Nissan Murano Z50 (2007 year). Manual - part 122

 

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Nissan Murano Z50 (2007 year). Manual - part 122

 

 

GW-76

REAR WINDOW DEFOGGER

Revision: 2006 July

2007 Murano

With power and ground supplied, rear window defogger filaments heat and defog the rear window and door
mirror defogger filaments heat and defog the mirror. 

CAN Communication System Description

NIS001BZ

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

NIS001C0

Refer to 

LAN-49, "CAN System Specification Chart"

REAR WINDOW DEFOGGER

GW-77

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Revision: 2006 July

2007 Murano

Schematic

NIS001C1

TIWB0802E

GW-78

REAR WINDOW DEFOGGER

Revision: 2006 July

2007 Murano

Wiring Diagram — DEF — 

NIS001C2

TIWB0177E

REAR WINDOW DEFOGGER

GW-79

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Revision: 2006 July

2007 Murano

TIWB0803E

GW-80

REAR WINDOW DEFOGGER

Revision: 2006 July

2007 Murano

TIWB0804E

REAR WINDOW DEFOGGER

GW-81

C

D

E

F

G

H

J

K

L

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B

GW

Revision: 2006 July

2007 Murano

TIWB0805E

GW-82

REAR WINDOW DEFOGGER

Revision: 2006 July

2007 Murano

Terminal and Reference Value for BCM

NIS001C3

Terminal and Reference Value for IPDM E/R

NIS001C4

Termi-

nal

Wire 

color

Signal name

Signal 

input/

output

Condition

Voltage (V)

(Approx.)

Ignition 

switch

Operation or condition

9

G/W

Rear window defogger 
switch signal

Input

ON

When rear window defogger switch is pressed.

0

When rear window defogger switch is OFF.

5

38

R

Ignition switch ON or 
START

Input

ON

Ignition switch (ON or START position)

Battery voltage

39

L

CAN  H

Input/

Output

—

—

—

40

Y

CAN  L

Input/

Output

—

—

—

42

GR

Battery power supply

Input

OFF

—

Battery voltage

52

B

Ground (Power)

—

ON

—

0

55

W/B

Power source (Fus-
ible link)

Input

OFF

—

Battery voltage

Termi-

nal

Wire 

color

Item

Signal 

input/

output

Condition

Voltage (V)

(Approx.)

Ignition 

switch

Operation or condition

5

W

Battery power supply

Output

OFF

—

Battery voltage

6

L

Battery power supply

Output

OFF

—

Battery voltage

38

B

Ground (Power)

—

ON

—

0

48

L

CAN H

Input/

Output

—

—

—

49

Y

CAN L

Input/

Output

—

—

—

52

G/R

Rear window defog-
ger relay control sig-
nal

Input

ON

When rear window defogger switch is ON.

0

When rear window defogger switch is OFF.

Battery voltage

60

B

Ground (Signal) 

—

ON

—

0

REAR WINDOW DEFOGGER

GW-83

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Revision: 2006 July

2007 Murano

CONSULT-II Function (BCM)

NIS001C5

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

CONSULT-II START PROCEDURE

Refer to

GI-37, "CONSULT-II Start Procedure"

DATA MONITOR
Display Item List

ACTIVE TEST
Display Item List

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.

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.

GW-84

REAR WINDOW DEFOGGER

Revision: 2006 July

2007 Murano

Work Flow

NIS001C6

1.

Check the symptom and customer's requests.

2.

Understand the outline of system. Refer to 

GW-74, "System Description"

 .

3.

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

GW-84,

"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

NIS001C7

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. Check BCM power supply and ground circuit

GW-85

2. Check IPDM E/R auto active test

PG-21

3. Check rear window defogger switch circuit

GW-86

4. Check rear window defogger power supply circuit

GW-87

5. Replace IPDM E/ R

PG-28

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

1. Check BCM power supply and ground circuit

GW-85

2. Perform IPDM E/R auto active test

PG-21

3. Check rear window defogger switch circuit

GW-86

4. Check rear window defogger power supply circuit

GW-87

5. Check rear window defogger circuit

GW-89

6. Check filament

GW-94

7. Replace IPDM E/ R

PG-28

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

1. Check rear window defogger circuit

GW-89

2. Check filament

GW-94

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

Check door mirror defogger power supply circuit

GW-90

Driver side door mirror defogger does not operate.

Check driver side door mirror defogger circuit

GW-91

Passenger side door mirror defogger does not operate.

Check passenger side door mirror  defogger circuit

GW-92

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

Check rear window defogger signal

GW-93

REAR WINDOW DEFOGGER

GW-85

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Revision: 2006 July

2007 Murano

Check BCM Power Supply and Ground Circuit 

NIS001C8

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-13, "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-74, "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

GW-86

REAR WINDOW DEFOGGER

Revision: 2006 July

2007 Murano

Check Rear Window Defogger Switch Circuit

NIS001C9

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

REAR WINDOW DEFOGGER

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2007 Murano

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.

Check Rear Window Defogger Power Supply Circuit

NIS001CA

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-74, "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

GW-88

REAR WINDOW DEFOGGER

Revision: 2006 July

2007 Murano

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

REAR WINDOW DEFOGGER

GW-89

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Revision: 2006 July

2007 Murano

Rear Window Defogger Circuit Check

NIS001CB

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-94, "Check Filament"

●

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

GW-90

REAR WINDOW DEFOGGER

Revision: 2006 July

2007 Murano

Check Door Mirror Defogger Power Supply Circuit 

NIS001CC

1. 

CHECK FUSE 

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

GW-74, "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

REAR WINDOW DEFOGGER

GW-91

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Revision: 2006 July

2007 Murano

4. 

CHECK HARNESS CONTINUITY 

1.

Turn ignition switch OFF.

2.

Disconnect fuse block (J/B) and door mirror connector.

3.

Check continuity between fuse block (J/B) connector M2 terminal 5B and door mirror connector D2 (driver
side) or D32 (passenger side) terminal 6.

OK or NG

OK

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

NG

>> Repair or replace harness.

Check Driver Side Door Mirror Defogger Circuit

NIS001CD

1. 

CHECK POWER SUPPLY CIRCUIT 

1.

Turn ignition switch OFF.

2.

Disconnect door mirror (driver side) connector. 

3.

Turn ignition switch ON.

4.

Check voltage between door mirror (driver side) connector and ground.

OK or NG

OK

>> GO TO 2.

NG

>> Repair or replace harness.

2. 

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check continuity between door mirror (driver side) connector D2
terminal 5 and ground.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace harness.

5B (L/B) – 6 (L/B)

: Continuity should exist.

PIIB4188E

Connector

Terminal (Wire color)

Condition

Voltage (V)

(Approx.)

(+)

(–)

D2

6 (L/B)

Ground

Rear window defogger 
switch ON

 Battery voltage

Rear window defogger  
switch OFF

0

PIIB4190E

5 (B) – Ground

: Continuity should exist.

PIIB4189E

 

 

 

 

 

 

 

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