Nissan Murano Z50 (2004 year). Manual — part 167
CAN SYSTEM (TYPE 14)
LAN-489
[CAN]
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Revision: 2004 November
2004 Murano
2.
CHECK HARNESS FOR OPEN CIRCUIT
1.
Disconnect steering angle sensor connector.
2.
Check resistance between steering angle sensor harness con-
nector M33 terminals 4 (L) and 5 (Y).
OK or NG
OK
>> Replace steering angle sensor.
NG
>> Repair harness between steering angle sensor and data
link connector.
AWD Control Unit Circuit Check
AKS00A77
1.
CHECK CONNECTOR
1.
Turn ignition switch OFF.
2.
Disconnect the negative battery terminal.
3.
Check terminals and connector of AWD control unit for damage, bend and loose connection (control unit
side and harness side).
OK or NG
OK
>> GO TO 2.
NG
>> Repair terminal or connector.
2.
CHECK HARNESS FOR OPEN CIRCUIT
1.
Disconnect AWD control unit connector.
2.
Check resistance between AWD control unit harness connector
E111 terminals 8 (L) and 16 (Y).
OK or NG
OK
>> Replace AWD control unit.
NG
>> Repair harness between AWD control unit and IPDM E/
R.
ABS Actuator and Electric Unit (Control Unit) Circuit Check
AKS00A78
1.
CHECK CONNECTOR
1.
Turn ignition switch OFF.
2.
Disconnect the negative battery terminal.
3.
Check terminals and connector of ABS actuator and electric unit (control unit) for damage, bend and loose
connection (control unit side and harness side).
OK or NG
OK
>> GO TO 2.
NG
>> Repair terminal or connector.
4 (L) - 5 (Y)
: Approx. 54 - 66
Ω
SKIA6870E
8 (L) - 16 (Y)
: Approx. 54 - 66
Ω
SKIA6889E
LAN-490
[CAN]
CAN SYSTEM (TYPE 14)
Revision: 2004 November
2004 Murano
2.
CHECK HARNESS FOR OPEN CIRCUIT
1.
Disconnect ABS actuator and electric unit (control unit) connector.
2.
Check resistance between ABS actuator and electric unit (con-
trol unit) harness connector E24 terminals 11 (L) and 15 (Y).
OK or NG
OK
>> Replace ABS actuator and electric unit (control unit).
NG
>> Repair harness between ABS actuator and electric unit
(control unit) and IPDM E/R.
IPDM E/R Circuit Check
AKS00A79
1.
CHECK CONNECTOR
1.
Turn ignition switch OFF.
2.
Disconnect the negative battery terminal.
3.
Check terminals and connector of IPDM E/R for damage, bend and loose connection (control module side
and harness side).
OK or NG
OK
>> GO TO 2.
NG
>> Repair terminal or connector.
2.
CHECK HARNESS FOR OPEN CIRCUIT
1.
Disconnect IPDM E/R connector.
2.
Check resistance between IPDM E/R harness connector E9 ter-
minals 48 (L) and 49 (Y).
OK or NG
OK
>> Replace IPDM E/R.
NG
>> Repair harness between IPDM E/R and ABS actuator
and electric unit (control unit).
11 (L) - 15 (Y)
: Approx. 54 - 66
Ω
SKIA5019E
48 (L) - 49 (Y)
: Approx. 108 - 132
Ω
SKIA6873E
CAN SYSTEM (TYPE 14)
LAN-491
[CAN]
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LAN
Revision: 2004 November
2004 Murano
CAN Communication Circuit Check
AKS00A7A
1.
CHECK CONNECTOR
1.
Turn ignition switch OFF.
2.
Disconnect the negative battery terminal.
3.
Check following terminals and connectors for damage, bend and loose connection (control module side,
control unit side, meter side, sensor side and harness side).
–
ECM
–
TCM
–
Low tire pressure warning control unit
–
BCM
–
Display control unit
–
Unified meter and A/C amp.
–
Steering angle sensor
–
AWD control unit
–
ABS actuator and electric unit (control unit)
–
IPDM E/R
–
Between ECM and IPDM E/R
–
Between ECM and TCM
OK or NG
OK
>> GO TO 2.
NG
>> Repair terminal or connector.
LAN-492
[CAN]
CAN SYSTEM (TYPE 14)
Revision: 2004 November
2004 Murano
2.
CHECK HARNESS FOR SHORT CIRCUIT
1.
Disconnect following connectors.
–
ECM connector
–
Low tire pressure warning control unit connector
–
Harness connector M82
–
Display control unit connector
–
BCM connector
–
Unified meter and A/C amp. connector
–
Steering angle sensor connector
–
Harness connector M9
2.
Check continuity between data link connector M24 terminals 6
(L) and 14 (Y).
OK or NG
OK
>> GO TO 3.
NG
>> Check the following harnesses. If any harness is dam-
aged, repair the harness.
●
Harness between data link connector and ECM
●
Harness between data link connector and low tire
pressure warning control unit
●
Harness between data link connector and harness connector M82
●
Harness between data link connector and display control unit
●
Harness between data link connector and BCM
●
Harness between data link connector and unified meter and A/C amp.
●
Harness between data link connector and steering angle sensor
●
Harness between data link connector and harness connector M9
3.
CHECK HARNESS FOR SHORT CIRCUIT
Check continuity between data link connector M24 terminals 6 (L),
14 (Y) and ground.
OK or NG
OK
>> GO TO 4.
NG
>> Check the following harnesses. If any harness is dam-
aged, repair the harness.
●
Harness between data link connector and ECM
●
Harness between data link connector and low tire
pressure warning control unit
●
Harness between data link connector and harness connector M82
●
Harness between data link connector and display control unit
●
Harness between data link connector and BCM
●
Harness between data link connector and unified meter and A/C amp.
●
Harness between data link connector and steering angle sensor
●
Harness between data link connector and harness connector M9
6 (L) - 14 (Y)
: Continuity should not exist.
SKIA6868E
6 (L) - Ground
: Continuity should not exist.
14 (Y) - Ground
: Continuity should not exist.
SKIA6874E
CAN SYSTEM (TYPE 14)
LAN-493
[CAN]
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LAN
Revision: 2004 November
2004 Murano
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.
2.
Check continuity between harness connector B4 terminals 3 (L)
and 10 (Y).
OK or NG
OK
>> GO TO 7.
NG
>> Repair harness between harness connector B4 and har-
ness connector B2.
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
>> Repair harness between harness connector B4 and har-
ness connector B2.
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
3 (L) - Ground
: Continuity should not exist.
10 (Y) - Ground
: Continuity should not exist.
SKIA5022E
LAN-494
[CAN]
CAN SYSTEM (TYPE 14)
Revision: 2004 November
2004 Murano
8.
CHECK HARNESS FOR SHORT CIRCUIT
1.
Disconnect AWD control unit connector, 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 9.
NG
>> Check the following harnesses. If any harness is dam-
aged, repair the harness.
●
Harness between IPDM E/R and AWD control unit
●
Harness between IPDM E/R and ABS actuator and
electric unit (control unit)
●
Harness between IPDM E/R and harness connector E105
9.
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 10.
NG
>> Check the following harnesses. If any harness is dam-
aged, repair the harness.
●
Harness between IPDM E/R and AWD control unit
●
Harness between IPDM E/R and ABS actuator and
electric unit (control unit)
●
Harness between IPDM E/R and harness connector E105
10.
ECM/IPDM E/R INTERNAL CIRCUIT INSPECTION
Check components inspection. Refer to
LAN-495, "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
AKS00A7B
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”
48 (L) - 49 (Y)
: Continuity should not exist.
SKIA6873E
48 (L) - Ground
: Continuity should not exist.
49 (Y) - Ground
: Continuity should not exist.
SKIA6879E
CAN SYSTEM (TYPE 14)
LAN-495
[CAN]
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Revision: 2004 November
2004 Murano
Component Inspection
AKS00A7C
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-496
[CAN]
CAN SYSTEM (TYPE 15)
Revision: 2004 November
2004 Murano
CAN SYSTEM (TYPE 15)
PFP:23710
System Description
AKS00A7D
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
AKS00A7E
SKIA9974E
CAN SYSTEM (TYPE 15)
LAN-497
[CAN]
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LAN
Revision: 2004 November
2004 Murano
Schematic
AKS00A7F
TKWB0062E
LAN-498
[CAN]
CAN SYSTEM (TYPE 15)
Revision: 2004 November
2004 Murano
Wiring Diagram - CAN -
AKS00A7G
TKWB0063E
CAN SYSTEM (TYPE 15)
LAN-499
[CAN]
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LAN
Revision: 2004 November
2004 Murano
TKWB0064E
LAN-500
[CAN]
CAN SYSTEM (TYPE 15)
Revision: 2004 November
2004 Murano
TKWB0065E
CAN SYSTEM (TYPE 15)
LAN-501
[CAN]
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Revision: 2004 November
2004 Murano
Work Flow
AKS00ASE
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.”, “ALL MODE AWD/4WD”, “ABS”, and “IPDM E/
R” 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”, “ABS”, and
“IPDM E/R” 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
PKIA2093E
PKIA8260E
PKIA8343E
LAN-502
[CAN]
CAN SYSTEM (TYPE 15)
Revision: 2004 November
2004 Murano
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
.
NOTE:
If “NG” is displayed on “CAN COMM” as “CAN DIAG MNTR” for the diagnosed control unit, replace the
control unit. Refer to
AV-101, "CAN Communication Line Check"
.
9.
According to the check sheet results (example), start inspection. Refer to
.
CAN SYSTEM (TYPE 15)
LAN-503
[CAN]
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LAN
Revision: 2004 November
2004 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.
PKIA8577E
LAN-504
[CAN]
CAN SYSTEM (TYPE 15)
Revision: 2004 November
2004 Murano
PKIA6230E
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