Nissan Murano Z50 (2004 year). Manual - part 139

CAN SYSTEM (TYPE 1)

LAN-41

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Case 10

Check IPDM E/R circuit. Refer to 

LAN-48, "IPDM E/R Circuit Check"

 .

Case 11

Check CAN communication circuit. Refer to 

LAN-48, "CAN Communication Circuit Check"

 .

PKIA8355E

SKIA5113E

PKIA8356E

LAN-42

[CAN]

CAN SYSTEM (TYPE 1)

Revision: 2004 November

2004 Murano

Case 12

Check IPDM E/R ignition relay circuit continuously sticks “OFF”. Refer to 

LAN-51, "IPDM E/R Ignition Relay

Circuit Check"

 .

Case 13

Check IPDM E/R ignition relay circuit continuously sticks “ON”. Refer to 

LAN-51, "IPDM E/R Ignition Relay Cir-

cuit Check"

 .

PKIA8357E

PKIA8358E

CAN SYSTEM (TYPE 1)

LAN-43

[CAN]

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Circuit Check Between TCM and Data Link Connector

AKS0068W

1. 

CHECK HARNESS FOR OPEN CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect the negative battery terminal.

3.

Disconnect ECM connector and harness connector M82.

4.

Check continuity between harness connector M82 terminals 8
(L), 9 (Y) and data link connector M24 terminals 6 (L), 14 (Y).

OK or NG

OK

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

LAN-28, "Work Flow"

 .

NG

>> Repair harness.

Circuit Check Between Data Link Connector and ABS Actuator and Electric Unit 
(Control Unit)

AKS0068Z

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 (connector side and
harness side).

–

Harness connector M9

–

Harness connector B2

–

Harness connector B4

–

Harness connector E105

OK or NG

OK

>> GO TO 2.

NG

>> Repair terminal or connector.

2. 

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect harness connector M9.

2.

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

OK or NG

OK

>> GO TO 3.

NG

>> Repair harness.

8 (L) - 6 (L)

: Continuity should exist.

9 (Y) - 14 (Y)

: Continuity should exist.

SKIA5014E

6 (L) - 1 (L)

: Continuity should exist.

14 (Y) - 10 (Y)

: Continuity should exist.

SKIA5015E

LAN-44

[CAN]

CAN SYSTEM (TYPE 1)

Revision: 2004 November

2004 Murano

3. 

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect harness connector B4.

2.

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

OK or NG

OK

>> GO TO 4.

NG

>> Repair harness.

4. 

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

LAN-28, "Work Flow"

 .

NG

>> Repair harness.

ECM Circuit Check

AKS0069C

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.

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 1)

LAN-45

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TCM Circuit Check

AKS00691

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.

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 ECM.

Display Unit Circuit Check

AKS0069D

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.

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.

5 (L) - 6 (Y) 

: Approx. 54 - 66

Ω

PKIA0817E

14 (L) - 16 (Y) 

: Approx. 54 - 66

Ω

SKIA6867E

LAN-46

[CAN]

CAN SYSTEM (TYPE 1)

Revision: 2004 November

2004 Murano

Data Link Connector Circuit Check

AKS00692

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 

LAN-28, "Work Flow"

 .

NG

>> Repair harness between data link connector and BCM.

BCM Circuit Check

AKS00694

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.

2. 

CHECK HARNESS FOR OPEN CIRCUIT

1.

Disconnect BCM connector.

2.

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

OK or NG

OK

>> Replace BCM. Refer to 

BCS-14, "Removal and Installa-

tion of BCM"

 .

NG

>> 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 1)

LAN-47

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Unified Meter and A/C Amp. Circuit Check

AKS00693

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.

ABS Actuator and Electric Unit (Control Unit) Circuit Check

AKS00695

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.

1 (L) - 11 (Y) 

: Approx. 54 - 66

Ω

SKIA6871E

11 (L) - 15 (Y) 

: Approx. 54 - 66

Ω

SKIA5019E

LAN-48

[CAN]

CAN SYSTEM (TYPE 1)

Revision: 2004 November

2004 Murano

IPDM E/R Circuit Check

AKS00696

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).

CAN Communication Circuit Check

AKS00697

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,
unit side, meter side, control unit side and harness side).

–

ECM

–

TCM

–

Display unit

–

BCM

–

Unified meter and A/C amp.

–

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.

48 (L) - 49 (Y) 

: Approx. 108 - 132

Ω

SKIA6873E

CAN SYSTEM (TYPE 1)

LAN-49

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2. 

CHECK HARNESS FOR SHORT CIRCUIT

1.

Disconnect following connectors.

–

ECM connector

–

Harness connector M82

–

Display unit connector

–

BCM connector

–

Unified meter and A/C amp. 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 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

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 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

LAN-50

[CAN]

CAN SYSTEM (TYPE 1)

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

CAN SYSTEM (TYPE 1)

LAN-51

[CAN]

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8. 

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 9.

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

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 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-51, "ECM/IPDM E/R INTERNAL CIRCUIT INSPECTION"

 .

OK or NG

OK

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

LAN-28, "Work Flow"

 .

NG

>> Replace ECM and/or IPDM E/R.

IPDM E/R Ignition Relay Circuit Check

AKS00698

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

AKS00699

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-52

[CAN]

CAN SYSTEM (TYPE 2)

Revision: 2004 November

2004 Murano

CAN SYSTEM (TYPE 2)

PFP:23710

System Description

AKS00A4K

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

AKS00A4L

SKIA9961E

CAN SYSTEM (TYPE 2)

LAN-53

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Schematic

AKS00A4M

TKWB0009E

LAN-54

[CAN]

CAN SYSTEM (TYPE 2)

Revision: 2004 November

2004 Murano

Wiring Diagram - CAN -

AKS00A4N

TKWB0010E

CAN SYSTEM (TYPE 2)

LAN-55

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TKWB0011E

LAN-56

[CAN]

CAN SYSTEM (TYPE 2)

Revision: 2004 November

2004 Murano

TKWB0012E