Nissan Murano Z50 (2005 year). Manual - part 146

 

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Nissan Murano Z50 (2005 year). Manual - part 146

 

 

GW-78

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Revision: 2005 August

2005 Murano

CAN Communication System Description

AIS003KN

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.

CAN Communication Unit

AIS004UP

Refer to 

LAN-29, "CAN Communication Unit"

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Schematic – DEF – 

AIS002IE

TIWB0176E

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Wiring Diagram –DEF– 

AIS002IF

TIWB0177E

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TIWB0178E

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TIWA0511E

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TIWB0179E

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Terminal and Reference Value for BCM

AIS002IG

Terminal and Reference Value for IPDM E/R

AIS002IH

Terminal

Wire color

Item

Condition

Voltage (V)

(Approx.)

9

G/W

Rear window defogger 
switch signal

When rear window defogger switch is pressed.

0

When rear window defogger switch is OFF.

5

38

R

Ignition switch ON or START

Ignition switch (ON or START position)

Battery voltage

39

L

CAN  H

—

—

40

Y

CAN  L

—

—

42

GR

Battery power supply

—

Battery voltage

52

B

Ground (Power)

—

0

55

W/B

Power source (Fusible link)

—

Battery voltage

Terminal

Wire color

Item

Condition

Voltage (V)

(Approx.)

5

W

Battery power supply

—

Battery voltage

6

L

Battery power supply

—

Battery voltage

38

B

Ground (Power)

—

0

48

L

CAN H

—

—

49

Y

CAN L

—

—

52

G/R

Rear window defogger relay 
control signal

When rear window defogger switch is ON.

0

When rear window defogger switch is OFF.

Battery voltage

60

B

Ground (Signal) 

—

0

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CONSULT-II Function (BCM)

AIS003KV

CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.

CONSULT-II BASIC OPERATION PROCEDURE

CAUTION:

If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.

1.

Turn ignition switch “OFF”.

2.

Connect “CONSULT-II” and CONSULT-II CONVERTER to data
link connector.

3.

Turn ignition switch “ON”.

4.

Touch “START (NISSAN BASED VHCL)”.

5.

Touch “BCM”.
If  “BCM” is not indicated, go to 

GI-39

 , “CONSULT-II Date Link

Connector (DLC) Circuit”

6.

Touch “REAR DEFOGGER”.

BCM diagnostic test item

Check item diagnostic test mode

Content

REAR DEFOGGER

Data monitor

Displays the input data of BCM in real time.

Active test

Gives a drive signal to a load to check the operation.

PIIA1095E

BCIA0029E

BCIA0030E

LIIA0153E

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7.

Select diagnosis mode,“DATA  MONITOR” and “ACTIVE TEST”
are available.

DATA MONITOR
Display Item List

ACTIVE TEST
Display Item List

BCIA0031E

Monitor item “Operation”

Content

REAR DEF SW

“ON/OFF”

Displays “Press (ON)/others (OFF)” status determined with the rear window defogger 
switch.

IGN ON SW

“ON/OFF”

Displays “IGN (ON)/OFF” status determined with the ignition switch signal.

Test item

Content

REAR DEFOGGER

Gives a drive signal to the rear window defogger relay to activate it.

REAR WINDOW DEFOGGER

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Work Flow

AIS002II

1.

Check the symptom and customer's requests.

2.

Understand the outline of system. Refer to 

GW-75, "System Description"

  .

3.

According to the trouble diagnosis chart, repair or replace the cause of the malfunction. Refer to 

GW-87,

"Trouble Diagnoses Symptom Chart"

  .

4.

Does rear window defogger operate normally? YES: GO TO 5, NO: GO TO 3.

5.

INSPECTION END.

Trouble Diagnoses Symptom Chart

AIS002IK

Make sure other systems using the signal of the following systems operate normally.

Symptom

Diagnoses / Service procedure

Refer to page

Rear window defogger and door mirror defogger do not 
operate.  (With door mirror defogger)

1. BCM power supply and ground circuit check

GW-88

2. IPDM E/R auto active test check

PG-23

3. Rear window defogger switch circuit check

GW-89

4. Rear window defogger power supply circuit check

GW-90

5. Replace IPDM E/ R

PG-29

Rear window defogger does not operate. 
(Without door mirror defogger)

1. BCM power supply and ground circuit check

GW-88

2. IPDM E/R auto active test check

PG-23

3. Rear window defogger switch circuit check

GW-89

4. Rear window defogger power supply circuit check

GW-90

5. Rear window defogger circuit check

GW-92

6. Filament check

GW-97

7. Replace IPDM E/ R

PG-29

Rear window defogger does not operate but both of door 
mirror defogger operate.(With door mirror defogger)

1. Rear window defogger circuit check

GW-92

2. Filament check

GW-97

Both of door mirror defogger does not operated but rear 
window defogger operate. (With door mirror defogger)

Door mirror defogger power supply circuit check

GW-93

Driver side door mirror defogger does not operate.

Driver side door mirror defogger circuit check

GW-94

Passenger side door mirror defogger does not operate.

Passenger side door mirror  defogger circuit check

GW-95

Rear window defogger switch does not light, and rear win-
dow defogger is not displayed on the display. 
But rear window defogger operates. 

Rear window defogger signal check

GW-96

GW-88

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BCM Power Supply and Ground Circuit Check

AIS0034Z

First perform the “SELF-DIAG RESULTS” in “BCM” with CONSULT-II, then perform the each trouble
diagnosis of malfunction system indicated “SELF-DIAG RESULTS” of “BCM”. Refer to 

BCS-15, "CAN

Communication Inspection Using CONSULT-II (Self-Diagnosis)"

 .

1. 

CHECK FUSE 

●

Check 10A fuse [No.1, located in fuse block (J/B)]

●

Check 10A fuse [No.18, located in fuse block (J/B)]

●

Check 50A fusible link (letter F   located in the fuse and fusible link box)

NOTE:
Refer to 

GW-75, "Component Parts and Harness Connector Location"

 .

OK or NG

OK

>> GO TO 2.

NG

>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse. Refer to 

PG-

3, "POWER SUPPLY ROUTING CIRCUIT"

2. 

CHECK POWER SUPPLY CIRCUIT

1.

Turn ignition switch ON.

2.

Check voltage between BCM connector M34, M35 terminals 38, 42, 55 and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Check BCM power supply circuit for open or short.

3. 

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector.

3.

Check continuity between BCM connector M35 terminals 52 and ground.

OK or NG

OK

>> BCM power supply and ground circuit are OK.

NG

>> Check BCM ground circuit for open or short.

38 (R) – Ground

: Battery voltage

42 (GR) – Ground

: Battery voltage

55 (W/B) – Ground

: Battery voltage

PIIA6160E

52 (B) – Ground

: Continuity should exist.

PIIA9131E

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Rear Window Defogger Switch Circuit Check

AIS002IL

1. 

CHECK REAR WINDOW DEFOGGER SWITCH OPERATION 

 With CONSULT-II

Check (“REAR DEF SW”, “IGN ON SW”) in DATA MONITOR mode
with CONSULT-II.

 With out CONSULT-II

1.

Turn ignition switch ON.

2.

Check voltage between BCM connector ground.

OK or NG

OK

>> Rear window defogger switch check is OK.

NG

>> GO TO 2.

2. 

CHECK HARNESS CONTINUITY

1.

Turn ignition switch OFF.

2.

Disconnect BCM and A/C and AV switch connector.

3.

Check continuity between BCM connector M34 terminal 9 and A/C and AV switch connector M48 terminal
16.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace harness.

When rear window defogger switch is turned to ON

REAR DEF SW

: ON

When ignition switch is turned to ON

IGN ON SW

: ON

PIIA2373E

Connector

Terminal (Wire color)

Condition

Voltage (V)

(Approx.)

(+)

(–)

M34

9 (G/W)

Ground

Rear window defogger 
switch is pressed.

0

Rear window defogger 
switch is OFF.

5

PIIA6208E

9 (G/W) – 16(G/W) 

: Continuity should exist.

PIIA9681E

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3. 

CHECK BCM OUTPUT SIGNAL

1.

Connect BCM connector.

2.

Turn ignition switch ON.

3.

Check voltage between BCM connector M34 terminal 9 and
ground.

OK or NG

OK

>> Replace A/C and AV switch.

NG

>> Replace BCM.

Rear Window Defogger Power Supply Circuit Check

AIS002IM

1. 

CHECK FUSE 

●

Check 10A fuse [No.12, located in the fuse block (J/B)]

●

Check 20A fuse (No.75, located in the IPDM E/R)

●

Check 20A fuse (No.80, located in the IPDM E/R)

NOTE:
Refer to 

GW-75, "Component Parts and Harness Connector Location"

 .

OK or NG

OK

>> GO TO 2.

NG

>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse, refer to 

PG-

3, "POWER SUPPLY ROUTING CIRCUIT"

 .

2. 

CHECK POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect rear window defogger relay.

3.

Turn ignition switch ON.

4.

Check voltage between rear window defogger relay connector
B8 terminals 1, 3, 6 and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace harness.

9 (G/W) – Ground

: Approx. 5

PIIA6208E

1 (G) – Ground

: Battery voltage

3 (L) – Ground

: Battery voltage

6 (W) – Ground

: Battery voltage

PIIA4233E

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3. 

CHECK REAR WINDOW DEFOGGER RELAY

Check continuity between rear window defogger terminals 3 and 5, 6 and 7.

OK or NG

OK

>> GO TO 4.

NG

>> Replace rear window defogger relay.

4. 

CHECK GROUND CIRCUIT

1.

Installation rear window defogger relay.

2.

Turn ignition switch ON.

3.

Check voltage between IPDM E/R connector and ground.

OK or NG

OK

>> Rear window defogger power supply circuit check is OK.

NG

>> GO TO 5.

5. 

CHECK HARNESS CONTINUITY

1.

Turn ignition switch OFF.

2.

Disconnect IPDM E/R connector and rear window defogger relay.

3.

Check continuity between IPDM E/R connector E9 terminal 52 and rear window defogger relay connector
B8 terminal 2.

OK or NG

OK

>> Check the condition of the harness and the connector.

NG

>> Repair or replace harness.

Terminal

Condition

Continuity

3

5

12V direct current supply 
between terminals 1 and 2

Yes

No current supply

No

6

7

12V direct current supply 
between terminals 1 and 2

Yes

No current supply

No

SEC202B

Connector

Terminals (Wire color)

Condition

Voltage (V)

(Approx.)

(+)

(-)

E9

52 (G/R)

Ground

When rear window defog-
ger switch ON

0

When rear window defog-
ger switch OFF

Battery 
voltage

PIIA6210E

52 (G/R) – 2 (G/R)

: Continuity should exist.

PIIA6211E

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2005 Murano

Rear Window Defogger Circuit Check

AIS002IN

1. 

CHECK POWER SUPPLY CIRCUIT 

1.

Turn ignition switch OFF.

2.

Disconnect rear window defogger connector.

3.

Turn ignition switch ON.

4.

Check voltage between rear window defogger connector  and ground.

OK or NG

OK

>> GO TO 2.

NG

>> GO TO 3.

2. 

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check continuity between rear window defogger connector D107 terminal 2 and ground.

OK or NG

OK

>> Check filament.  Refer to 

GW-97, "Filament Check"

●

If filament is OK.
Check the condition of the harness and the connector.

●

If filament is NG.
Repair filament.

NG

>> Repair or replace harness.

3. 

CHECK HARNESS CONTINUITY

1.

Turn ignition switch OFF.

2.

Disconnect rear window defogger relay.

3.

Check continuity between rear window defogger relay connector B8 terminal 5 and rear window defogger
connector D97 terminal 1.

OK or NG

OK

>> Check the condition of the harness and the connector.

NG

>> Repair or replace harness rear window defogger relay

and rear window defogger. When there is malfunction
inside back door, replace the back door.

Connector

Terminal (Wire color)

Condition

Voltage (V)

(Approx.)

(+)

(–)

D97

1 (G)

Ground

Rear window defogger 
switch ON.

 Battery voltage

Rear window defogger  
switch OFF.

0

PIIA4234E

2 (B) 

−

 Ground

: Continuity should exist.

PIIA4235E

5 (G) – 1 (G)

: Continuity should exist.

PIIA4236E

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Door Mirror Defogger Power Supply Circuit Check

AIS002IO

1. 

CHECK FUSE 

Check 10A fuse [No. 8, located in the fuse block (J/B)]
NOTE:
Refer to 

GW-75, "Component Parts and Harness Connector Location"

 .

OK or NG

OK

>> GO TO 2.

NG

>> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.  Refer to 

PG-

3, "POWER SUPPLY ROUTING CIRCUIT"

 .

2. 

CHECK POWER SUPPLY CIRCUIT 1

1.

Turn ignition switch ON.

2.

Check voltage between fuse block (J/B) connector and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace harness.

3. 

CHECK POWER SUPPLY CIRCUIT 2

Check voltage between fuse block (J/B) connector and ground.

OK or NG

OK

>> GO TO 4. 

NG

>> Replace fuse block (J/B).

Connector

Terminal (Wire color)

Condition

Voltage (V)

(Approx.)

(+)

(–)

E101

2C (G)

Ground

Rear window defogger 
switch ON

 Battery voltage

Rear window defogger 
switch OFF

0

PIIA2388E

Connector

Terminal (Wire color)

Condition

Voltage (V)

(Approx.)

(+)

(–)

M2

5B (L/B)

Ground

Rear window defogger 
switch ON

 Battery voltage

Rear window defogger 
switch OFF

0

PIIA2386E

 

 

 

 

 

 

 

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