Murano Cross Cabriolet Z51 (2012 year). Manual

HORN

HRN-3

< WIRING DIAGRAM >

HRN

WIRING DIAGRAM

HORN

Wiring Diagram

INFOID:0000000007565497

For connector terminal arrangements, harness layouts, and alphabets in a

(option abbreviation; if not

described in wiring diagram), refer to

GI-12, "Connector Information"

JCLWA5340GB

Revision: 2013 February

2012 Murano CrossCabriolet

HRN-4

< REMOVAL AND INSTALLATION >

HORN

REMOVAL AND INSTALLATION

HORN

Exploded View

INFOID:0000000007565498

Removal and Installation

INFOID:0000000007565499

REMOVAL

Remove the front grille. Refer to

EXT-18, "Exploded View"

Disconnect the horn (LOW, HIGH) connector.

Remove the horn mounting nut, and remove the horn (LOW, HIGH) from the vehicle.

INSTALLATION

Install in the reverse order of removal.

Horn (HIGH)

Horn (LOW)

JPLIA1492ZZ

Revision: 2013 February

2012 Murano CrossCabriolet

PRECAUTIONS

INL-3

< PRECAUTION >

INL

PRECAUTION

PRECAUTIONS

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

INFOID:0000000007566440

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:0000000007566441

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:0000000007566442

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

INL-4

< SYSTEM DESCRIPTION >

COMPONENT PARTS

SYSTEM DESCRIPTION

COMPONENT PARTS

INTERIOR LIGHTING SYSTEM

INTERIOR LIGHTING SYSTEM : Component Parts Location

INFOID:0000000007566443

INTERIOR LIGHTING SYSTEM : Component Description

INFOID:0000000007566444

IPDM E/R
Refer to

PCS-4, "Component

Parts Location"

Step lamp

Door switch

Door request switch

Door key cylinder switch

Rear remote keyless entry receiver
Refer to

DLK-10, "DOOR LOCK SYSTEM :

Component Parts Location"

Trunk room lamp

Trunk room lamp switch

Soft top control unit
Refer to

RF-9, "Component Parts Location"

10. BCM

Refer to

BCS-4, "BODY CON-

TROL SYSTEM : Component
Parts Location"

11. Optical sensor

Refer to

EXL-6, "Component

Parts Location"

12.

Front remote keyless entry receiver

13. Key slot

14. Push-button ignition switch

15.

Combination switch

16. Combination meter

17. Map lamp

18.

Vanity mirror lamp

19. Illumination control switch

20. Door lock and unlock switch

JMLIA2206ZZ

Part

Description

BCM

• Activates the interior room lamp timer depending on the vehicle condition to turn the

interior room lamp ON/OFF.

• Turns the step lamp ON /OFF according to any door switch status.
• Operates the interior room lamp battery saver depending on the vehicle condition to

cut the interior room lamp power supply.

• Detects each switch condition by the combination switch reading function.
• Judges the illumination lamp ON/OFF status depending on the vehicle condition.

And then it transmits position light request signal to IPDM E/R and combination
meter (with CAN communication).

IPDM E/R

Controls the integrated relay according to the request from BCM (with CAN communi-
cation).

Remote keyless entry receiver

Refer to

DLK-11, "DOOR LOCK SYSTEM : Component Description"

• Door request switch
• Door key cylinder switch
• Door lock/unlock switch

Refer to

DLK-11, "DOOR LOCK SYSTEM : Component Description"

Revision: 2013 February

2012 Murano CrossCabriolet

COMPONENT PARTS

INL-5

< SYSTEM DESCRIPTION >

INL

• Door switch
• Trunk room lamp switch

Refer to

DLK-11, "DOOR LOCK SYSTEM : Component Description"

Key slot

Refer to

DLK-11, "DOOR LOCK SYSTEM : Component Description"

Optical sensor

Refer to

EXL-7, "Component Description"

Combination meter

Refer to

MWI-8, "METER SYSTEM : System Description"

Combination switch
(Lighting & turn signal switch)

Refer to

BCS-6, "COMBINATION SWITCH READING SYSTEM : System Description"

Part

Description

Revision: 2013 February

2012 Murano CrossCabriolet

INL-6

< SYSTEM DESCRIPTION >

SYSTEM

SYSTEM

INTERIOR ROOM LAMP CONTROL SYSTEM

INTERIOR ROOM LAMP CONTROL SYSTEM : System Diagram

INFOID:0000000007566445

INTERIOR ROOM LAMP CONTROL SYSTEM : System Description

INFOID:0000000007566446

OUTLINE

• Interior room lamps* are controlled by interior room lamp timer control function of BCM.

*: Map lamp (when map lamp switch is in DOOR position).

• Step lamp is controlled by step lamp control function of BCM.
• Trunk room lamp is controlled by trunk room lamp control function of BCM.
• Push-button ignition switch illumination is controlled by the push-button ignition switch illumination control

function of BCM.

INTERIOR ROOM LAMP TIMER CONTROL

Interior Room Lamp Timer Basic Operation

• The interior room lamp turns ON and OFF (gradual brightening and dimming) by the interior room timer.

JMLIA2222GB

JPLIA0093GB

Revision: 2013 February

2012 Murano CrossCabriolet

SYSTEM

INL-7

< SYSTEM DESCRIPTION >

INL

• BCM judges the vehicle condition with the following items. It activates the interior room timer.
- Ignition switch status
- Door switch signal (ALL)
- Door lock/unlock signal (Remote keyless entry receiver, each door request switch, door key cylinder switch,

door lock and unlock switch)

NOTE:
Each function of interior room lamp timer can be set by CONSULT. Refer to

INL-12, "INT LAMP : CONSULT

Function (BCM - INT LAMP)"

Interior Room Lamp ON Operation

• BCM always turns the interior room lamp ON when any door opens.
• BCM activates the interior room timer in any of the following conditions to turn the interior room lamp ON for

a period of time.

- Any door opens before all doors close.
- Ignition switch is turned ON

→

OFF.

- Any door unlock signal is detected when all doors close with ignition switch OFF.
NOTE:
Restart the timer if new condition is input during the timer operating time.

Interior Room Lamp OFF Operation

BCM stops the timer in any of the following conditions to turn the interior room lamp OFF.
• The timer operating time is expired.
• Ignition switch position is other than OFF with all doors close.
• Any door lock operation is detected with all doors close.

STEP LAMP CONTROL

BCM controls the step lamp (ground-side) to turn ON with any door switch ON.

TRUNK ROOM LAMP CONTROL

BCM turns trunk room lamp ON when the following condition is detected.
• Trunk room lamp switch is ON
BCM turns trunk room lamp OFF when the following condition is detected.
• Trunk room lamp switch is OFF

PUSH-BUTTON IGNITION SWITCH ILLUMINATION CONTROL

Push-button Ignition Switch Illumination Basic Operation

• BCM provides the power supply and the ground to turn the push-button ignition switch illumination ON.
• BCM cuts the ground supply while the each illumination (tail lamp) ON. BCM switches to the ground control

with the meter illumination control function.

Push-button Ignition Switch Illumination ON Operation

BCM turns the push-button ignition switch illumination ON in the following conditions.
• Ignition switch ON
• Each illumination (tail lamp) ON
• Any of the following conditions with ignition switch OFF
- Engine start permission is entered.
- Intelligent Key inserted into the key slot.
- Driver door is LOCK

→

UNLOCK.

- Driver door is open.

Push-button Ignition Switch Illumination OFF Operation

BCM turns the push-button ignition switch illumination OFF in any of the following conditions.
• The push-button ignition switch illumination ON conditions do not satisfy.
• All of the following conditions with ignition switch OFF
- Each illumination (tail lamp) OFF
- The push-button ignition switch illumination ON conditions do not change (15 seconds after the ignition

switch OFF) or the driver door is UNLOCK

→

LOCK.

INTERIOR ROOM LAMP BATTERY SAVER SYSTEM

Revision: 2013 February

2012 Murano CrossCabriolet

INL-8

< SYSTEM DESCRIPTION >

SYSTEM

INTERIOR ROOM LAMP BATTERY SAVER SYSTEM : System Diagram

INFOID:0000000007566447

INTERIOR ROOM LAMP BATTERY SAVER SYSTEM : System Description

INFOID:0000000007566448

OUTLINE

• Interior room lamp battery saver is controlled by BCM.
• BCM turns applicable lamps OFF depending on the vehicle condition. This function prevents the battery

from over-discharging if the driver neglect turning OFF the any lamps.

Applicable lamps

• Map lamp
• Step lamp
• Trunk room lamp
• Vanity mirror lamp

INTERIOR ROOM LAMP BATTERY SAVER FUNCTION

• When the ignition switch is turned OFF, BCM operates the timer for a period of time to cut the interior room

lamp power supply.

• BCM restart the timer when any of the following signals changes while operating the timer.
- Ignition switch status
- Door switch signal (ALL)
- Door lock/unlock signal (Remote keyless entry receiver, each door request switch, door key cylinder switch,

door lock and unlock switch)

- Key switch signal (Key slot)
• BCM provides the interior room lamp power supply continuously when the ignition switch position is other

than OFF.

NOTE:
Each function of interior room lamp battery saver can be set by CONSULT. Refer to

INL-13, "BATTERY

SAVER : CONSULT Function (BCM - BATTERY SAVER)"

ILLUMINATION CONTROL SYSTEM

JMLIA2223GB

Revision: 2013 February

2012 Murano CrossCabriolet

SYSTEM

INL-9

< SYSTEM DESCRIPTION >

INL

ILLUMINATION CONTROL SYSTEM : System Diagram

INFOID:0000000007566449

ILLUMINATION CONTROL SYSTEM : System Description

INFOID:0000000007566450

OUTLINE

Each illumination lamp is controlled by each function of BCM, IPDM E/R and combination meter.

Control by BCM

• Combination switch reading function
• Headlamp control function

Control by IPDM E/R

• Relay control function

Control by combination meter

• Meter illumination control function (Refer to

MWI-14, "METER ILLUMINATION CONTROL : System Descrip-

tion"

ILLUMINATION CONTROL

• BCM detects the combination switch condition by the combination switch reading function.
• BCM transmits position light request signal to IPDM E/R and combination meter according to tail lamp ON

condition.

Tail lamp ON condition

- Lighting switch 1ST
- Lighting switch 2ND
- Lighting switch AUTO, and the auto light function ON judgment
- Lighting switch AUTO, with the front fog lamp switch ON and the ignition switch ON
• IPDM E/R turns the integrated tail lamp relay ON according to position light request signal. It provides the

power supply to each illumination lamp.

• Combination meter enters in the nighttime mode according to position light request signal. Under the night-

time mode the combination meter controls the illuminance by controlling each illumination lamp (ground
side).

JMLIA2210GB

Revision: 2013 February

2012 Murano CrossCabriolet

INL-10

< SYSTEM DESCRIPTION >

DIAGNOSIS SYSTEM (BCM)

DIAGNOSIS SYSTEM (BCM)

COMMON ITEM

COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)

INFOID:0000000007818552

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)

INL-11

< SYSTEM DESCRIPTION >

INL

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”.

INT LAMP

CONSULT screen item

Indication/Unit

Description

Vehicle Speed

km/h

Vehicle speed of the moment a particular DTC is detected

Odo/Trip Meter

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)

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

→

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

INL-12

< SYSTEM DESCRIPTION >

DIAGNOSIS SYSTEM (BCM)

INT LAMP : CONSULT Function (BCM - INT LAMP)

INFOID:0000000007566452

WORK SUPPORT

*: Factory setting

DATA MONITOR

JPLIA0093GB

Service item

Setting item

Setting

SET I/L D-UNLCK INTCON

ON*

With the interior room lamp timer function

OFF

Without the interior room lamp timer function

ROOM LAMP TIMER SET

MODE 2

7.5 sec.

Sets the interior room lamp ON time. (Timer operating time)

MODE 3*

15 sec.

MODE 4

30 sec.

ROOM LAMP ON TIME SET

MODE 1

0.5 sec.

Sets the interior room lamp gradual brightening time.

MODE 2*

1 sec.

MODE 3

2 sec.

MODE 4

3 sec.

MODE 5

0 sec.

ROOM LAMP OFF TIME SET

MODE 1

0.5 sec.

Sets the interior room lamp gradual dimming time.

MODE 2*

1 sec.

MODE 3

2 sec.

MODE 4

3 sec.

MODE 5

0 sec.

R LAMP TIMER LOGIC SET

MODE 1*

Interior room lamp timer activates with synchronizing all doors.

MODE 2

Interior room lamp timer activates with synchronizing the driver door
only.

Monitor item

[Unit]

Description

REQ SW-DR
[On/Off]

The switch status input from door request switch (driver side)

REQ SW-AS
[On/Off]

The switch status input from door request switch (passenger side)

REQ SW-RR
[On/Off]

NOTE:
The item is indicated, but not monitored.

REQ SW-RL
[On/Off]

Revision: 2013 February

2012 Murano CrossCabriolet

DIAGNOSIS SYSTEM (BCM)

INL-13

< SYSTEM DESCRIPTION >

INL

ACTIVE TEST

BATTERY SAVER

BATTERY SAVER : CONSULT Function (BCM - BATTERY SAVER)

INFOID:0000000007566453

WORK SUPPORT

PUSH SW
[On/Off]

The switch status input from push-button ignition switch

KEY SW-SLOT
[On/Off]

Key switch status input from key slot

ACC RLY-F/B
[On/Off]

NOTE:
The item is indicated, but not monitored.

UNLK SEN-DR
[On/Off]

Driver door unlock status input from unlock sensor

DOOR SW-DR
[On/Off]

The switch status input from front door switch (driver side)

DOOR SW-AS
[On/Off]

The switch status input from front door switch (passenger side)

DOOR SW-RR
[On/Off]

NOTE:
The item is indicated, but not monitored.

DOOR SW-RL
[On/Off]

DOOR SW-BK
[On/Off]

CDL LOCK SW
[On/Off]

Lock switch status received from door lock/unlock switch by power window switch se-
rial link

CDL UNLOCK SW
[On/Off]

Unlock switch status received from door lock/unlock switch by power window switch
serial link

KEY CYL LK-SW
[On/Off]

Lock switch status received from door key cylinder switch by power window switch
serial link

KEY CYL UN-SW
[On/Off]

Unlock switch status received from door key cylinder switch by power window switch
serial link

TRNK/HAT MNTR
[On/Off]

The switch status input from trunk room lamp switch

RKE-LOCK
[On/Off]

Lock signal status received from remote keyless entry receiver

RKE-UNLOCK
[On/Off]

Unlock signal status received from remote keyless entry receiver

Monitor item

[Unit]

Description

Test item

Operation

Description

INT LAMP

Outputs the interior room lamp control signal to turn map lamp and personal lamp ON
(Map lamp switch is in DOOR position).

Off

Stops the interior room lamp control signal to turn map lamp and personal lamp OFF.

STEP LAMP TEST

Outputs the step lamp control signal to turn step lamp ON.

Off

Stops the step lamp control signal to turn step lamp OFF.

LUGGAGE LAMP TEST

Outputs the trunk room lamp control signal to turn trunk room lamp ON.

Off

Stops the trunk room lamp control signal to turn trunk room lamp OFF.

Revision: 2013 February

2012 Murano CrossCabriolet

INL-14

< SYSTEM DESCRIPTION >

DIAGNOSIS SYSTEM (BCM)

*: Factory setting

DATA MONITOR

Service item

Setting item

Setting

BATTERY SAVER SET

On*

With the exterior lamp battery saver function

Off

Without the exterior lamp battery saver function

ROOM LAMP BAT SAV SET

On*

With the interior room lamp battery saver function

Off

Without the interior room lamp battery saver function

ROOM LAMP TIMER SET

MODE 1

30 min.

Sets the interior room lamp battery saver timer operating
time.

MODE 2

60 min.

MODE 3*

15 min.

Monitor item

[Unit]

Description

REQ SW-DR
[On/Off]

The switch status input from door request switch (driver side)

REQ SW-AS
[On/Off]

The switch status input from door request switch (passenger side)

REQ SW-RR
[On/Off]

NOTE:
The item is indicated, but not monitored.

REQ SW-RL
[On/Off]

PUSH SW
[On/Off]

The switch status input from push-button ignition switch

ACC RLY-F/B
[On/Off]

NOTE:
The item is indicated, but not monitored.

KEY SW-SLOT
[On/Off]

Key switch status input from key slot

UNLK SEN-DR
[On/Off]

Driver door unlock status input from unlock sensor

DOOR SW-DR
[On/Off]

The switch status input from front door switch (driver side)

DOOR SW-AS
[On/Off]

The switch status input from front door switch (passenger side)

DOOR SW-RR
[On/Off]

NOTE:
The item is indicated, but not monitored.

DOOR SW-RL
[On/Off]

DOOR SW-BK
[On/Off]

CDL LOCK SW
[On/Off]

Lock switch status received from door lock/unlock switch by power window switch se-
rial link

CDL UNLOCK SW
[On/Off]

Unlock switch status received from door lock/unlock switch by power window switch
serial link

KEY CYL LK-SW
[On/Off]

Lock switch status received from door key cylinder switch by power window switch
serial link

KEY CYL UN-SW
[On/Off]

Unlock switch status received from door key cylinder switch by power window switch
serial link

TRNK/HAT MNTR
[On/Off]

The switch status input from trunk room lamp switch

Revision: 2013 February

2012 Murano CrossCabriolet

Murano Cross Cabriolet Z51 (2012 year). Manual - part 47