Nissan Murano Z50 (2003 year). Manual — part 154

LAN-78

[CAN]

CAN SYSTEM (TYPE 2)

Revision; 2004 April

2003 Murano

Case 7

Check data link connector circuit. Refer to

LAN-87, "Data Link Connector Circuit Check"

.

PKIB0444E

SKIA5124E

CAN SYSTEM (TYPE 2)

LAN-79

[CAN]

C

D

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LAN

Revision; 2004 April

2003 Murano

Case 8

Check BCM circuit. Refer to

LAN-88, "BCM Circuit Check"

.

PKIB0445E

SKIA5125E

LAN-80

[CAN]

CAN SYSTEM (TYPE 2)

Revision; 2004 April

2003 Murano

Case 9

Check unified meter and A/C amp. circuit. Refer to

LAN-88, "Unified Meter and A/C Amp. Circuit Check"

.

PKIB0446E

SKIA5126E

CAN SYSTEM (TYPE 2)

LAN-81

[CAN]

C

D

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LAN

Revision; 2004 April

2003 Murano

Case 10

Check ABS actuator and electric unit (control unit) circuit. Refer to

LAN-89, "ABS Actuator and Electric Unit

(Control Unit) Circuit Check"

.

PKIB0447E

SKIA5127E

LAN-82

[CAN]

CAN SYSTEM (TYPE 2)

Revision; 2004 April

2003 Murano

Case 11

Check IPDM E/R circuit. Refer to

LAN-89, "IPDM E/R Circuit Check"

.

Case 12

Check CAN communication circuit. Refer to

LAN-90, "CAN Communication Circuit Check"

.

PKIB0448E

SKIA5128E

PKIB0449E

CAN SYSTEM (TYPE 2)

LAN-83

[CAN]

C

D

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LAN

Revision; 2004 April

2003 Murano

Case 13

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

LAN-90, "CAN Communication Cir-

cuit Check"

.

Case 14

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

LAN-93, "IPDM E/R Ignition Relay Cir-

cuit Check"

.

PKIB0450E

PKIB0451E

LAN-84

[CAN]

CAN SYSTEM (TYPE 2)

Revision; 2004 April

2003 Murano

Circuit Check Between TCM and Data Link Connector

AKS006PE

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-68, "Work Flow"

.

NG

>> Repair harness.

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

AKS006PF

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

CAN SYSTEM (TYPE 2)

LAN-85

[CAN]

C

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LAN

Revision; 2004 April

2003 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-68, "Work Flow"

.

NG

>> Repair harness.

ECM Circuit Check

AKS006PG

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

PKIA0816E

LAN-86

[CAN]

CAN SYSTEM (TYPE 2)

Revision; 2004 April

2003 Murano

TCM Circuit Check

AKS006PH

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 low tire pressure

warning control unit.

Low Tire Pressure Warning Control Unit Circuit Check

AKS006PI

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.

5 (L) - 6 (Y)

: Approx. 54 - 66

Ω

PKIA0817E

9 (L) - 21 (Y)

: Approx. 54 - 66

Ω

PKIA2082E

CAN SYSTEM (TYPE 2)

LAN-87

[CAN]

C

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LAN

Revision; 2004 April

2003 Murano

Display Unit Circuit Check

AKS006PJ

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.

Data Link Connector Circuit Check

AKS006PK

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-68, "Work Flow"

.

NG

>> Repair harness between data link connector and BCM.

14 (L) - 16 (Y)

: Approx. 54 - 66

Ω

SKIA5018E

6 (L) - 14 (Y)

: Approx. 54 - 66

Ω

PKIA2077E

LAN-88

[CAN]

CAN SYSTEM (TYPE 2)

Revision; 2004 April

2003 Murano

BCM Circuit Check

AKS006PL

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 M37 termi-
nals 70 (L) and 71 (Y).

OK or NG

OK

>> Replace BCM. Refer to

BCS-36, "Removal and Installa-

tion of BCM"

.

NG

>> Repair harness between BCM and data link connector.

Unified Meter and A/C Amp. Circuit Check

AKS006PM

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.

70 (L) - 71 (Y)

: Approx. 54 - 66

Ω

LKIA0028E

1 (L) - 11 (Y)

: Approx. 54 - 66

Ω

PKIA2078E

CAN SYSTEM (TYPE 2)

LAN-89

[CAN]

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LAN

Revision; 2004 April

2003 Murano

ABS Actuator and Electric Unit (Control Unit) Circuit Check

AKS006PN

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

AKS006PO

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).

11 (L) - 15 (Y)

: Approx. 54 - 66

Ω

SKIA5019E

48 (L) - 49 (Y)

: Approx. 108 - 132

Ω

LKIA0030E

LAN-90

[CAN]

CAN SYSTEM (TYPE 2)

Revision; 2004 April

2003 Murano

CAN Communication Circuit Check

AKS006PP

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 and harness side).

●

ECM

●

TCM

●

Low tire pressure warning control unit

●

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.

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

–

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 harness connector M9.

6 (L) - 14 (Y)

: Continuity should not exist.

PKIA2077E

CAN SYSTEM (TYPE 2)

LAN-91

[CAN]

C

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LAN

Revision; 2004 April

2003 Murano

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 harness connector M9.

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 (L) - Ground

: Continuity should not exist.

14 (Y) - Ground

: Continuity should not exist.

PKIA2079E

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-92

[CAN]

CAN SYSTEM (TYPE 2)

Revision; 2004 April

2003 Murano

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.

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.

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.

LKIA0030E

CAN SYSTEM (TYPE 2)

LAN-93

[CAN]

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LAN

Revision; 2004 April

2003 Murano

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-93, "ECM/IPDM E/R INTERNAL CIRCUIT INSPECTION"

.

OK or NG

OK

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

LAN-68, "Work Flow"

.

NG

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

IPDM E/R Ignition Relay Circuit Check

AKS006PQ

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

AKS006PR

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.

LKIA0036E

Unit

Terminal

Resistance value (

Ω

)

(Approx.)

ECM

94 - 86

108 - 132

IPDM E/R

48 - 49

LKIA0037E