Nissan Murano Z50 (2003 year). Manual - part 28

BCM (BODY CONTROL MODULE)

BCS-7

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BCS

Revision; 2004 April

2003 Murano

MAJOR COMPONENTS AND CONTROL SYSTEM

System

Input

Output

Remote keyless entry system

key fob

●

All-door locking actuator

●

Back door lock actuator

●

Turn signal lamp (LH, RH)

Power door lock system

●

Power window main switch (door lock 
and unlock switch)

●

Power window sub switch (passenger 
side) (door lock and unlock switch)

All-door locking actuator

Power supply (IGN) to power window, sunroof

Ignition power supply

Power supply to power window and sun-
roof system

Power supply (BAT) to power window, sunroof 
and power seat

Battery power supply

Power supply to power window, sunroof 
system and power seat

Panic alarm

●

Key switch

●

Remote controller

IPDM E/R

Theft warning system

●

All-door locking actuator

●

Back door lock actuator

IPDM E/R

Auto light system

●

Optical sensor

●

Combination switch

IPDM E/R

Battery saver control

Ignition switch
Combination switch

IPDM E/R

Headlamp

Combination switch

IPDM E/R

Day time light system

●

Engine speed signal

●

Ignition switch

●

Combination switch

IPDM E/R

Tail lamp

Combination switch

IPDM E/R

Fog lamp

Combination switch

IPDM E/R

Turn signal lamp

Combination switch

●

Turn signal lamp

●

Combination meter

Hazard lamp

Hazard switch

●

Turn signal lamp

●

Combination meter

Room lamp timer

●

Key switch

●

key fob

●

Power window main switch (door lock 
and unlock switch)

●

Front door switch driver side

●

All-door switch

Interior room lamp

Key warning chime

●

Key switch

●

Front door switch driver side

Combination meter (warning buzzer)

Light warning chime

●

Combination switch

●

Key switch

●

Front door switch driver side

Combination meter (warning buzzer)

Seat belt warning chime

Combination meter
[Seat belt buckle (driver side) switch]

Combination meter (warning buzzer)

Vehicle-speed-sensing intermittent wiper

●

Combination switch

●

Combination meter

IPDM E/R

Rear window defogger

Rear window defogger switch

IPDM E/R

Air conditioner switch signal

Unified meter and A/C amp.

ECM

Blower fan switch signal

Unified meter and A/C amp.

ECM

BCS-8

BCM (BODY CONTROL MODULE)

Revision; 2004 April

2003 Murano

CAN Communication System Description

AKS004CE

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. Modern
vehicles are equipped with many electronic control units and each control unit shares information and links
with other control units during operation (not independent). In CAN communication, control units are con-
nected 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

AKS007PS

Go to CAN system, when selecting your car model from the following table. 

×

: 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

BCS-9, "TYPE 1/TYPE 2/TYPE 3/TYPE 4/TYPE 

5/TYPE 6/TYPE 7/TYPE 8"

BCS-14, "TYPE 9/TYPE10/TYPE 11/TYPE 12/

TYPE 13/TYPE 14/TYPE 15/TYPE 16"

BCM (BODY CONTROL MODULE)

BCS-9

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BCS

Revision; 2004 April

2003 Murano

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

●

Type1

●

Type2

●

Type3

SKIA4902E

SKIA4903E

SKIA4904E

BCS-10

BCM (BODY CONTROL MODULE)

Revision; 2004 April

2003 Murano

●

Type4

●

Type5

●

Type6

SKIA4905E

SKIA4906E

SKIA4907E

BCM (BODY CONTROL MODULE)

BCS-11

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BCS

Revision; 2004 April

2003 Murano

●

Type7

●

Type8

SKIA4908E

SKIA4909E

BCS-12

BCM (BODY CONTROL MODULE)

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

BCM (BODY CONTROL MODULE)

BCS-13

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BCS

Revision; 2004 April

2003 Murano

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

BCS-14

BCM (BODY CONTROL MODULE)

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

BCM (BODY CONTROL MODULE)

BCS-15

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BCS

Revision; 2004 April

2003 Murano

●

Type12

●

Type13

●

Type14

SKIA4913E

SKIA4914E

SKIA4915E

BCS-16

BCM (BODY CONTROL MODULE)

Revision; 2004 April

2003 Murano

●

Type15

●

Type16

SKIA4916E

SKIA4917E

BCM (BODY CONTROL MODULE)

BCS-17

C

D

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F

G

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A

B

BCS

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.

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

BCS-18

BCM (BODY CONTROL MODULE)

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

Parking brake switch signal

R

T

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

BCM (BODY CONTROL MODULE)

BCS-19

C

D

E

F

G

H

I

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L

M

A

B

BCS

Revision; 2004 April

2003 Murano

CAN Communication Unit For AWD Models

AKS007PT

Go to CAN system, when selecting your car model from the following table. 

×

: Applicable

TYPE 17/TYPE 18/TYPE 19/TYPE 20/TYPE 21/TYPE 22/TYPE 23/TYPE 24
System Diagram

●

Type17

Body type

Wagon

Axle

AWD

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

×

×

×

×

×

×

×

×

AWD control unit

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

ABS actuator and electric 
unit (control unit)

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

IPDM E/R

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

×

CAN communication type

BCS-19, "TYPE 17/TYPE 18/TYPE 19/TYPE 20/

TYPE 21/TYPE 22/TYPE 23/TYPE 24"

BCS-25, "TYPE 25/TYPE26/TYPE 27/TYPE 28/

TYPE 29/TYPE 30/TYPE 31/TYPE 32"

SKIA4918E

BCS-20

BCM (BODY CONTROL MODULE)

Revision; 2004 April

2003 Murano

●

Type18

●

Type19

●

Type20

SKIA4919E

SKIA4920E

SKIA4921E

BCM (BODY CONTROL MODULE)

BCS-21

C

D

E

F

G

H

I

J

L

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A

B

BCS

Revision; 2004 April

2003 Murano

●

Type21

●

Type22

●

Type23

SKIA4922E

SKIA4923E

SKIA4924E

BCS-22

BCM (BODY CONTROL MODULE)

Revision; 2004 April

2003 Murano

●

Type24

SKIA4925E