Content .. 163 164 165 166 ..

Nissan Murano Z50 (2004 year). Manual - part 165

CAN SYSTEM (TYPE 13)

LAN-457

[CAN]

LAN

Revision: 2004 November

2004 Murano

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 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

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.

6 (L) - Ground

: Continuity should not exist.

14 (Y) - Ground

: Continuity should not exist.

SKIA6874E

5 (L) - 6 (Y)

: Continuity should not exist.

PKIA0817E

5 (L) - Ground

: Continuity should not exist.

6 (Y) - Ground

: Continuity should not exist.

SKIA5020E

LAN-458

[CAN]

CAN SYSTEM (TYPE 13)

Revision: 2004 November

2004 Murano

CHECK HARNESS FOR SHORT CIRCUIT

Disconnect harness connector B4.

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

OK or NG

>> GO TO 7.

>> Repair harness between harness connector B4 and har-

ness connector B2.

CHECK HARNESS FOR SHORT CIRCUIT

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

OK or NG

>> GO TO 8.

>> Repair harness between harness connector B4 and har-

ness connector B2.

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 9.

>> 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

3 (L) - 10 (Y)

: Continuity should not exist.

SKIA5021E

3 (L) - Ground

: Continuity should not exist.

10 (Y) - Ground

: Continuity should not exist.

SKIA5022E

48 (L) - 49 (Y)

: Continuity should not exist.

SKIA6873E

CAN SYSTEM (TYPE 13)

LAN-459

[CAN]

LAN

Revision: 2004 November

2004 Murano

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 10.

>> 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-459, "ECM/IPDM E/R INTERNAL CIRCUIT INSPECTION"

OK or NG

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

LAN-430, "Work Flow"

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

IPDM E/R Ignition Relay Circuit Check

AKS00A6Q

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

AKS00A6R

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) - 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-460

[CAN]

CAN SYSTEM (TYPE 14)

Revision: 2004 November

2004 Murano

CAN SYSTEM (TYPE 14)

PFP:23710

System Description

AKS00A6S

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

AKS00A6T

SKIA9973E

CAN SYSTEM (TYPE 14)

LAN-461

[CAN]

LAN

Revision: 2004 November

2004 Murano

Schematic

AKS00A6U

TKWB0058E

LAN-462

[CAN]

CAN SYSTEM (TYPE 14)

Revision: 2004 November

2004 Murano

Wiring Diagram - CAN -

AKS00A6V

TKWB0059E

CAN SYSTEM (TYPE 14)

LAN-463

[CAN]

LAN

Revision: 2004 November

2004 Murano

TKWB0060E

LAN-464

[CAN]

CAN SYSTEM (TYPE 14)

Revision: 2004 November

2004 Murano

TKWB0061E

CAN SYSTEM (TYPE 14)

LAN-465

[CAN]

LAN

Revision: 2004 November

2004 Murano

Work Flow

AKS00A6W

When there are no indications of “TRANSMISSION”, “AIR PRESSURE MONITOR”, “BCM”, “METER A/C
AMP”, or “IPDM E/R” on “SELECT SYSTEM” display of CONSULT-II, print the “SELECT SYSTEM”.

Print all the data of “SELF-DIAG RESULTS” for “ENGINE”, “TRANSMISSION”, “AIR PRESSURE MONI-
TOR”, “BCM”, “METER A/C AMP”, “ALL MODE AWD/4WD”, “ABS”, and “IPDM E/R” displayed on CON-
SULT-II.

Print all the data of “CAN DIAG SUPPORT MNTR” for “ENGINE”, “TRANSMISSION”, “AIR PRESSURE
MONITOR”, “BCM”, “METER A/C AMP”, “ALL MODE AWD/4WD”, “ABS”, and “IPDM E/R” displayed on
CONSULT-II.

Attach the printed sheet of “SELECT SYSTEM”, “SELF-DIAG RESULTS” and “CAN DIAG SUPPORT
MNTR” onto the check sheet. Refer to

LAN-467, "CHECK SHEET"

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

LAN-

467, "CHECK SHEET"

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.

Check CAN communication line of the navigation system. Refer to

AV-175, "CAN Communication Line

Check"

PKIA2093E

PKIA8260E

PKIA8343E

LAN-466

[CAN]

CAN SYSTEM (TYPE 14)

Revision: 2004 November

2004 Murano

Attach the CAN DIAG SUPPORT MONITOR check sheet onto the check sheet. Refer to