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Nissan Murano Z50 (2003 year). Manual - part 151

LAN-30

[CAN]

CAN COMMUNICATION

Revision; 2004 April

2003 Murano

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Type28

●

Type29

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Type30

SKIA4929E

SKIA4930E

SKIA4931E

CAN COMMUNICATION

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LAN

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2003 Murano

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Type31

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Type32

SKIA4932E

SKIA4933E

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CAN COMMUNICATION

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

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

Second position signal

VDC operation signal

Stop lamp switch signal

Key switch signal

Ignition switch signal

P range signal

Closed throttle position signal

Wide open throttle position signal

Second position indicator signal

Engine speed signal

Engine status signal

Engine coolant temperature signal

Accelerator pedal position signal

Fuel consumption monitor signal

CVT self-diagnosis signal

Input shaft revolution signal

Output shaft revolution signal

Air conditioner switch signal

A/C compressor request signal

A/C compressor feedback signal

Blower fan motor switch signal

A/C control signal

Cooling fan speed request signal

Position lights request signal

Low beam request signal

Low beam status signal

High beam request signal

High beam status signal

Front fog lights request signal

Vehicle speed signal

Sleep request 1 signal

Sleep request 2 signal

CAN COMMUNICATION

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Door switch signal

Turn indicator signal

Key fob ID signal

Key fob door unlock signal

Seat belt buckle switch signal

Oil pressure switch signal

Buzzer output signal

Fuel level sensor signal

Fuel level low warning signal

Malfunction indicator signal

ASCD SET lamp signal

ASCD CRUISE lamp signal

Front wiper request signal

Front wiper stop position signal

Rear window defogger switch signal

Rear window defogger control signal

Hood switch signal

Theft warning horn request signal

Horn chirp signal

Steering angle sensor signal

Tire pressure signal

Tire pressure data signal

CVT position indicator signal

ABS warning lamp signal

VDC OFF indicator lamp signal

SLIP indicator lamp signal

Brake warning lamp signal

System setting signal

AWD warning lamp signal

AWD lock indicator lamp signal

AWD lock switch signal

Parking brake switch signal

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

LAN-34

[CAN]

CAN SYSTEM (TYPE 1)

Revision; 2004 April

2003 Murano

CAN SYSTEM (TYPE 1)

PFP:23710

System Description

AKS0068S

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.

Component Parts and Harness Connector Location

AKS0068T

SKIA5871E

CAN SYSTEM (TYPE 1)

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Schematic

AKS0069A

TKWA0789E

LAN-36

[CAN]

CAN SYSTEM (TYPE 1)

Revision; 2004 April

2003 Murano

Wiring Diagram - CAN -

AKS0068U

TKWA0790E

CAN SYSTEM (TYPE 1)

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[CAN]

LAN

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2003 Murano

TKWA0791E

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[CAN]

CAN SYSTEM (TYPE 1)

Revision; 2004 April

2003 Murano

TKWA0792E

CAN SYSTEM (TYPE 1)

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LAN

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Work Flow

AKS00C4T

When there are no indications of “TRANSMISSION” or “METER A/C AMP” on “SELECT SYSTEM” dis-
play of CONSULT-II, print the “SELECT SYSTEM”.

Print all the data of “SELF-DIAG RESULTS” for “ENGINE”, “TRANSMISSION”, “BCM”, “METER A/C
AMP” and “ABS” displayed on CONSULT-II.

Print all the data of “CAN DIAG SUPPORT MNTR” for “ENGINE”, “TRANSMISSION”, “BCM”, “METER A/
C AMP” and “ABS” displayed on CONSULT-II.

Attach the printed sheet of “SELECT SYSTEM”, “SELF-DIAG RESULTS” and “CAN DIAG SUPPORT
MNTR” onto the check sheet. Refer to

LAN-41, "CHECK SHEET"

Based on the indications of “SELECT SYSTEM” and the results of “CAN DIAG SUPPORT MNTR”, put
marks “v” onto the items with “No indication”, “NG”, or “UNKWN” in the check sheet table. Refer to

LAN-

41, "CHECK SHEET"

NOTE:

●

If “NG” is displayed on “INITIAL DIAG (Initial diagnosis)” as “CAN DIAG SUPPORT MNTR” for the diag-
nosed control unit, replace the control unit.

●

The “CAN DIAG SUPPORT MNTR” items, which are not in check sheet table, are not related to diag-
nostic procedure on service manual.
So it is not necessary to check the status of “CAN DIAG SUPPORT MNTR” items which are not indi-
cated in check sheet table.

Check CAN communication line of the integrated display system. Refer to

AV-110, "CAN Communication

Line Check"

Attach the CAN DIAG MONITOR check sheet onto the check sheet. Refer to

LAN-41, "CHECK SHEET"

Mark the “NG” or “UNKWN” item of the check sheet table with “v” from the result of CAN DIAG MONITOR
check sheet. Refer to

LAN-41, "CHECK SHEET"

PKIA2093E

PKIA8260E

PKIA8343E

LAN-40

[CAN]