removal and Installation"

  in “PERSONAL LAMP”.

STEP LAMP

Refer to 

LT-267, "Removal and Installation"

  in “STEP LAMP”

LUGGAGE ROOM LAMP

Refer to 

LT-308, "Bulb Replacement, Removal and Installation"

  in “LUGGAGE ROOM LAMP”.

IGNITION KEY HOLE ILLUMINATION

1.

Remove the ignition key finisher. Refer to 

IP-11, "Removal and

Installation"

  in “INSTRUMENT PANEL (IP)” section.

2.

Turn the bulb socket counterclockwise and unlock it.

PKIA2539E

Ignition key hole illumination

: 12V - 1.4W

PKIA2542E

LT-332

ILLUMINATION

Revision; 2004 April

2003 Murano

ILLUMINATION

PFP:27545

System Description

AKS004MG

Control of the illumination lamps operation is dependent upon the position of the lighting switch (combination
switch). When the lighting switch is placed in the 1ST or 2ND position (or if the auto light system is activated)
the BCM (body control module) receives input signal requesting the illumination lamps to illuminate. This input
signal is communicated to the IPDM E/R (intelligent power distribution module engine room) across the CAN
communication lines. The CPU (central processing unit) of the IPDM E/R (intelligent power distribution module
engine room) controls the tail lamp relay coil. This relay, when energized, directs power to the illumination
lamps, which then illuminate. 
Power is supplied at all times

●

through 10A fuse [No. 75, located in IPDM E/R (intelligent power distribution module engine room)]

●

to tail lamp relay [located in IPDM E/R (intelligent power distribution module engine room)]

Power is also supplied at all times

●

through 50A fusible link (letter F, located in fuse and fusible link block)

●

to BCM (body control module) terminal 7

●

through 15A fuse [No. 73, located in IPDM E/R (intelligent power distribution module engine room)]

●

to CPU (central processing unit) [located in IPDM E/R (intelligent power distribution module engine room)]

●

through 10A fuse [No. 21, located in fuse block (J/B)]

●

to combination meter terminal 21.

With the ignition switch in the ON or START position, power is supplied

●

through 10A fuse [No. 1, located in fuse block (J/B)]

●

to BCM (body control module) terminal 35

●

through 10A fuse [No. 80, located in IPDM E/R (intelligent power distribution module engine room)]

●

to CPU (central processing unit) [located in IPDM E/R (intelligent power distribution module engine room)]

●

through 10A fuse [No. 14, located in fuse block (J/B)]

●

to combination meter terminal 20.

With the ignition switch in the ACC or ON position, power is supplied

●

through 10A fuse [No. 6, located in fuse block (J/B)]

●

to BCM (body control module) terminal 36.

Ground is supplied

●

to BCM (body control module) terminal 8

●

through grounds E13, E26 and E28

●

to IPDM E/R (intelligent power distribution module engine room) terminals 14 and 45 

●

through grounds E13, E26 and E28

●

to combination meter terminals 22, 23 and 24

●

through grounds M14 and M78.

ILLUMINATION OPERATION BY LIGHTING SWITCH

With the lighting switch in the 1ST or 2ND position (or if the auto light system is activated), the BCM receives
input signal requesting the illumination lamps to illuminate. This input signal is communicated to the IPDM E/R
across the CAN communication lines. The CPU of the IPDM E/R controls the tail lamp relay coil, which, when
energized, directs power

●

through IPDM E/R terminal 37

●

to CVT illumination terminal 1

●

to VDC off switch (illumination) terminal 3 (with VDC)

●

to headlamp aiming switch (illumination) terminal 3 (with headlamp aiming)

●

to AWD lock switch (illumination) terminal 4 (AWD models)

●

to heated seat switch (driver side) (illumination) terminal 5 (with heater seat) 

●

to heated seat switch (passenger side) (illumination) terminal 5 (with heater seat)

●

to A/C and AV switch terminal 3

●

to coin box illumination terminal 1 

ILLUMINATION

LT-333

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to glove box lamp terminal 1

●

to rear power window switch LH (illumination) terminal 6

●

to rear power window switch RH (illumination) terminal 6.

Illumination control

●

through combination meter terminal 15

●

to CVT illumination terminal 2

●

to VDC off switch (illumination) terminal 4 (with VDC)

●

to headlamp aiming switch (illumination) terminal 4 (with headlamp aiming)

●

to AWD lock switch (illumination) terminal 2 (AWD models)

●

to heated seat switch (driver side) (illumination) terminal 6 (with heater seat) 

●

to heated seat switch (passenger side) (illumination) terminal 6 (with heater seat)

●

to A/C and AV switch terminal 4.

Ground is supplied at all times

●

to coin box illumination terminal 2

●

to glove box lamp terminal 2

●

through grounds M14 and M78

●

to rear power window switch LH (illumination) terminal 7

●

through grounds B7 and B20

●

to rear power window switch RH (illumination) terminal 7

●

through grounds B105 and B116.

With power and ground supplied, illumination lamps illuminate.

EXTERIOR LAMP BATTERY SAVER CONTROL

When the combination switch (lighting switch) is in the 1ST or 2ND position (or if auto light system is acti-
vated), and the ignition switch is turned from ON or ACC to OFF, the battery saver control function is activated.
Under this condition, the illumination lamps remain illuminated for 5 minutes, then the illumination lamps are
turned off.
When the lighting switch is turned from OFF to 1ST or 2ND position (or if auto light system is activated) after
illumination lamps are turned off by the battery saver control, and illumination lamps illuminate again.
Exterior lamp battery saver control mode can be changed by the function setting of CONSULT-II.

LT-334

ILLUMINATION

Revision; 2004 April

2003 Murano

CAN Communication System Description

AKS004MH

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 For 2WD Models

AKS007QZ

×

: Applicable

Body type

Wagon

Axle

2WD

Engine

VQ35DE

Transmission

CVT

Brake control

ABS

VDC

Low tire pressure warning 
system

×

×

×

×

×

×

×

×

Navigation system

×

×

×

×

×

×

×

×

Automatic drive positioner

×

×

×

×

×

×

×

×

CAN communication unit

ECM

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

TCM

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

Low tire pressure warning 
control unit

×

×

×

×

×

×

×

×

Display unit

×

×

×

×

×

×

×

×

Display control unit

×

×

×

×

×

×

×

×

Data link connector

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

BCM

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

Unified meter and A/C amp.

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

Steering angle sensor

×

×

×

×

×

×

×

×

Driver seat control unit

×

×

×

×

×

×

×

×

ABS actuator and electric 
unit (control unit)

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

IPDM E/R

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

CAN communication type

LT-335, "TYPE 1/TYPE 2/TYPE 3/TYPE 4/TYPE 

5/TYPE 6/TYPE 7/TYPE 8"

LT-340, "TYPE 9/TYPE10/TYPE 11/TYPE 12/

TYPE 13/TYPE 14/TYPE 15/TYPE 16"

ILLUMINATION

LT-335

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TYPE 1/TYPE 2/TYPE 3/TYPE 4/TYPE 5/TYPE 6/TYPE 7/TYPE 8
System Diagram

●

Type1

●

Type2

●

Type3

SKIA4902E

SKIA4903E

SKIA4904E

LT-336

ILLUMINATION

Revision; 2004 April

2003 Murano

●

Type4

●

Type5

●

Type6

SKIA4905E

SKIA4906E

SKIA4907E

ILLUMINATION

LT-337

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Type7

●

Type8

SKIA4908E

SKIA4909E

LT-338

ILLUMINATION

Revision; 2004 April

2003 Murano

Input/output Signal Chart

T: Transmit   R: Receive

Signals

ECM

TCM

Low 

tire 

pres-

sure 

warn-

ing 

control 

unit

Dis-
play 

unit

Dis-
play 

control 

unit

BCM

Uni-

fied 

meter 

and A/

C amp.

Driver 

seat 

control 

unit

ABS 

actua-

tor and 

elec-

tric unit 

(con-

trol 

unit)

IPDM 

E/R

Engine speed signal

T

R

R

R

R

Engine status signal

T

R

Engine coolant temperature signal

T

R

CVT position indicator signal

T

R

Second position signal 

R

T

Second position indicator signal

T

R

Engine and CVT integrated control 
signal

T

R

R

T

Accelerator pedal position signal 

T

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

Fuel consumption monitor signal

T

R

CVT self-diagnosis signal

R

T

ABS operation signal

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

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

Turn indicator signal

T

R

ILLUMINATION

LT-339

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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 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

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

Parking brake switch signal

R

T

Signals

ECM

TCM

Low 

tire 

pres-

sure 

warn-

ing 

control 

unit

Dis-
play 

unit

Dis-
play 

control 

unit

BCM

Uni-

fied 

meter 

and A/

C amp.

Driver 

seat 

control 

unit

ABS 

actua-

tor and 

elec-

tric unit 

(con-

trol 

unit)

IPDM 

E/R

LT-340

ILLUMINATION

Revision; 2004 April

2003 Murano

TYPE 9/TYPE10/TYPE 11/TYPE 12/TYPE 13/TYPE 14/TYPE 15/TYPE 16
System Diagram

●

Type9

●

Type10

●

Type11

SKIA4910E

SKIA4911E

SKIA4912E

ILLUMINATION

LT-341

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Type12

●

Type13

●

Type14

SKIA4913E

SKIA4914E

SKIA4915E

LT-342

ILLUMINATION

Revision; 2004 April

2003 Murano

●

Type15

●

Type16

SKIA4916E

SKIA4917E

ILLUMINATION

LT-343

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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

Driver 

seat 
con-

trol 

unit

ABS 

actua-

tor 

and 

elec-

tric 

unit 

(con-

trol 

unit)

IPDM 

E/R

Engine speed signal

T

R

R

R

R

R

Engine status signal

T

R

Engine coolant temperature signal

T

R

Engine and CVT integrated control 
signal

T

R

R

T

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

R

Stop lamp switch signal

R

T

VDC operation signal

R

T

Second position indicator signal

T

R

R

Second position signal 

R

T

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

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

T

R

R

R

R

T

R

Sleep request 1 signal

T

R

Sleep request 2 signal

T

R