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Nissan Murano Z50 (2003 year). Manual - part 153

LAN-62

[CAN]

CAN SYSTEM (TYPE 1)

Revision; 2004 April

2003 Murano

CHECK HARNESS FOR SHORT CIRCUIT

Disconnect 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 ABS actuator and
electric unit (control unit).

●

Harness between IPDM E/R and harness connector
E105.

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 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-62, "ECM/IPDM E/R INTERNAL CIRCUIT INSPECTION"

OK or NG

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

LAN-39, "Work Flow"

>> 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-45, "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.

LKIA0030E

48 (L) - Ground

: Continuity should not exist.

49 (Y) - Ground

: Continuity should not exist.

LKIA0036E

Unit

Terminal

Resistance value (

Ω

)

(Approx.)

ECM

94 - 86

108 - 132

IPDM E/R

48 - 49

LKIA0037E

CAN SYSTEM (TYPE 2)

LAN-63

[CAN]

LAN

Revision; 2004 April

2003 Murano

CAN SYSTEM (TYPE 2)

PFP:23710

System Description

AKS006P9

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

AKS006PA

SKIA5870E

LAN-64

[CAN]

CAN SYSTEM (TYPE 2)

Revision; 2004 April

2003 Murano

Schematic

AKS006PB

TKWA0927E

CAN SYSTEM (TYPE 2)

LAN-65

[CAN]

LAN

Revision; 2004 April

2003 Murano

Wiring Diagram - CAN -

AKS006PC

TKWA0928E

LAN-66

[CAN]

CAN SYSTEM (TYPE 2)

Revision; 2004 April

2003 Murano

TKWA0929E

CAN SYSTEM (TYPE 2)

LAN-67

[CAN]

LAN

Revision; 2004 April

2003 Murano

TKWA0930E

LAN-68

[CAN]

CAN SYSTEM (TYPE 2)

Revision; 2004 April

2003 Murano

Work Flow

AKS00C4U

When there are no indications of “TRANSMISSION”, “AIR PRESSURE MONITOR” or “METER A/C AMP”
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” and “ABS” displayed on CONSULT-II.

Print all the data of “CAN DIAG SUPPORT MNTR” for “ENGINE”, “TRANSMISSION”, “AIR PRESSURE
MONITOR”, “BCM”, “METER A/C AMP” and “ABS” 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-70, "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-

70, "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 integrated display system. Refer to

AV-110, "CAN Communication

Line Check"

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

LAN-70, "CHECK SHEET"

Mark the “NG” or “UNKWN” item of the check sheet table with “v” from the result of CAN DIAG MONITOR
check sheet. Refer to

LAN-70, "CHECK SHEET"

PKIA2093E

PKIA8260E

PKIA8343E

CAN SYSTEM (TYPE 2)

LAN-69