Nissan Murano Z50 (2003 year). Manual — part 217
LAN-1086
[CAN]
CAN SYSTEM (TYPE 31)
Revision; 2004 April
2003 Murano
IPDM E/R Ignition Relay Circuit Check
AKS0078F
Check the following. If no malfunction is found, replace the IPDM E/R.
●
IPDM E/R power supply circuit. Refer to
PG-45, "IPDM E/R Power/Ground Circuit Inspection"
.
●
Ignition power supply circuit. Refer to
PG-10, "IGNITION POWER SUPPLY - IGNITION SW. IN “ON”
Component Inspection
AKS0078G
ECM/IPDM E/R INTERNAL CIRCUIT INSPECTION
●
Remove ECM and IPDM E/R from vehicle.
●
Check resistance between ECM terminals 94 and 86.
●
Check resistance between IPDM E/R terminals 48 and 49.
Unit
Terminal
Resistance value (
Ω
)
(Approx.)
ECM
94 - 86
108 - 132
IPDM E/R
48 - 49
LKIA0037E
CAN SYSTEM (TYPE 32)
LAN-1087
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision; 2004 April
2003 Murano
CAN SYSTEM (TYPE 32)
PFP:23710
System Description
AKS0078H
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
AKS0078I
SKIA5787E
LAN-1088
[CAN]
CAN SYSTEM (TYPE 32)
Revision; 2004 April
2003 Murano
Schematic
AKS0078J
TKWA1047E
CAN SYSTEM (TYPE 32)
LAN-1089
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision; 2004 April
2003 Murano
Wiring Diagram - CAN -
AKS0078K
TKWA1048E
LAN-1090
[CAN]
CAN SYSTEM (TYPE 32)
Revision; 2004 April
2003 Murano
TKWA1049E
CAN SYSTEM (TYPE 32)
LAN-1091
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision; 2004 April
2003 Murano
TKWA1050E
LAN-1092
[CAN]
CAN SYSTEM (TYPE 32)
Revision; 2004 April
2003 Murano
Work Flow
AKS00C5X
1.
When there are no indications of “TRANSMISSION”, “AIR PRESSURE MONITOR”, “METER A/C AMP”
or “AUTO DRIVE POS.” on “SELECT SYSTEM” display of CONSULT-II, print the “SELECT SYSTEM”.
2.
Print all the data of “SELF-DIAG RESULTS” for “ENGINE”, “TRANSMISSION”, “AIR PRESSURE MONI-
TOR”, “BCM”, “METER A/C AMP”, “AUTO DRIVE POS.”, “ALL MODE AWD/4WD” and “ABS” displayed
on CONSULT-II.
3.
Print all the data of “CAN DIAG SUPPORT MNTR” for “ENGINE”, “TRANSMISSION”, “AIR PRESSURE
MONITOR”, “BCM”, “METER A/C AMP”, “AUTO DRIVE POS.”, “ALL MODE AWD/4WD” and “ABS” dis-
played 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 navigation system. Refer to
AV-203, "CAN Communication Line
PKIA2093E
PKIA8260E
PKIA8343E
CAN SYSTEM (TYPE 32)
LAN-1093
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision; 2004 April
2003 Murano
7.
Attach the CAN DIAG SUPPORT 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 SUPPORT
MONITOR check sheet. Refer to
NOTE:
If “NG” is displayed on “CAN COMM” as “CAN DIAG SUPPORT MONITOR” for the diagnosed control
unit, replace the control unit. Refer to
AV-203, "CAN Communication Line Check"
9.
According to the check sheet results (example), start inspection. Refer to
LAN-1094
[CAN]
CAN SYSTEM (TYPE 32)
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.
PKIB1088E
CAN SYSTEM (TYPE 32)
LAN-1095
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision; 2004 April
2003 Murano
PKIB0899E
LAN-1096
[CAN]
CAN SYSTEM (TYPE 32)
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-1112, "Circuit Check Between TCM and
PKIB1089E
SKIA5529E
CAN SYSTEM (TYPE 32)
LAN-1097
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision; 2004 April
2003 Murano
Case 2
Check harness between data link connector and driver seat control unit. Refer to
Between Data Link Connector and Driver Seat Control Unit"
.
PKIB1090E
SKIA5530E
LAN-1098
[CAN]
CAN SYSTEM (TYPE 32)
Revision; 2004 April
2003 Murano
Case 3
Check harness between driver seat control unit and ABS actuator and electric unit (control unit). Refer to
.
PKIB1091E
SKIA5531E
CAN SYSTEM (TYPE 32)
LAN-1099
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision; 2004 April
2003 Murano
Case 4
Check ECM circuit. Refer to
.
PKIB1092E
SKIA5532E
LAN-1100
[CAN]
CAN SYSTEM (TYPE 32)
Revision; 2004 April
2003 Murano
Case 5
Check TCM circuit. Refer to
PKIB1093E
SKIA5533E
CAN SYSTEM (TYPE 32)
LAN-1101
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision; 2004 April
2003 Murano
Case 6
Check low tire pressure warning control unit circuit. Refer to
LAN-1115, "Low Tire Pressure Warning Control
.
PKIB1094E
SKIA5534E
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