Murano Cross Cabriolet Z51 (2012 year). Manual - part 27

WATER OUTLET AND WATER PIPING

CO-27

< REMOVAL AND INSTALLATION >

C

D

E

F

G

H

I

J

K

L

M

A

CO

N

P

O

WATER OUTLET AND WATER PIPING

Exploded View

INFOID:0000000007565999

Removal and Installation

INFOID:0000000007566000

REMOVAL

1.

Remove air duct (inlet), radiator core support covers (RH and LH), air cleaner cases (upper and lower)
with mass air flow sensor and air duct assembly. Refer to 

EM-26, "Exploded View"

.

2.

Remove engine cover. Refer to 

EM-24, "Exploded View"

.

3.

Drain engine coolant from radiator drain plug at the bottom of radiator, and from water drain plug at the
front of cylinder block. Refer to 

CO-8, "Draining"

 and 

EM-75, "Setting"

.

CAUTION:

1.

Heater hose

2.

Clamp

3.

Water hose

4.

Clamp

5.

Water outlet

6.

Gasket

7.

Gasket

8.

Water connector

9.

O-ring

10. Water bypass pipe

11.

Clamp

12.

Water hose

13. Heater pipe

14.

Water hose

15.

Heater hose

16. Engine coolant temperature sensor

17.

Clamp

18.

Radiator hose (upper)

A.

To heater core

B.

To electric throttle control actuator

C.

To oil cooler

D.

To radiator

 : N·m (kg-m, ft-lb)

 : N·m (kg-m, in-lb)

 : Always replace after every disassembly.

JPBIA1691GB

Revision: 2013 February

2012 Murano CrossCabriolet

CO-28

< REMOVAL AND INSTALLATION >

WATER OUTLET AND WATER PIPING

• Perform this step when the engine is cold.
• Never spill engine coolant on drive belt.

4.

Remove battery and battery tray. Refer to 

PG-108, "Removal and Installation"

.

5.

Remove CVT fluid charging pipe and CVT fluid level gauge. Refer to 

TM-157, "Exploded View"

.

6.

Move CVT control cable aside. Refer to 

TM-145, "Exploded View"

.

7.

Remove vacuum tube (front) mounting bolt from water outlet. Refer to 

EM-67, "Exploded View"

.

8.

Remove radiator hose (upper) from water outlet.

9.

Remove water hoses and heater hoses.

10. Disconnect harness connectors, and move harness to aside.
11. Remove engine coolant temperature sensor if necessary.

CAUTION:

Never damage engine coolant temperature sensor.

12. Remove water outlet, heater pipe, water bypass pipe and water connector.

INSTALLATION

Note the following, and install in the reverse order of removal.

CAUTION:

Do not reuse O-rings.
• Securely insert each hose, and install clamp at a position where it does not interfere with the pipe bulge.
• When inserting water bypass pipe and heater pipe into water connector, apply neutral detergent to O-ring.

Inspection

INFOID:0000000007566001

INSPECTION AFTER INSTALLATION

• Check for leakage of engine coolant using the radiator cap tester adapter (commercial service tool) and the

radiator cap tester (commercial service tool). Refer to 

CO-8, "Inspection"

.

• Start and warm up the engine. Visually check that there is no leakage of engine coolant.

Revision: 2013 February

2012 Murano CrossCabriolet

SERVICE DATA AND SPECIFICATIONS (SDS)

CO-29

< SERVICE DATA AND SPECIFICATIONS (SDS) 

C

D

E

F

G

H

I

J

K

L

M

A

CO

N

P

O

SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)

Periodical Maintenance Specification

INFOID:0000000007566002

ENGINE COOLANT CAPACITY (APPROXIMATE)

Unit: 

 (US qt, lmp qt)

Radiator

INFOID:0000000007566003

Unit: kPa (kg/cm

2

, psi)

Thermostat

INFOID:0000000007566004

Standard

Engine coolant capacity (With reservoir tank at “MAX” level)

9.0 (9-1/2, 7-7/8)

Reservoir tank

0.8 (7/8, 3/4)

Cap relief pressure

Standard

122.3 - 151.7 (1.2 - 1.5, 17.7 - 22.0)

Limit

108 (1.1, 15.6)

Leakage test pressure

156 (1.59, 22.6)

Valve opening temperature

80.5 - 83.5

°

C (177 - 182

°

F)

Maximum valve lift

8.6 mm/95

°

C (0.339 in/203

°

F)

Valve closing temperature

77

°

C (171

°

F)

Revision: 2013 February

2012 Murano CrossCabriolet

DEF-1

DRIVER CONTROLS

C

D

E

F

G

H

I

J

K

M

SECTION 

DEF

A

B

DEF

N

O

P

CONTENTS

DEFOGGER

PRECAUTION ...............................................

3

PRECAUTIONS ...................................................

3

Precaution for Supplemental Restraint System 
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ...................................................................

3

Precaution for Battery Service  ..................................

3

Service Procedure Precautions for Models with a 
Pop-up Roll Bar .........................................................

3

SYSTEM DESCRIPTION  ..............................

4

COMPONENT PARTS  ........................................

4

Component Parts Location ........................................

4

Component Description .............................................

4

SYSTEM ..............................................................

5

System Diagram ........................................................

5

System Description  ...................................................

5

DIAGNOSIS SYSTEM (BCM)  .............................

6

COMMON ITEM  ...........................................................

6

COMMON ITEM : CONSULT Function (BCM - 
COMMON ITEM) .......................................................

6

REAR WINDOW DEFOGGER .....................................

7

REAR WINDOW DEFOGGER : CONSULT Func-
tion (BCM - REAR DEFOGGER)  ..............................

7

DIAGNOSIS SYSTEM (SOFT TOP CONTROL 
UNIT) ...................................................................

9

CONSULT Function  ..................................................

9

ECU DIAGNOSIS INFORMATION ..............

13

BCM ....................................................................

13

List of ECU Reference  ............................................

13

SOFT TOP CONTROL UNIT  ..............................

14

List of ECU Reference  ............................................

14

WIRING DIAGRAM  ......................................

15

REAR WINDOW DEFOGGER SYSTEM  ..........

15

Wiring Diagram ........................................................

15

BASIC INSPECTION  ...................................

16

DIAGNOSIS AND REPAIR WORK FLOW  .......

16

Work Flow ................................................................

16

DTC/CIRCUIT DIAGNOSIS  .........................

17

REAR WINDOW DEFOGGER SWITCH  ...........

17

Component Function Check  ....................................

17

Diagnosis Procedure  ...............................................

17

REAR WINDOW DEFOGGER RELAY  .............

18

Component Function Check  ....................................

18

Diagnosis Procedure  ...............................................

18

Component Inspection .............................................

19

SOFT TOP CONTROL UNIT .............................

20

Component Function Check  ....................................

20

Diagnosis Procedure  ...............................................

20

REAR WINDOW DEFOGGER  ..........................

22

Component Function Check  ....................................

22

Diagnosis Procedure  ...............................................

22

Component Inspection .............................................

23

DOOR MIRROR DEFOGGER ...........................

24

Component Function Check  ....................................

24

Diagnosis Procedure  ...............................................

24

DRIVER SIDE DOOR MIRROR DEFOGGER ...

25

Component Function Check  ....................................

25

Diagnosis Procedure  ...............................................

25

Component Inspection .............................................

26

PASSENGER SIDE DOOR MIRROR DEFOG-
GER ...................................................................

27

Component Function Check  ....................................

27

Diagnosis Procedure  ...............................................

27

Component Inspection .............................................

28

Revision: 2013 February

2012 Murano CrossCabriolet

DEF-2

SYMPTOM DIAGNOSIS  .............................

29

REAR WINDOW DEFOGGER AND DOOR 
MIRROR DEFOGGERS DO NOT OPERATE ...

29

Diagnosis Procedure  ..............................................

29

REAR WINDOW DEFOGGER DOES NOT 
OPERATE BUT BOTH DOOR MIRROR DE-
FOGGERS OPERATE  .......................................

30

Diagnosis Procedure  ..............................................

30

DOOR MIRROR DEFOGGER DOES NOT OP-
ERATE BUT REAR WINDOW DEFOGGER 
OPERATE ..........................................................

31

BOTH SIDES .............................................................

31

BOTH SIDES : Diagnosis Procedure  .....................

31

DRIVER SIDE ............................................................

31

DRIVER SIDE : Diagnosis Procedure  ....................

31

PASSENGER SIDE  ...................................................

31

PASSENGER SIDE : Diagnosis Procedure ............

31

ON IS NOT DISPLAYED WHEN PRESSING 
REAR WINDOW DEFOGGER SWITCH BUT 
IT OPERATES  ...................................................

32

Diagnosis Procedure ...............................................

32

REAR WINDOW DEFOGGER INDICATOR 
DOES NOT ILLUMINATE ..................................

33

Diagnosis Procedure ...............................................

33

REMOVAL AND INSTALLATION ..............

34

FILAMENT .........................................................

34

Inspection and Repair  .............................................

34

CONDENSER ....................................................

36

Removal and Installation .........................................

36

Revision: 2013 February

2012 Murano CrossCabriolet

PRECAUTIONS

DEF-3

< PRECAUTION >

C

D

E

F

G

H

I

J

K

M

A

B

DEF

N

O

P

PRECAUTION

PRECAUTIONS

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT 
PRE-TENSIONER"

INFOID:0000000007566484

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the “SRS AIR BAG” and “SEAT BELT” of this
Service Manual.

WARNING:

Always observe the following items for preventing accidental activation.
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision that would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see “SRS AIR BAG”.

• Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-

vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

Always observe the following items for preventing accidental activation.
• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the

ignition ON or engine running, never use air or electric power tools or strike near the sensor(s) with
a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.

• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the

battery, and wait at least 3 minutes before performing any service.

Precaution for Battery Service

INFOID:0000000007805655

Before disconnecting the battery, lower both the driver and passenger windows. This will prevent any interfer-
ence between the window edge and the vehicle when the door is opened/closed. During normal operation, the
window slightly raises and lowers automatically to prevent any window to vehicle interference. The automatic
window function will not work with the battery disconnected.

Service Procedure Precautions for Models with a Pop-up Roll Bar

INFOID:0000000007805656

WARNING:

Always observe the following items for preventing accidental activation.
• Risk of passenger injury or death may increase if the pop-up roll bar does not deploy during a roll

over collision. In order to reduce the chance of an incident where the pop-up roll bar is inoperative,
all maintenance must be performed by a NISSAN or INFINITI dealer.

• Before removing and installing the pop-up roll bar component parts and harness, always turn the

ignition switch OFF, disconnect the battery negative terminal, and wait for 3 minutes or more. (The
purpose of this operation is to discharge electricity that is accumulated in the auxiliary power supply
circuit in the air bag diagnosis sensor unit.)

• When repairing, removing, and installing a pop-up roll bar, always refer to SRS AIR BAG and SRS

AIR BAG CONTROL warnings in the Service Manual.

Revision: 2013 February

2012 Murano CrossCabriolet

DEF-4

< SYSTEM DESCRIPTION >

COMPONENT PARTS

SYSTEM DESCRIPTION

COMPONENT PARTS

Component Parts Location

INFOID:0000000007566485

Component Description

INFOID:0000000007566486

1.

Rear window defogger connector

2.

Door mirror (door mirror defogger)

3.

Rear window defogger switch
(built-in multifunction switch)

4.

AV control unit
Refer to 

AV-10, "Component Parts Lo-

cation"

 (without navigation) or 

AV-126, 

"Component Parts Location"

 (with nav-

igation)

5.

IPDM E/R 
Refer to 

PCS-4, "Component Parts 

Location"

6.

BCM
Refer to 

BCS-4, "BODY CONTROL 

SYSTEM : Component Parts Loca-
tion"

7.

Soft top control unit
Refer to 

RF-9, "Component Parts Lo-

cation"

8.

Condenser

A.

View with trunk front finisher removed

JMLIA2207ZZ

BCM

• Controls the rear window defogger relay with the operation of rear window defogger switch.
• Transmits rear window defogger control signal to IPDM E/R.
• Performs the timer control of rear window defogger.

Rear window defogger relay

• Operates rear window defogger and door mirror defogger with BCM control.

IPDM E/R

• Transmits rear window defogger control signal to AV control unit via CAN communication.

Multifunction switch
(Rear window defogger 
switch)

• The rear window defogger switch is installed.
• Turns the indicator lamp ON when detecting the operation of rear window defogger.

AV control unit

• AV control unit transmits rear window defogger switch signal to BCM via CAN communication.
• AV control unit transmits rear window defogger feedback signal to multifunction switch.
• Displays rear window defogger ON to the display when detecting the operation of rear window 

defogger.

Soft top control unit

• Soft top control unit detects roof state and controls rear window defogger operation.

Rear window defogger

• Heats the heating wire with the power supply from soft top control unit to prevent the rear win-

dow from fogging up.

Door mirror defogger

• Heats the heating wire with the power supply from the rear window defogger relay to prevent 

the door mirror from fogging up.

Revision: 2013 February

2012 Murano CrossCabriolet

SYSTEM

DEF-5

< SYSTEM DESCRIPTION >

C

D

E

F

G

H

I

J

K

M

A

B

DEF

N

O

P

SYSTEM

System Diagram

INFOID:0000000007566487

System Description

INFOID:0000000007566488

OPERATION DESCRIPTION

• Turn rear window defogger switch ON while ignition switch is ON. Then multifunction switch (rear window

defogger switch) transmits rear window defogger switch signal to AV control unit via AV communication. AV
control unit transmits rear window defogger switch signal to BCM via CAN communication.

• BCM turns rear window defogger relay ON and transmits rear window defogger control signal to IPDM E/R

via CAN communication when rear window defogger switch signal is received.

• Door mirror defoggers are supplied with power and operate when rear window defogger relay turns ON.
• Rear window defogger relay sends power supply to soft top control unit.
• Soft top control unit detects roof state and controls rear window defogger operation.
• IPDM E/R transmits rear window defogger control signal to AV control unit via CAN communication. 
• When receiving the signal, AV control unit indicates rear defogger ON on the display. At the same time, AV

control unit transmits rear window defogger feedback signal to multifunction switch (rear window defogger
switch) via AV communication and illuminates rear window defogger switch indicator.

TIMER FUNCTION

• BCM turns rear window defogger relay ON for approximately 15 minutes when rear window defogger switch

is turned ON. It makes rear window defogger and door mirror defoggers operate.

• Timer is canceled after pressing rear window defogger switch again during timer operation. Then BCM turns

rear window defogger relay OFF. The same operation also occurs during timer operation, if the ignition
switch is turned OFF. 

JMLIA2587GB

Revision: 2013 February

2012 Murano CrossCabriolet

DEF-6

< SYSTEM DESCRIPTION >

DIAGNOSIS SYSTEM (BCM)

DIAGNOSIS SYSTEM (BCM)

COMMON ITEM

COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)

INFOID:0000000007805657

APPLICATION ITEM

CONSULT performs the following functions via CAN communication with BCM.

SYSTEM APPLICATION

BCM can perform the following functions for each system.
NOTE:
It can perform the diagnosis modes except the following for all sub system selection items.

×

: Applicable item

NOTE:

*: This item is displayed, but is not used. 

FREEZE FRAME DATA (FFD)

The BCM records the following vehicle condition at the time a particular DTC is detected, and displays on
CONSULT.

Diagnosis mode

Function Description

Work Support

Changes the setting for each system function.

Self Diagnostic Result

Displays the diagnosis results judged by BCM.

CAN Diag Support Monitor

Monitors the reception status of CAN communication viewed from BCM.

Data Monitor

The BCM input/output signals are displayed.

Active Test

The signals used to activate each device are forcibly supplied from BCM.

Ecu Identification

The BCM part number is displayed.

Configuration

• Read and save the vehicle specification.
• Write the vehicle specification when replacing BCM.

System

Sub system selection item

Diagnosis mode

Work Support

Data Monitor

Active Test

Door lock

DOOR LOCK

×

×

×

Rear window defogger

REAR DEFOGGER

×

×

Warning chime

BUZZER

×

×

Interior room lamp timer

INT LAMP

×

×

×

Exterior lamp

HEAD LAMP

×

×

×

Wiper and washer

WIPER

×

×

×

Turn signal and hazard warning lamps

FLASHER

×

×

×

—

AIR CONDITONER*

• Intelligent Key system
• Engine start system

INTELLIGENT KEY

×

×

×

Combination switch

COMB SW

×

Body control system

BCM

×

NVIS - NATS

IMMU

×

×

Interior room lamp battery saver

BATTERY SAVER

×

×

×

Trunk lid opener system

TRUNK

×

×

Vehicle security system

THEFT ALM

×

×

×

RAP system

RETAINED PWR

×

Signal buffer system

SIGNAL BUFFER

×

×

TPMS

AIR PRESSURE MONITOR

×

×

×

Revision: 2013 February

2012 Murano CrossCabriolet

DIAGNOSIS SYSTEM (BCM)

DEF-7

< SYSTEM DESCRIPTION >

C

D

E

F

G

H

I

J

K

M

A

B

DEF

N

O

P

NOTE:

*: Power supply position shifts to “LOCK” from “OFF”, when ignition switch is in the OFF position, selector lever is in the P position, and
any of the following conditions are met.

• Closing door

• Opening door

• Door is locked using door request switch

• Door is locked using Intelligent Key

The power supply position shifts to “ACC” when the push-button ignition switch (push switch) is pushed at “LOCK”.

REAR WINDOW DEFOGGER

REAR WINDOW DEFOGGER : CONSULT Function (BCM - REAR DEFOGGER)

INFOID:0000000007566490

Data monitor

CONSULT screen item

Indication/Unit

Description

Vehicle Speed

km/h

Vehicle speed of the moment a particular DTC is detected

Odo/Trip Meter

km

Total mileage (Odometer value) of the moment a particular DTC is detected

Vehicle Condition

SLEEP>LOCK

Power position status of 
the moment a particular 
DTC is detected

While turning BCM status from low power consumption mode to 
normal mode (Power supply position is “LOCK”*)

SLEEP>OFF

While turning BCM status from low power consumption mode to 
normal mode (Power supply position is “OFF”.)

LOCK>ACC

While turning power supply position from “LOCK” to “ACC”

ACC>ON

While turning power supply position from “ACC” to “IGN”

RUN>ACC

While turning power supply position from “RUN” to “ACC” (Vehicle 
is stopping and selector lever is except P position.)

CRANK>RUN

While turning power supply position from “CRANKING” to “RUN” 
(From cranking up the engine to run it)

RUN>URGENT

While turning power supply position from “RUN“ to “ACC” (Emer-
gency stop operation)

ACC>OFF

While turning power supply position from “ACC” to “OFF”

OFF>LOCK

While turning power supply position from “OFF” to “LOCK”*

OFF>ACC

While turning power supply position from “OFF” to “ACC”

ON>CRANK

While turning power supply position from “IGN” to “CRANKING”

OFF>SLEEP

While turning BCM status from normal mode (Power supply posi-
tion is “OFF”.) to low power consumption mode

LOCK>SLEEP

While turning BCM status from normal mode (Power supply posi-
tion is “LOCK”*) to low power consumption mode

LOCK

Power supply position is “LOCK”*

OFF

Power supply position is “OFF” (Ignition switch OFF)

ACC

Power supply position is “ACC” (Ignition switch ACC)

ON

Power supply position is “IGN” (Ignition switch ON with engine 
stopped)

ENGINE RUN

Power supply position is “RUN” (Ignition switch ON with engine 
running)

CRANKING

Power supply position is “CRANKING” (At engine cranking)

IGN Counter

0 - 39

The number of times that ignition switch is turned ON after DTC is detected
• The number is 0 when a malfunction is detected now.
• The number increases like 1 

→

 2 

→

 3...38 

→

 39 after returning to the normal condition 

whenever ignition switch OFF 

→

 ON.

• The number is fixed to 39 until the self-diagnosis results are erased if it is over 39.

Revision: 2013 February

2012 Murano CrossCabriolet

DEF-8

< SYSTEM DESCRIPTION >

DIAGNOSIS SYSTEM (BCM)

ACTIVE TEST

Monitor Item

Description

REAR DEF SW

This is displayed even when it is not equipped.

PUSH SW

Indicates [ON/OFF] condition of push switch.

Test Item

Description

REAR DEFOGGER

Rear window defogger operates when “ON” on CONSULT screen is touched.

Revision: 2013 February

2012 Murano CrossCabriolet

DIAGNOSIS SYSTEM (SOFT TOP CONTROL UNIT)

DEF-9

< SYSTEM DESCRIPTION >

C

D

E

F

G

H

I

J

K

M

A

B

DEF

N

O

P

DIAGNOSIS SYSTEM (SOFT TOP CONTROL UNIT)

CONSULT Function

INFOID:0000000007818561

APPLICATION ITEM

CONSULT performs the following functions via CAN communication with soft top control unit.

SELF-DIAG RESULT

Refer to 

RF-63, "DTC Index"

.

Freeze Frame Data

The soft top control unit records the following vehicle condition at the time when the DTC is detected, and dis-
plays on CONSULT.

Diagnosis mode

Function Description

ECU Identification

The soft top control unit part number is displayed.

Self Diagnostic Result

Displays the diagnosis results judged by soft top control unit.

Freeze Frame Data

The soft top control unit records the vehicle condition at the time when 
the DTC is detected, and displays.

Data Monitor

The soft top control unit input/output signals are displayed.

Active Test

The signals used to activate each device are forcibly supplied from soft 
top control unit.

CAN Diag Support Monitor

Monitors the reception status of CAN communication viewed from soft 
top control unit.

CONSULT display

Description

ROOF SW (OPEN)

ON/OFF

OPEN input state of roof open/close switch is displayed.

ROOF SW (CLOSE)

ON/OFF

CLOSE input state of roof open/close switch is displayed.

ROOF LATCHED LH

ON/OFF

Input state of roof striker sensor LH is displayed.

ROOF LATCHED RH

ON/OFF

Input state of roof striker sensor RH is displayed.

F/CENTER LOCK

ON/OFF

Input state of roof latch lock sensor is displayed.

R/RAIL RAISED LH

ON/OFF

Input state of roof status sensor LH is displayed.

R/RAIL LOWERED

ON/OFF

Input state of roof status sensor LH is displayed.

5BOW LOWERED

ON/OFF

Input state of 5th bow status sensor LH is displayed.

5BOW RAISED

ON/OFF

Input state of 5th bow status sensor RH is displayed.

S/LID OPEN LH

ON/OFF

Input state of storage lid status sensor LH is displayed.

STORAGE LID CLOSE LH

ON/OFF

Input state of storage lid status sensor LH is displayed.

SWITCH VALVE 1

ON/OFF

Output state to switching valve 1 is displayed.

SWITCH VALVE 2

ON/OFF

Output state to switching valve 2 is displayed.

SWITCH VALVE 3

ON/OFF

Output state to switching valve 3 is displayed.

SWITCH VALVE 4

ON/OFF

Output state to switching valve 4 is displayed.

PUMP OUT (LH)

ON/OFF

Right rotation output state to hydraulic motor is displayed.

PUMP OUT (RH)

ON/OFF

Left rotation output state to hydraulic motor is displayed.

OUTSIDE FLAP DEPLOYMENT

ON/OFF

Input state of outside flap sensor (deployment switch) is displayed.

OUTSIDE FLAP STORAGE

ON/OFF

Input state of outside flap sensor (storage switch) is displayed.

INSIDE FLAP DEPLOYMENT

ON/OFF

Input state of inside flap sensor (deployment switch) is displayed.

INSIDE FLAP STORAGE

ON/OFF

Input state of inside flap sensor (storage switch) is displayed.

S/LID LOCK OPEN SW

ON/OFF

Input state of storage lid lock assembly (open switch) is displayed.

S/LID LOCK CLOSE SW

ON/OFF

Input state of storage lid lock assembly (close switch) is displayed.

S/LID LOCK HALF LATCH SW

ON/OFF

Input state of storage lid lock assembly (half latch switch) is displayed.

Revision: 2013 February

2012 Murano CrossCabriolet

DEF-10

< SYSTEM DESCRIPTION >

DIAGNOSIS SYSTEM (SOFT TOP CONTROL UNIT)

DATA MONITOR

STORAGE LID DOOR SWITCH

ON/OFF

Input state of storage lid lock assembly (storage lid door switch) is displayed.

OUT FLAP MOTOR RELAY 1

ON/OFF

Input state of outside flap motor relay 1 is displayed.

OUT FLAP MOTOR RELAY 2

ON/OFF

Input state of outside flap motor relay 2 is displayed.

INSIDE FLAP MOTOR RELAY 1

ON/OFF

Input state of inside flap motor relay 1 is displayed.

INSIDE FLAP MOTOR RELAY 2

ON/OFF

Input state of inside flap motor relay 2 is displayed.

STORAGE LID LOCK RELAY 1

ON/OFF

Input state of storage lid lock relay 1 is displayed.

STORAGE LID LOCK RELAY 2

ON/OFF

Input state of storage lid lock relay 2 is displayed.

TONNEAU BOARD SWITCH

ON/OFF

Input state of tonneau board switch is displayed.

TRUNK LID OP/CL STATUS

OPEN/CLOSE

Input state of trunk lid lock assembly (trunk room lamp switch) is displayed.

CONSULT display

Description

CONSULT display

Description

ROOF LATCHED LH

ON/OFF/NG

Input state of roof striker sensor LH is displayed.

ROOF LATCHED RH

ON/OFF/NG

Input state of roof striker sensor RH is displayed.

F/CENTER LOCK

ON/OFF/NG

Input state of roof latch lock sensor is displayed.

R/RAIL RAISED LH

ON/OFF/NG

Input state of roof status sensor LH is displayed.

R/RAIL LOWERED

ON/OFF/NG

Input state of roof status sensor LH is displayed.

5TH BOW LOWERED

ON/OFF/NG

Input state of 5th bow status sensor LH is displayed.

5TH BOW RAISED

ON/OFF/NG

Input state of 5th bow status sensor RH is displayed.

S/LID OPEN LH

ON/OFF/NG

Input state of storage lid status sensor LH is displayed.

STORAGE LID CLOSE LH

ON/OFF/NG

Input state of storage lid status sensor LH is displayed.

SWITCHING VALVE 1

ON/OFF/NG

Output state to switching valve 1 is displayed.

SWITCHING VALVE 2

ON/OFF/NG

Output state to switching valve 2 is displayed.

SWITCHING VALVE 3

ON/OFF/NG

Output state to switching valve 3 is displayed.

SWITCHING VALVE 4

ON/OFF/NG

Output state to switching valve 4 is displayed.

PUMP OUT (RH)

ON/OFF/NG

Right rotation output state to hydraulic motor is displayed.

PUMP OUT (LH)

ON/OFF/NG

Left rotation output state to hydraulic motor is displayed.

OUTSIDE FLAP DEPLOYMENT

ON/OFF/NG

Input state of outside flap sensor (deployment switch) is displayed.

OUTSIDE FLAP STORAGE

ON/OFF/NG

Input state of outside flap sensor (storage switch) is displayed.

INSIDE FLAP DEPLOYMENT

ON/OFF/NG

Input state of inside flap sensor (deployment switch) is displayed.

INSIDE FLAP STORAGE

ON/OFF/NG

Input state of inside flap sensor (storage switch) is displayed.

S/LID LOCK OPEN SW

ON/OFF/NG

Input state of storage lid lock assembly (open switch) is displayed.

S/LID LOCK CLOSE SW

ON/OFF/NG

Input state of storage lid lock assembly (close switch) is displayed.

S/LID LOCK HALF LATCH SW

ON/OFF/NG

Input state of storage lid lock assembly (half latch switch) is displayed.

STORAGE LID DOOR SWITCH

ON/OFF/NG

Input state of storage lid lock assembly (storage lid door switch) is displayed.

OUT FLAP MOTOR RELAY 1

ON/OFF/NG

Input state of outside flap motor relay 1 is displayed.

OUT FLAP MOTOR RELAY 2

ON/OFF/NG

Input state of outside flap motor relay 2 is displayed.

INSIDE FLAP MOTOR RELAY 1

ON/OFF/NG

Input state of inside flap motor relay 1 is displayed.

INSIDE FLAP MOTOR RELAY 2

ON/OFF/NG

Input state of inside flap motor relay 2 is displayed.

STORAGE LID LOCK RELAY 1

ON/OFF/NG

Input state of storage lid lock relay 1 is displayed.

STORAGE LID LOCK RELAY 2

ON/OFF/NG

Input state of storage lid lock relay 2 is displayed.

ROOF SW (OPEN)

ON/OFF

OPEN input state of roof open/close switch is displayed.

ROOF SW (CLOSE)

ON/OFF

CLOSE input state of roof open/close switch is displayed.

SHIFT R SIGNAL

ON/OFF

Input state of shift position (R position) is displayed.

Revision: 2013 February

2012 Murano CrossCabriolet

DIAGNOSIS SYSTEM (SOFT TOP CONTROL UNIT)

DEF-11

< SYSTEM DESCRIPTION >

C

D

E

F

G

H

I

J

K

M

A

B

DEF

N

O

P

ACTIVE TEST

TRUNK OPEN REQUEST SIG

ON/OFF

Input state of trunk open request signal from BCM is displayed.

TRUNK LID OP/CL STATUS

OPEN/CLOSE

Input state of trunk lid lock assembly (trunk room lamp switch) is displayed.

THER PROTEC PUMP

OK/NG

Non-operation state of thermo protection (hydraulic pump) is displayed.

THER PROTEC RCU

OK/NG

Non-operation state of thermo protection (soft top control unit) is displayed.

PWR COND RCU

OK/NG

Diagnosis result of power supply (soft top control unit) is displayed.

PWR COND P/W

OK/NG

Diagnosis result of power supply (front power window) is displayed.

POWER COND REAR P/W

OK/NG

Diagnosis result of power supply (rear power window) is displayed.

LOCAL COMM 1

NG/SLEEP/NG

State of serial link 1 is displayed.

LOCAL COMM 2

NG/SLEEP/NG

State of serial link 2 is displayed.

REAR DEF OUT

OK/NG

Output state to rear window defogger is displayed.

TONNEAU BOARD SWITCH

ON/OFF

Input state of tonneau board switch is displayed.

P/W OP REQ SW SIG

ON/OFF

Input state of power window open signal from request switch is displayed.

PROHIBIT P/W UP

ON/OFF

Output state to power window operation prohibition signal is displayed.

IGN ON SIG (BCM)

ON/OFF

Receiving state of ignition ON signal from BCM is displayed.

RF OP REQ SW SIG

ON/OFF

Input state of soft top open signal from request switch is displayed.

CONSULT display

Description

CONSULT display

Operation/condition

Description

Item

Indication

ROOF LATCHED LH/RH

LOCK

Soft top is fully closed posi-
tion.

Roof lock assembly performs lock operation.

UNLOCK

Roof lock assembly performs unlock operation.

STORAGE LID

OPEN

Storage lid is neutral posi-
tion.

Storage lid performs open operation.

CLOSE

Storage lid performs close operation.

SOFT TOP SYSTEM

UP

• Storage lid is fully open 

position.

• Outside flap is fully 

closed position.

Soft top performs closed operation.

DOWN

Soft top performs open operation.

ROOF SYSTEM

OPEN

—

Soft top system performs open operation.

CLOSE

Soft top system performs closed operation.

5TH BOW SYSTEM

OPEN

• Roof lock is unlock posi-

tion.

• Storage lid is fully closed 

position.

1st bow and 5th bow performs fold operation.

CLOSE

1st bow and 5th bow performs spread operation.

HYDRAULIC PRESSURE 
RELEASE

ON

—

Switching valve performs OFF operation.

CAUTION:

An unintentional operation of soft top or storage lid may 
occur due to its own weight because oil pressure is not 
maintained when switching valve is released.
To prevent injury, be careful not to pinch hands.

TRUNK OPENER

ON

Soft top is fully open/closed 
position.

Trunk lid opener actuator performs unlock operation.

ROOF STATE OUTPUT 
(AUDIO)

ON

Roof lock is unlock position.

Full open position signal of roof is transmitted to audio unit.

OFF

Full closed position signal of roof is transmitted to audio unit.

POWER WINDOW (LH/
RH)

UP

• Soft top is fully open/

closed position.

• Power window system is 

initialized.

Power window (LH/RH) performs closed operation.

DOWN

Power window (LH/RH) performs open operation.

REAR WINDOW DEFOG-
GER

ON

Soft top is fully closed posi-
tion.

Rear window defogger performs ON operation.

OFF

Rear window defogger performs OFF operation.

Revision: 2013 February

2012 Murano CrossCabriolet

DEF-12

< SYSTEM DESCRIPTION >

DIAGNOSIS SYSTEM (SOFT TOP CONTROL UNIT)

OUTSIDE FLAP MOTOR

DEPLOY

• Soft top is in the storage 

room.

• Storage lid is fully open 

position.

Outside flap motor performs deployment operation.

STORAGE

Outside flap motor performs storage operation.

INSIDE FLAP MOTOR

DEPLOY

Storage lid is fully open po-
sition.

Inside flap motor performs deployment operation.

STORAGE

Inside flap motor performs storage operation.

STORAGE LID CLOSURE 
MOTOR

OP POS

Storage lid is fully closed 
position.

Storage lid closure motor performs open operation.

CL POS

Storage lid closure motor performs closed operation.
NOTE:
Closure motor stops the closed operation and starts the neu-
tral operation after turning close switch ON.

CONSULT display

Operation/condition

Description

Item

Indication

Revision: 2013 February

2012 Murano CrossCabriolet

BCM

DEF-13

< ECU DIAGNOSIS INFORMATION >

C

D

E

F

G

H

I

J

K

M

A

B

DEF

N

O

P

ECU DIAGNOSIS INFORMATION

BCM

List of ECU Reference

INFOID:0000000007566492

ECU

Reference

BCM

BCS-31, "Reference Value"

BCS-53, "Fail-safe"

BCS-53, "DTC Inspection Priority Chart"

BCS-54, "DTC Index"

Revision: 2013 February

2012 Murano CrossCabriolet