Nissan Murano Z50 (2004 year). Manual — part 152
CAN SYSTEM (TYPE 7)
LAN-249
[CAN]
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4.
CHECK HARNESS FOR SHORT CIRCUIT
1.
Disconnect TCM connector.
2.
Check continuity between TCM harness connector F103 termi-
nals 5 (L) and 6 (Y).
OK or NG
OK
>> GO TO 5.
NG
>> Repair harness between TCM and harness connector
F102.
5.
CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between TCM harness connector F103 terminals 5
(L), 6 (Y) and ground.
OK or NG
OK
>> GO TO 6.
NG
>> Repair harness between TCM and harness connector
F102.
6.
CHECK HARNESS FOR SHORT CIRCUIT
1.
Disconnect harness connector B4 and harness connector B9.
2.
Check continuity between harness connector B4 terminals 3 (L)
and 10 (Y).
OK or NG
OK
>> GO TO 7.
NG
>> Check the following harnesses. If any harness is dam-
aged, repair the harness.
●
Harness between harness connector B4 and harness
connector B2
●
Harness between harness connector B4 and harness
connector B9
5 (L) - 6 (Y)
: Continuity should not exist.
PKIA0817E
5 (L) - Ground
: Continuity should not exist.
6 (Y) - Ground
: Continuity should not exist.
SKIA5020E
3 (L) - 10 (Y)
: Continuity should not exist.
SKIA5021E
LAN-250
[CAN]
CAN SYSTEM (TYPE 7)
Revision: 2004 November
2004 Murano
7.
CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between harness connector B4 terminals 3 (L), 10
(Y) and ground.
OK or NG
OK
>> GO TO 8.
NG
>> Check the following harnesses. If any harness is dam-
aged, repair the harness.
●
Harness between harness connector B4 and harness
connector B2
●
Harness between harness connector B4 and harness connector B9
8.
CHECK HARNESS FOR SHORT CIRCUIT
1.
Disconnect driver seat control unit connector.
2.
Check continuity between driver seat control unit harness con-
nector B303 terminals 3 (L/Y) and 19 (BR/W).
OK or NG
OK
>> GO TO 9.
NG
>> Repair harness between driver seat control unit and har-
ness connector B301.
9.
CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between driver seat control unit harness connector
B303 terminals 3 (L/Y), 19 (BR/W) and ground.
OK or NG
OK
>> GO TO 10.
NG
>> Repair harness between driver seat control unit and har-
ness connector B301.
3 (L) - Ground
: Continuity should not exist.
10 (Y) - Ground
: Continuity should not exist.
SKIA5022E
3 (L/Y) - 19 (BR/W)
: Continuity should not exist.
SKIA5024E
3 (L/Y) - Ground
: Continuity should not exist.
19 (BR/W) - Ground
: Continuity should not exist.
SKIA5025E
CAN SYSTEM (TYPE 7)
LAN-251
[CAN]
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Revision: 2004 November
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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-251, "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.
IPDM E/R Ignition Relay Circuit Check
AKS00AG5
Check the following. If no malfunction is found, replace the IPDM E/R.
●
IPDM E/R power supply circuit. Refer to
PG-27, "IPDM E/R Power/Ground Circuit Inspection"
●
Ignition power supply circuit. Refer to
PG-10, "IGNITION POWER SUPPLY - IGNITION SW. IN “ON”
.
Component Inspection
AKS00AG6
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.
48 (L) - 49 (Y)
: Continuity should not exist.
SKIA6873E
48 (L) - Ground
: Continuity should not exist.
49 (Y) - Ground
: Continuity should not exist.
SKIA6879E
Unit
Terminal
Resistance value (
Ω
)
(Approx.)
ECM
94 - 86
108 - 132
IPDM E/R
48 - 49
LKIA0037E
LAN-252
[CAN]
CAN SYSTEM (TYPE 8)
Revision: 2004 November
2004 Murano
CAN SYSTEM (TYPE 8)
PFP:23710
System Description
AKS00AG7
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
AKS00AG8
SKIA9967E
CAN SYSTEM (TYPE 8)
LAN-253
[CAN]
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Revision: 2004 November
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Schematic
AKS00AG9
TKWB0033E
LAN-254
[CAN]
CAN SYSTEM (TYPE 8)
Revision: 2004 November
2004 Murano
Wiring Diagram - CAN -
AKS00AGA
TKWB0034E
CAN SYSTEM (TYPE 8)
LAN-255
[CAN]
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Revision: 2004 November
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TKWB0035E
LAN-256
[CAN]
CAN SYSTEM (TYPE 8)
Revision: 2004 November
2004 Murano
TKWB0036E
CAN SYSTEM (TYPE 8)
LAN-257
[CAN]
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Revision: 2004 November
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Work Flow
AKS00AGB
1.
When there are no indications of “TRANSMISSION”, “AIR PRESSURE MONITOR”, “BCM”, “METER A/C
AMP”, “AUTO DRIVE POS.”or “IPDM E/R” 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.”, “ABS”, and “IPDM E/R” displayed on CON-
SULT-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.”, “ABS”, “IPDM E/R” displayed on CON-
SULT-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-175, "CAN Communication Line
.
PKIA2093E
PKIA8260E
PKIA8343E
LAN-258
[CAN]
CAN SYSTEM (TYPE 8)
Revision: 2004 November
2004 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-175, "CAN Communication Line Check"
9.
According to the check sheet results (example), start inspection. Refer to
.
CAN SYSTEM (TYPE 8)
LAN-259
[CAN]
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Revision: 2004 November
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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.
PKIA8458E
LAN-260
[CAN]
CAN SYSTEM (TYPE 8)
Revision: 2004 November
2004 Murano
PKIA8440E
CAN SYSTEM (TYPE 8)
LAN-261
[CAN]
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Revision: 2004 November
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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-276, "Circuit Check Between TCM and
PKIA8459E
SKIA5312E
LAN-262
[CAN]
CAN SYSTEM (TYPE 8)
Revision: 2004 November
2004 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"
.
PKIA8460E
SKIA5313E
CAN SYSTEM (TYPE 8)
LAN-263
[CAN]
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Revision: 2004 November
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Case 3
Check harness between driver seat control unit and ABS actuator and electric unit (control unit). Refer to
.
PKIA8461E
SKIA5316E
LAN-264
[CAN]
CAN SYSTEM (TYPE 8)
Revision: 2004 November
2004 Murano
Case 4
Check ECM circuit. Refer to
PKIA8462E
SKIA5319E
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