Nissan Murano Z50 (2004 year). Manual

CAN SYSTEM (TYPE 11)

LAN-377

[CAN]

LAN

Revision: 2004 November

2004 Murano

CHECK HARNESS FOR OPEN CIRCUIT

Disconnect harness connector M9.

Check continuity between data link connector M24 terminals 6
(L), 14 (Y) and harness connector M9 terminals 1 (L), 10 (Y).

OK or NG

>> GO TO 3.

>> Repair harness.

CHECK HARNESS FOR OPEN CIRCUIT

Disconnect harness connector B4.

Check continuity between harness connector B2 terminals 1 (L),
10 (Y) and harness connector B4 terminals 3 (L), 10 (Y).

OK or NG

>> Connect all the connectors and diagnose again. Refer to

LAN-358, "Work Flow"

>> Repair harness.

Circuit Check Between Driver Seat Control Unit and ABS Actuator and Electric
Unit (Control Unit)

AKS00AI2

CHECK CONNECTOR

Turn ignition switch OFF.

Disconnect the negative battery terminal.

Check following terminals and connectors for damage, bend and loose connection (connector side and
harness side).

–

Harness connector B4

–

Harness connector E105

OK or NG

>> GO TO 2.

>> Repair terminal or connector.

6 (L) - 1 (L)

: Continuity should exist.

14 (Y) - 10 (Y)

: Continuity should exist.

SKIA5015E

1 (L) - 3 (L)

: Continuity should exist.

10 (Y) - 10 (Y)

: Continuity should exist.

SKIA5016E

LAN-378

[CAN]

CAN SYSTEM (TYPE 11)

Revision: 2004 November

2004 Murano

CHECK HARNESS FOR OPEN CIRCUIT

Disconnect harness connector B2 and harness connector B4.

Check continuity between harness connector B2 terminals 1 (L),
10 (Y) and harness connector B4 terminals 3 (L), 10 (Y).

OK or NG

>> GO TO 3.

>> Repair harness.

CHECK HARNESS FOR OPEN CIRCUIT

Disconnect ABS actuator and electric unit (control unit) connector.

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

>> Connect all the connectors and diagnose again. Refer to

LAN-358, "Work Flow"

>> Repair harness.

ECM Circuit Check

AKS00AI3

CHECK CONNECTOR

Turn ignition switch OFF.

Disconnect the negative battery terminal.

Check terminals and connector of ECM for damage, bend and loose connection (control module side and
harness side).

OK or NG

>> GO TO 2.

>> Repair terminal or connector.

CHECK HARNESS FOR OPEN CIRCUIT

Disconnect ECM connector.

Check resistance between ECM harness connector M80 termi-
nals 94 (L) and 86 (Y).

OK or NG

>> Replace ECM.

>> Repair harness between ECM and TCM.

1 (L) - 3 (L)

: Continuity should exist.

10 (Y) - 10 (Y)

: Continuity should exist.

SKIA5016E

3 (L) - 11 (L)

: Continuity should exist.

10 (Y) - 15 (Y)

: Continuity should exist.

SKIA5017E

94 (L) - 86 (Y)

: Approx. 108 - 132

Ω

SKIA6865E

CAN SYSTEM (TYPE 11)

LAN-379

[CAN]

LAN

Revision: 2004 November

2004 Murano

TCM Circuit Check

AKS00AI4

CHECK CONNECTOR

Turn ignition switch OFF.

Disconnect the negative battery terminal.

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

>> GO TO 2.

>> Repair terminal or connector.

CHECK HARNESS FOR OPEN CIRCUIT

Disconnect TCM connector.

Check resistance between TCM harness connector F103 termi-
nals 5 (L) and 6 (Y).

OK or NG

>> Replace TCM.

>> Repair harness between TCM and ECM.

Display Unit Circuit Check

AKS00AI5

CHECK CONNECTOR

Turn ignition switch OFF.

Disconnect the negative battery terminal.

Check terminals and connector of display unit for damage, bend and loose connection (unit side and har-
ness side).

OK or NG

>> GO TO 2.

>> Repair terminal or connector.

CHECK HARNESS FOR OPEN CIRCUIT

Disconnect display unit connector.

Check resistance between display unit harness connector M39
terminals 14 (L) and 16 (Y).

OK or NG

>> Replace display unit.

>> Repair harness between display unit and data link con-

nector.

5 (L) - 6 (Y)

: Approx. 54 - 66

Ω

PKIA0817E

14 (L) - 16 (Y)

: Approx. 54 - 66

Ω

SKIA6867E

LAN-380

[CAN]

CAN SYSTEM (TYPE 11)

Revision: 2004 November

2004 Murano

Data Link Connector Circuit Check

AKS00AI6

CHECK CONNECTOR

Turn ignition switch OFF.

Disconnect the negative battery terminal.

Check data link connector and terminals for damage, bend and loose connection (connector side and har-
ness side).

OK or NG

>> GO TO 2.

>> Repair terminal or connector.

CHECK HARNESS FOR OPEN CIRCUIT

Check resistance between data link connector M24 terminals 6 (L)
and 14 (Y).

OK or NG

>> Diagnose again. Refer to

LAN-358, "Work Flow"

>> Repair harness between data link connector and BCM.

BCM Circuit Check

AKS00AI7

CHECK CONNECTOR

Turn ignition switch OFF.

Disconnect the negative battery terminal.

Check terminals and connector of BCM for damage, bend and loose connection (control module side and
harness side).

OK or NG

>> GO TO 2.

>> Repair terminal or connector.

CHECK HARNESS FOR OPEN CIRCUIT

Disconnect BCM connector.

Check resistance between BCM harness connector M34 termi-
nals 39 (L) and 40 (Y).

OK or NG

>> Replace BCM. Refer to

BCS-14, "Removal and Installa-

tion of BCM"

>> Repair harness between BCM and data link connector.

6 (L) - 14 (Y)

: Approx. 54 - 66

Ω

SKIA6868E

39 (L) - 40 (Y)

: Approx. 54 - 66

Ω

SKIA6869E

CAN SYSTEM (TYPE 11)

LAN-381

[CAN]

LAN

Revision: 2004 November

2004 Murano

Unified Meter and A/C Amp. Circuit Check

AKS00AI8

CHECK CONNECTOR

Turn ignition switch OFF.

Disconnect the negative battery terminal.

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

>> GO TO 2.

>> Repair terminal or connector.

CHECK HARNESS FOR OPEN CIRCUIT

Disconnect unified meter and A/C amp. connector.

Check resistance between unified meter and A/C amp. harness
connector M49 terminals 1 (L) and 11 (Y).

OK or NG

>> Replace unified meter and A/C amp.

>> Repair harness between unified meter and A/C amp.

and data link connector.

Driver Seat Control Unit Circuit Check

AKS00AI9

CHECK CONNECTOR

Turn ignition switch OFF.

Disconnect the negative battery terminal.

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

>> GO TO 2.

>> Repair terminal or connector.

CHECK HARNESS FOR OPEN CIRCUIT

Disconnect driver seat control unit connector.

Check resistance between driver seat control unit harness con-
nector B303 terminals 3 (L/Y) and 19 (BR/W).

OK or NG

>> Replace driver seat control unit.

>> Repair harness between driver seat control unit and har-

ness connector B4.

1 (L) - 11 (Y)

: Approx. 54 - 66

Ω

SKIA6871E

3 (L/Y) - 19 (BR/W)

: Approx. 54 - 66

Ω

SKIA5024E

LAN-382

[CAN]

CAN SYSTEM (TYPE 11)

Revision: 2004 November

2004 Murano

AWD Control Unit Circuit Check

AKS00AIA

CHECK CONNECTOR

Turn ignition switch OFF.

Disconnect the negative battery terminal.

Check terminals and connector of AWD control unit for damage, bend and loose connection (control unit
side and harness side).

OK or NG

>> GO TO 2.

>> Repair terminal or connector.

CHECK HARNESS FOR OPEN CIRCUIT

Disconnect AWD control unit connector.

Check resistance between AWD control unit harness connector
E111 terminals 8 (L) and 16 (Y).

OK or NG

>> Replace AWD control unit.

>> Repair harness between AWD control unit and IPDM E/

ABS Actuator and Electric Unit (Control Unit) Circuit Check

AKS00AIB

CHECK CONNECTOR

Turn ignition switch OFF.

Disconnect the negative battery terminal.

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

>> GO TO 2.

>> Repair terminal or connector.

CHECK HARNESS FOR OPEN CIRCUIT

Disconnect ABS actuator and electric unit (control unit) connector.

Check resistance between ABS actuator and electric unit (con-
trol unit) harness connector E24 terminals 11 (L) and 15 (Y).

OK or NG

>> Replace ABS actuator and electric unit (control unit).

>> Repair harness between ABS actuator and electric unit

(control unit) and IPDM E/R.

8 (L) - 16 (Y)

: Approx. 54 - 66

Ω

SKIA6889E

11 (L) - 15 (Y)

: Approx. 54 - 66

Ω

SKIA5019E

CAN SYSTEM (TYPE 11)

LAN-383

[CAN]

LAN

Revision: 2004 November

2004 Murano

IPDM E/R Circuit Check

AKS00AIC

CHECK CONNECTOR

Turn ignition switch OFF.

Disconnect the negative battery terminal.

Check terminals and connector of IPDM E/R for damage, bend and loose connection (control module side
and harness side).

OK or NG

>> GO TO 2.

>> Repair terminal or connector.

CHECK HARNESS FOR OPEN CIRCUIT

Disconnect IPDM E/R connector.

Check resistance between IPDM E/R harness connector E9 ter-
minals 48 (L) and 49 (Y).

OK or NG

>> Replace IPDM E/R.

>> Repair harness between IPDM E/R and ABS actuator

and electric unit (control unit).

CAN Communication Circuit Check

AKS00AID

CHECK CONNECTOR

Turn ignition switch OFF.

Disconnect the negative battery terminal.

Check following terminals and connectors for damage, bend and loose connection (control module side,
unit side, meter side, control unit side and harness side).

–

ECM

–

TCM

–

Display unit

–

BCM

–

Unified meter and A/C amp.

–

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

>> GO TO 2.

>> Repair terminal or connector.

48 (L) - 49 (Y)

: Approx. 108 - 132

Ω

SKIA6873E

LAN-384

[CAN]

CAN SYSTEM (TYPE 11)

Revision: 2004 November

2004 Murano

CHECK HARNESS FOR SHORT CIRCUIT

Disconnect following connectors.

–

ECM connector

–

Harness connector M82

–

Display unit connector

–

BCM connector

–

Unified meter and A/C amp. connector

–

Harness connector M9

Check continuity between data link connector M24 terminals 6
(L) and 14 (Y).

OK or NG

>> GO TO 3.

>> 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 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 harness connector M9

CHECK HARNESS FOR SHORT CIRCUIT

Check continuity between data link connector M24 terminals 6 (L),
14 (Y) and ground.

OK or NG

>> GO TO 4.

>> 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 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 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 11)

LAN-385

[CAN]

LAN

Revision: 2004 November

2004 Murano

CHECK HARNESS FOR SHORT CIRCUIT

Disconnect TCM connector.

Check continuity between TCM harness connector F103 termi-
nals 5 (L) and 6 (Y).

OK or NG

>> GO TO 5.

>> Repair harness between TCM and harness connector

F102.

CHECK HARNESS FOR SHORT CIRCUIT

Check continuity between TCM harness connector F103 terminals 5
(L), 6 (Y) and ground.

OK or NG

>> GO TO 6.

>> Repair harness between TCM and harness connector

F102.

CHECK HARNESS FOR SHORT CIRCUIT

Disconnect harness connector B4 and harness connector B9.

Check continuity between harness connector B4 terminals 3 (L)
and 10 (Y).

OK or NG

>> GO TO 7.

>> 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-386

[CAN]

CAN SYSTEM (TYPE 11)

Revision: 2004 November

2004 Murano

CHECK HARNESS FOR SHORT CIRCUIT

Check continuity between harness connector B4 terminals 3 (L), 10
(Y) and ground.

OK or NG

>> GO TO 8.

>> 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

CHECK HARNESS FOR SHORT CIRCUIT

Disconnect driver seat control unit connector.

Check continuity between driver seat control unit harness con-
nector B303 terminals 3 (L/Y) and 19 (BR/W).

OK or NG

>> GO TO 9.

>> Repair harness between driver seat control unit and har-

ness connector B301.

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

>> GO TO 10.

>> 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 11)

LAN-387

[CAN]

LAN

Revision: 2004 November

2004 Murano

10.

CHECK HARNESS FOR SHORT CIRCUIT

Disconnect AWD control unit connector, ABS actuator and electric unit (control unit) connector and IPDM
E/R connector.

Check continuity between IPDM E/R harness connector E9 ter-
minals 48 (L) and 49 (Y).

OK or NG

>> GO TO 11.

>> 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

>> GO TO 12.

>> 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-388, "ECM/IPDM E/R INTERNAL CIRCUIT INSPECTION"

OK or NG

>> Connect all the connectors and diagnose again. Refer to

LAN-358, "Work Flow"

>> Replace ECM and/or IPDM E/R.

48 (L) - 49 (Y)

: Continuity should not exist.

SKIA6873E

48 (L) - Ground

: Continuity should not exist.

49 (Y) - Ground

: Continuity should not exist.

SKIA6879E

LAN-388

[CAN]

CAN SYSTEM (TYPE 11)

Revision: 2004 November

2004 Murano

IPDM E/R Ignition Relay Circuit Check

AKS00AIE

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”

AND/OR “START”"

Component Inspection

AKS00AIF

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 12)

LAN-389

[CAN]

LAN

Revision: 2004 November

2004 Murano

CAN SYSTEM (TYPE 12)

PFP:23710

System Description

AKS00A5M

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

AKS00A5N

SKIA9971E

CAN SYSTEM (TYPE 12)

LAN-391

[CAN]

LAN

Revision: 2004 November

2004 Murano

Wiring Diagram - CAN -

AKS00A5P

TKWB0050E

Nissan Murano Z50 (2004 year). Manual - part 160