Nissan Murano Z50 (2003 year). Manual — part 214
LAN-1038
[CAN]
CAN SYSTEM (TYPE 30)
Revision; 2004 April
2003 Murano
3.
CHECK HARNESS FOR OPEN CIRCUIT
1.
Disconnect ABS actuator and electric unit (control unit) connector.
2.
Check continuity between harness connector E105 terminals 3
(L), 10 (Y) and ABS actuator and electric unit (control unit) har-
ness connector E24 terminals 11 (L), 15 (Y).
OK or NG
OK
>> Connect all the connectors and diagnose again. Refer to
.
NG
>> Repair harness.
ECM Circuit Check
AKS0077G
1.
CHECK CONNECTOR
1.
Turn ignition switch OFF.
2.
Disconnect the negative battery terminal.
3.
Check terminals and connector of ECM 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 ECM connector.
2.
Check resistance between ECM harness connector M80 termi-
nals 94 (L) and 86 (Y).
OK or NG
OK
>> Replace ECM.
NG
>> Repair harness between ECM and TCM.
TCM Circuit Check
AKS0077H
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
and harness side).
●
TCM connector
●
Harness connector F102
●
Harness connector M82
OK or NG
OK
>> GO TO 2.
NG
>> Repair terminal or connector.
3 (L) - 11 (L)
: Continuity should exist.
10 (Y) - 15 (Y)
: Continuity should exist.
SKIA5017E
94 (L) - 86 (Y)
: Approx. 108 - 132
Ω
PKIA0816E
CAN SYSTEM (TYPE 30)
LAN-1039
[CAN]
C
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LAN
Revision; 2004 April
2003 Murano
2.
CHECK HARNESS FOR OPEN CIRCUIT
1.
Disconnect TCM connector.
2.
Check resistance between TCM harness connector F103 termi-
nals 5 (L) and 6 (Y).
OK or NG
OK
>> Replace TCM.
NG
>> Repair harness between TCM and low tire pressure
warning control unit.
Low Tire Pressure Warning Control Unit Circuit Check
AKS0077I
1.
CHECK CONNECTOR
1.
Turn ignition switch OFF.
2.
Disconnect the negative battery terminal.
3.
Check terminals and connector of low tire pressure warning control unit for damage, bend and loose con-
nection (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 low tire pressure warning control unit connector.
2.
Check resistance between low tire pressure warning control unit
harness connector M81 terminals 9 (L) and 21 (Y).
OK or NG
OK
>> Replace low tire pressure warning control unit.
NG
>> Repair harness between low tire pressure warning con-
trol unit and TCM.
Display Unit Circuit Check
AKS0077J
1.
CHECK CONNECTOR
1.
Turn ignition switch OFF.
2.
Disconnect the negative battery terminal.
3.
Check terminals and connector of display unit for damage, bend and loose connection (unit side and har-
ness side).
OK or NG
OK
>> GO TO 2.
NG
>> Repair terminal or connector.
5 (L) - 6 (Y)
: Approx. 54 - 66
Ω
PKIA0817E
9 (L) - 21 (Y)
: Approx. 54 - 66
Ω
PKIA2082E
LAN-1040
[CAN]
CAN SYSTEM (TYPE 30)
Revision; 2004 April
2003 Murano
2.
CHECK HARNESS FOR OPEN CIRCUIT
1.
Disconnect display unit connector.
2.
Check resistance between display unit harness connector M39
terminals 14 (L) and 16 (Y).
OK or NG
OK
>> Replace display unit.
NG
>> Repair harness between display unit and data link con-
nector.
Data Link Connector Circuit Check
AKS0077K
1.
CHECK CONNECTOR
1.
Turn ignition switch OFF.
2.
Disconnect the negative battery terminal.
3.
Check data link connector and terminals for damage, bend and loose connection (connector side and har-
ness side).
OK or NG
OK
>> GO TO 2.
NG
>> Repair terminal or connector.
2.
CHECK HARNESS FOR OPEN CIRCUIT
Check resistance between data link connector M24 terminals 6 (L)
and 14 (Y).
OK or NG
OK
>> Diagnose again. Refer to
NG
>> Repair harness between data link connector and BCM.
BCM Circuit Check
AKS0077L
1.
CHECK CONNECTOR
1.
Turn ignition switch OFF.
2.
Disconnect the negative battery terminal.
3.
Check terminals and connector of BCM for damage, bend and loose connection (control module side and
harness side).
OK or NG
OK
>> GO TO 2.
NG
>> Repair terminal or connector.
14 (L) - 16 (Y)
: Approx. 54 - 66
Ω
SKIA5018E
6 (L) - 14 (Y)
: Approx. 54 - 66
Ω
PKIA2077E
CAN SYSTEM (TYPE 30)
LAN-1041
[CAN]
C
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LAN
Revision; 2004 April
2003 Murano
2.
CHECK HARNESS FOR OPEN CIRCUIT
1.
Disconnect BCM connector.
2.
Check resistance between BCM harness connector M37 termi-
nals 70 (L) and 71 (Y).
OK or NG
OK
>> Replace BCM. Refer to
BCS-36, "Removal and Installa-
NG
>> Repair harness between BCM and data link connector.
Unified Meter and A/C Amp. Circuit Check
AKS0077M
1.
CHECK CONNECTOR
1.
Turn ignition switch OFF.
2.
Disconnect the negative battery terminal.
3.
Check terminals and connector of unified meter and A/C amp. for damage, bend and loose connection
(meter side and harness side).
OK or NG
OK
>> GO TO 2.
NG
>> Repair terminal or connector.
2.
CHECK HARNESS FOR OPEN CIRCUIT
1.
Disconnect unified meter and A/C amp. connector.
2.
Check resistance between unified meter and A/C amp. harness
connector M49 terminals 1 (L) and 11 (Y).
OK or NG
OK
>> Replace unified meter and A/C amp.
NG
>> Repair harness between unified meter and A/C amp.
and data link connector.
Steering Angle Sensor Circuit Check
AKS0077N
1.
CHECK CONNECTOR
1.
Turn ignition switch OFF.
2.
Disconnect the negative battery terminal.
3.
Check terminals and connector of steering angle sensor for damage, bend and loose connection (sensor
side and harness side).
OK or NG
OK
>> GO TO 2.
NG
>> Repair terminal or connector.
70 (L) - 71 (Y)
: Approx. 54 - 66
Ω
LKIA0028E
1 (L) - 11 (Y)
: Approx. 54 - 66
Ω
PKIA2078E
LAN-1042
[CAN]
CAN SYSTEM (TYPE 30)
Revision; 2004 April
2003 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.
Driver Seat Control Unit Circuit Check
AKS0077O
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 unit side and
harness side).
●
Driver seat control unit connector
●
Harness connector B301
●
Harness connector B9
OK or NG
OK
>> GO TO 2.
NG
>> Repair terminal or connector.
2.
CHECK HARNESS FOR OPEN CIRCUIT
1.
Disconnect driver seat control unit connector.
2.
Check resistance between driver seat control unit harness con-
nector B303 terminals 3 (L/Y) and 19 (BR/W).
OK or NG
OK
>> Replace driver seat control unit.
NG
>> Repair harness between driver seat control unit and har-
ness connector B4.
AWD Control Unit Circuit Check
AKS0077P
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.
4 (L) - 5 (Y)
: Approx. 54 - 66
Ω
PKIA0819E
3 (L/Y) - 19 (BR/W)
: Approx. 54 - 66
Ω
SKIA5024E
CAN SYSTEM (TYPE 30)
LAN-1043
[CAN]
C
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LAN
Revision; 2004 April
2003 Murano
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
AKS0077Q
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.
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
AKS0077R
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.
8 (L) - 16 (Y)
: Approx. 54 - 66
Ω
SKIA5033E
11 (L) - 15 (Y)
: Approx. 54 - 66
Ω
SKIA5019E
LAN-1044
[CAN]
CAN SYSTEM (TYPE 30)
Revision; 2004 April
2003 Murano
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).
CAN Communication Circuit Check
AKS0077S
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, unit side, meter side, sensor side and harness side).
●
ECM
●
TCM
●
Low tire pressure warning control unit
●
Display unit
●
BCM
●
Unified meter and A/C amp.
●
Steering angle sensor
●
Driver seat control unit
●
AWD control unit
●
ABS actuator and electric unit (control unit)
●
IPDM E/R
●
Between ECM and IPDM E/R
●
Between ECM and TCM
●
Between ECM and driver seat control unit
OK or NG
OK
>> GO TO 2.
NG
>> Repair terminal or connector.
48 (L) - 49 (Y)
: Approx. 108 - 132
Ω
LKIA0030E
CAN SYSTEM (TYPE 30)
LAN-1045
[CAN]
C
D
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F
G
H
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A
B
LAN
Revision; 2004 April
2003 Murano
2.
CHECK HARNESS FOR SHORT CIRCUIT
1.
Disconnect following connectors.
–
ECM connector
–
Low tire pressure warning control unit connector
–
Harness connector M82
–
Display 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 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 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.
PKIA2077E
6 (L) - Ground
: Continuity should not exist.
14 (Y) - Ground
: Continuity should not exist.
PKIA2079E
LAN-1046
[CAN]
CAN SYSTEM (TYPE 30)
Revision; 2004 April
2003 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 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.
●
Repair harness between harness connector B4 and
harness connector B2.
●
Repair 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
CAN SYSTEM (TYPE 30)
LAN-1047
[CAN]
C
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F
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LAN
Revision; 2004 April
2003 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.
●
Repair harness between harness connector B4 and
harness connector B2.
●
Repair 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
LAN-1048
[CAN]
CAN SYSTEM (TYPE 30)
Revision; 2004 April
2003 Murano
10.
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 11.
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.
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 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.
12.
ECM/IPDM E/R INTERNAL CIRCUIT INSPECTION
Check components inspection. Refer to
LAN-1049, "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
AKS0077T
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”
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 30)
LAN-1049
[CAN]
C
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LAN
Revision; 2004 April
2003 Murano
Component Inspection
AKS0077U
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-1050
[CAN]
CAN SYSTEM (TYPE 31)
Revision; 2004 April
2003 Murano
CAN SYSTEM (TYPE 31)
PFP:23710
System Description
AKS0077V
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
AKS0077W
SKIA5857E
CAN SYSTEM (TYPE 31)
LAN-1051
[CAN]
C
D
E
F
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L
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A
B
LAN
Revision; 2004 April
2003 Murano
Schematic
AKS0077X
TKWA1043E
LAN-1052
[CAN]
CAN SYSTEM (TYPE 31)
Revision; 2004 April
2003 Murano
Wiring Diagram - CAN -
AKS0077Y
TKWA1044E
CAN SYSTEM (TYPE 31)
LAN-1053
[CAN]
C
D
E
F
G
H
I
J
L
M
A
B
LAN
Revision; 2004 April
2003 Murano
TKWA1045E
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