Nissan Murano Z50 (2003 year). Manual — part 151
LAN-30
[CAN]
CAN COMMUNICATION
Revision; 2004 April
2003 Murano
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Type28
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Type29
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Type30
SKIA4929E
SKIA4930E
SKIA4931E
CAN COMMUNICATION
LAN-31
[CAN]
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Revision; 2004 April
2003 Murano
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Type31
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Type32
SKIA4932E
SKIA4933E
LAN-32
[CAN]
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
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
CAN COMMUNICATION
LAN-33
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Revision; 2004 April
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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
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)
LAN-35
[CAN]
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Revision; 2004 April
2003 Murano
Schematic
AKS0069A
TKWA0789E
LAN-36
[CAN]
CAN SYSTEM (TYPE 1)
Revision; 2004 April
2003 Murano
Wiring Diagram - CAN -
AKS0068U
TKWA0790E
CAN SYSTEM (TYPE 1)
LAN-37
[CAN]
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Revision; 2004 April
2003 Murano
TKWA0791E
LAN-38
[CAN]
CAN SYSTEM (TYPE 1)
Revision; 2004 April
2003 Murano
TKWA0792E
CAN SYSTEM (TYPE 1)
LAN-39
[CAN]
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Revision; 2004 April
2003 Murano
Work Flow
AKS00C4T
1.
When there are no indications of “TRANSMISSION” or “METER A/C AMP” on “SELECT SYSTEM” dis-
play of CONSULT-II, print the “SELECT SYSTEM”.
2.
Print all the data of “SELF-DIAG RESULTS” for “ENGINE”, “TRANSMISSION”, “BCM”, “METER A/C
AMP” and “ABS” displayed on CONSULT-II.
3.
Print all the data of “CAN DIAG SUPPORT MNTR” for “ENGINE”, “TRANSMISSION”, “BCM”, “METER A/
C AMP” and “ABS” displayed on CONSULT-II.
4.
Attach the printed sheet of “SELECT SYSTEM”, “SELF-DIAG RESULTS” and “CAN DIAG SUPPORT
MNTR” onto the check sheet. Refer to
5.
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
.
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.
6.
Check CAN communication line of the integrated display system. Refer to
7.
Attach the CAN DIAG MONITOR check sheet onto the check sheet. Refer to
8.
Mark the “NG” or “UNKWN” item of the check sheet table with “v” from the result of CAN DIAG MONITOR
check sheet. Refer to
PKIA2093E
PKIA8260E
PKIA8343E
LAN-40
[CAN]
CAN SYSTEM (TYPE 1)
Revision; 2004 April
2003 Murano
NOTE:
If “NG” is displayed on “CAN COMM” as “CAN DIAG MNTR” for the diagnosed control unit, replace the
control unit. Refer to
AV-110, "CAN Communication Line Check"
9.
According to the check sheet results (example), start inspection. Refer to
.
CAN SYSTEM (TYPE 1)
LAN-41
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Revision; 2004 April
2003 Murano
CHECK SHEET
NOTE:
If “NG” is displayed on “INITIAL DIAG (Initial diagnosis)” or “CAN COMM” for the diagnosed control unit,
replace the control unit.
PKIB0421E
LAN-42
[CAN]
CAN SYSTEM (TYPE 1)
Revision; 2004 April
2003 Murano
PKIB0422E
CAN SYSTEM (TYPE 1)
LAN-43
[CAN]
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Revision; 2004 April
2003 Murano
CHECK SHEET RESULTS (EXAMPLE)
NOTE:
If “NG” is displayed on “INITIAL DIAG (Initial diagnosis)” or “CAN COMM” for the diagnosed control unit,
replace the control unit.
Case 1
Check harness between TCM and data link connector. Refer to
LAN-54, "Circuit Check Between TCM and
PKIB0423E
SKIA5104E
LAN-44
[CAN]
CAN SYSTEM (TYPE 1)
Revision; 2004 April
2003 Murano
Case 2
Check harness between data link connector and ABS actuator and electric unit (control unit). Refer to
"Circuit Check Between Data Link Connector and ABS Actuator and Electric Unit (Control Unit)"
PKIB0424E
SKIA5105E
CAN SYSTEM (TYPE 1)
LAN-45
[CAN]
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Revision; 2004 April
2003 Murano
Case 3
Check ECM circuit. Refer to
.
PKIB0425E
SKIA5106E
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