Nissan Murano Z50 (2003 year). Manual — part 163
LAN-222
[CAN]
CAN SYSTEM (TYPE 6)
Revision; 2004 April
2003 Murano
10.
CHECK HARNESS FOR SHORT CIRCUIT
1.
Disconnect ABS actuator and electric unit (control unit) connector and IPDM E/R connector.
2.
Check continuity between IPDM E/R harness connector E9 ter-
minals 48 (L) and 49 (Y).
OK or NG
OK
>> GO TO 11.
NG
>> Check the following harnesses. If any harness is dam-
aged, repair the harness.
●
Harness between IPDM E/R and ABS actuator and
electric unit (control unit).
●
Harness between IPDM E/R and harness connector
E105.
11.
CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between IPDM E/R harness connector E9 termi-
nals 48 (L), 49 (Y) and ground.
OK or NG
OK
>> GO TO 12.
NG
>> Check the following harnesses. If any harness is dam-
aged, repair the harness.
●
Harness between IPDM E/R and ABS actuator and
electric unit (control unit).
●
Harness between IPDM E/R and harness connector E105.
12.
ECM/IPDM E/R INTERNAL CIRCUIT INSPECTION
Check components inspection. Refer to
LAN-223, "ECM/IPDM E/R INTERNAL CIRCUIT INSPECTION"
OK or NG
OK
>> Connect all the connectors and diagnose again. Refer to
.
NG
>> Replace ECM and/or IPDM E/R.
48 (L) - 49 (Y)
: Continuity should not exist.
LKIA0030E
48 (L) - Ground
: Continuity should not exist.
49 (Y) - Ground
: Continuity should not exist.
LKIA0036E
CAN SYSTEM (TYPE 6)
LAN-223
[CAN]
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Revision; 2004 April
2003 Murano
IPDM E/R Ignition Relay Circuit Check
AKS006RW
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
AKS006RX
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
LAN-224
[CAN]
CAN SYSTEM (TYPE 7)
Revision; 2004 April
2003 Murano
CAN SYSTEM (TYPE 7)
PFP:23710
System Description
AKS006RZ
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
AKS006S0
SKIA5865E
CAN SYSTEM (TYPE 7)
LAN-225
[CAN]
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Revision; 2004 April
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Schematic
AKS006S1
TKWA0947E
LAN-226
[CAN]
CAN SYSTEM (TYPE 7)
Revision; 2004 April
2003 Murano
Wiring Diagram - CAN -
AKS006S2
TKWA0948E
CAN SYSTEM (TYPE 7)
LAN-227
[CAN]
C
D
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Revision; 2004 April
2003 Murano
TKWA0949E
LAN-228
[CAN]
CAN SYSTEM (TYPE 7)
Revision; 2004 April
2003 Murano
TKWA0950E
CAN SYSTEM (TYPE 7)
LAN-229
[CAN]
C
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Revision; 2004 April
2003 Murano
Work Flow
AKS00C4Z
1.
When there are no indications of “TRANSMISSION”, “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”, “BCM”, “METER A/C
AMP”, “AUTO DRIVE POS.” and “ABS” displayed on CONSULT-II.
3.
Print all the data of “CAN DIAG SUPPORT MNTR” for “ENGINE”, “TRANSMISSION”, “BCM”, “METER A/
C AMP”, “AUTO DRIVE POS.” 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 navigation system. Refer to
AV-203, "CAN Communication Line
.
7.
Attach the CAN DIAG SUPPORT MONITOR check sheet onto the check sheet. Refer to
PKIA2093E
PKIA8260E
PKIA8343E
LAN-230
[CAN]
CAN SYSTEM (TYPE 7)
Revision; 2004 April
2003 Murano
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
.
CAN SYSTEM (TYPE 7)
LAN-231
[CAN]
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Revision; 2004 April
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CHECK SHEET
NOTE:
If “NG” is displayed on “INITIAL DIAG (Initial diagnosis)” or “CAN COMM” for the diagnosed control unit,
replace the control unit.
PKIB0515E
LAN-232
[CAN]
CAN SYSTEM (TYPE 7)
Revision; 2004 April
2003 Murano
PKIB0467E
CAN SYSTEM (TYPE 7)
LAN-233
[CAN]
C
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Revision; 2004 April
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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-246, "Circuit Check Between TCM and
PKIB0516E
SKIA5175E
LAN-234
[CAN]
CAN SYSTEM (TYPE 7)
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"
.
PKIB0517E
SKIA5176E
CAN SYSTEM (TYPE 7)
LAN-235
[CAN]
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Revision; 2004 April
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Case 3
Check harness between driver seat control unit and ABS actuator and electric unit (control unit). Refer to
.
PKIB0518E
SKIA5177E
LAN-236
[CAN]
CAN SYSTEM (TYPE 7)
Revision; 2004 April
2003 Murano
Case 4
Check ECM circuit. Refer to
PKIB0519E
SKIA5178E
CAN SYSTEM (TYPE 7)
LAN-237
[CAN]
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Revision; 2004 April
2003 Murano
Case 5
Check TCM circuit. Refer to
PKIB0520E
SKIA5179E
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