Murano Cross Cabriolet Z51 (2012 year). Manual - part 41

GW-28

< REMOVAL AND INSTALLATION >

DOOR GLASS

Fitting between door glass and corner piece assembly

Apply protective tape (B) on door glass at a distance of 25.5 mm (0.1004in), starting from front edge as
shown in the figure above.

JMKIA8393ZZ

Door glass

Mirror base

Quarter window glass

Door weather -strip

: 25.5 (1.0004)

: 4 (0.157)

: 6.6 (0.260)

: 9.8 (0.386)

: 9.1 (0.358)

: 8.5 (0.335)

: 2 (0.079)

Unit: mm (in)

Revision: 2013 February

2012 Murano CrossCabriolet

DOOR GLASS

GW-29

< REMOVAL AND INSTALLATION >

Reinstall door glass while fitting the corner piece assembly to the protective tape as shown in the figure
above.

Fitting between door glass and quarter window glass

Fully close door glass and quarter window glass.

Check that both upper edges of door glass and quarter window glass are at the same level.

Check that the distance between door glass and quarter window glass sash is 8.5 mm (0.335 in).

Inclination Adjustment

• Check that door glass is fitted securely into the sash groove.
• Lower the glass slightly [approximately 10 to 20 mm (0.394 to 0.787 in)] and check that the clearance to the

body side weather-strip is parallel. Loosen the regulator mounting bolts, guide rail mounting bolts, and glass
and guide rail mounting bolts to correct the glass position if the clearance between door glass and body side
weather-strip is not parallel.

• Raise door glass fully and adjust door glass top end and body side weather-strip with adjusting bolt (B), (C),

or (D) as shown in the figure above.

• Always start at adjusting with bolt (B). If the desired angle is not achieved, then proceed to adjusting bolt (C)

and (D) respectively.

• Turn the adjusting bolt clockwise to move the door glass upper end outward.
• Turn the adjusting bolt counterclockwise to move the door glass upper end inward.
• Adjustment process with adjusting bolt (C) is the inverse of adjusting bolt (B) and (D).
• When adjusting with adjusting bolt (D), turn the adjusting bolt clockwise to move the door glass upper end

inward, then counterclockwise to move the door glass upper end outward.

JMKIA8598ZZ

Door glass assembly

Quarter window glass sash

Quarter window glass

: 8.5 (0.335)

Unit: mm (in)

JMKIA8396ZZ

Revision: 2013 February

2012 Murano CrossCabriolet

GW-30

< REMOVAL AND INSTALLATION >

DOOR REGULATOR

DOOR REGULATOR

Exploded View

INFOID:0000000007565720

Removal and Installation

INFOID:0000000007565721

REMOVAL

Remove the door glass. Refer to

GW-25, "Removal and Installation"

Disconnect the power window motor harness connector.

Disconnect the harness fixing clips from the door module assembly.

1. Door panel assembly

Door glass

Module base

Hole cover seal

Power window motor

Door regulator

Door corner piece weather-strip up-
per

Door corner piece weather-strip low-
er

Door corner piece assembly

10. Door inside seal

: Vehicle front

JMKIA8390ZZ

Revision: 2013 February

2012 Murano CrossCabriolet

DOOR REGULATOR

GW-31

< REMOVAL AND INSTALLATION >

Remove door module assembly mounting bolts (A) and then
remove the door module assembly from door panel.

INSTALLATION

Install in the reverse order of removal.

Disassembly and Assembly

INFOID:0000000007565722

DISASSEMBLY

Remove the power window motor from the module assembly.

Remove door regulator assembly from module assembly.

ASSEMBLY

Assemble in the reverse order of disassembly.

Inspection After Removal

INFOID:0000000007565723

Check the regulator assembly for the following items. Replace or
grease it if a malfunction is detected.
• Wire wear
• Regulator deformation

Inspection and Adjustment

INFOID:0000000007565724

SYSTEM INITIALIZATION

• Description: Refer to

PWC-26, "Description"

• Work procedure: Refer to

PWC-26, "Work Procedure"

CHECK ANTI-PINCH FUNCTION

• Description: Refer to

PWC-27, "Description"

• Work procedure: Refer to

PWC-27, "Work Procedure"

FITTING INSPECTION

JMKIA8563ZZ

Glass mounting nut

Tightening torque

: 5.1N.m (0.52kg-m, 45 in-lb)

JMKIA8391ZZ

Revision: 2013 February

2012 Murano CrossCabriolet

GW-32

< REMOVAL AND INSTALLATION >

DOOR REGULATOR

Preparation for adjustment

Apply protective tape (A) as shown on the figure above on door glass and quarter window glass.

Fully close door window glass and quarter window glass, and mark each edge of weather-strip on the
glass as shown by the marks (B).

Measure the clearances (C), (D), and (E) and check that these clearances are in the range provided in the
figure above. If not, then proceed to the adjustment of quarter window glass by following the steps below.

JMKIA8395ZZ

Door glass assembly

Quarter window glass

4.0 (0.157)

9.8 (0.386)

Unit: mm (in)

Revision: 2013 February

2012 Murano CrossCabriolet

DOOR REGULATOR

GW-33

< REMOVAL AND INSTALLATION >

Fitting between door glass and corner piece assembly

Remove the door glass. Refer to

GW-25, "Removal and Installation"

Apply protective tape (B) on door glass at a distance of 25.5 mm (0.1004in), starting from front edge as
shown in the figure above.

JMKIA8393ZZ

Door glass

Mirror base

Quarter window glass

Door weather -strip

: 25.5 (1.0004)

: 4 (0.157)

: 6.6 (0.260)

: 9.8 (0.386)

: 9.1 (0.358)

: 8.5 (0.335)

: 2 (0.079)

Unit: mm (in)

Revision: 2013 February

2012 Murano CrossCabriolet

GW-34

< REMOVAL AND INSTALLATION >

DOOR REGULATOR

Reinstall door glass while fitting the corner piece assembly to the protective tape as shown in the figure
above.

Fitting between door glass and quarter window glass

Fully close door glass and quarter window glass.

Check that both upper edges of door glass and quarter window glass are at the same level.

Check that the distance between door glass and quarter window glass sash is 8.5 mm (0.335 in).

Inclination Adjustment

• Check that door glass is fitted securely into the sash groove.
• Lower the glass slightly [approximately 10 to 20 mm (0.394 to 0.787 in)] and check that the clearance to the

• Raise door glass fully and adjust door glass top end and body side weather-strip with adjusting bolt (B), (C),

or (D) as shown in the figure above.

• Always start at adjusting with bolt (B). If the desired angle is not achieved, then proceed to adjusting bolt (C)

and (D) respectively.

inward, then counterclockwise to move the door glass upper end outward.

JMKIA8598ZZ

Door glass assembly

Quarter window glass sash

Quarter window glass

: 8.5 (0.335)

Unit: mm (in)

JMKIA8396ZZ

Revision: 2013 February

2012 Murano CrossCabriolet

HAC-1

VENTILATION, HEATER & AIR CONDITIONER

SECTION

HAC

HAC

CONTENTS

HEATER & AIR CONDITIONING CONTROL SYSTEM

AUTOMATIC AIR CONDITIONING

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

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

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

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

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

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

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

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

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

BLOWER UNIT ASSEMBLY .......................................

BLOWER UNIT ASSEMBLY : Intake Door Motor ......

BLOWER UNIT ASSEMBLY : Blower Motor .............

HEATER & COOLING UNIT ASSEMBLY ...................

HEATER & COOLING UNIT ASSEMBLY : Aspira-
tor ..............................................................................

HEATER & COOLING UNIT ASSEMBLY : Intake
Sensor .......................................................................

HEATER & COOLING UNIT ASSEMBLY : Air Mix
Door Motor (Driver side) ............................................

HEATER & COOLING UNIT ASSEMBLY : Air Mix
Door Motor (Passenger side) ....................................

HEATER & COOLING UNIT ASSEMBLY : Mode
Door Motor ................................................................

HEATER & COOLING UNIT ASSEMBLY : Upper
Ventilator Door Motor ................................................

A/C Auto Amp. ..........................................................

Ambient Sensor .........................................................

In-vehicle Sensor ......................................................

Sunload Sensor .........................................................

Refrigerant Pressure Sensor .....................................

Magnet Clutch .........................................................

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

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

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

Temperature Control ...............................................

Air Outlet Control .....................................................

Air Flow Control .......................................................

Air Inlet Control ........................................................

Compressor Control ................................................

Door Control ............................................................

Fail-safe ...................................................................

OPERATION .....................................................

Switch Name and Function ......................................

DIAGNOSIS SYSTEM (A/C AUTO AMP.) ........

Description ...............................................................

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

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

A/C AUTO AMP. ...............................................

Reference Value ......................................................

Fail-safe ...................................................................

DTC Index ...............................................................

ECM, IPDM E/R .................................................

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

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

AUTOMATIC AIR CONDITIONING SYSTEM ...

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

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

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

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

OPERATION INSPECTION ..............................

Work Procedure .......................................................

SYSTEM SETTING ...........................................

Temperature Setting Trimmer .................................

Revision: 2013 February

2012 Murano CrossCabriolet

HAC-2

Inlet Port Memory Function (REC) .........................

Inlet Port Memory Function (FRE) ..........................

Foot Position Setting Trimmer ................................

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

U1000 CAN COMM CIRCUIT ............................

Description ..............................................................

DTC Logic ...............................................................

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

U1010 CONTROL UNIT (CAN) .........................

Description ..............................................................

DTC Logic ...............................................................

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

B2578, B2579 IN-VEHICLE SENSOR ...............

DTC Logic ...............................................................

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

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

B257B, B257C AMBIENT SENSOR .................

DTC Logic ...............................................................

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

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

B2581, B2582 INTAKE SENSOR ......................

DTC Logic ...............................................................

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

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

B2630, B2631 SUNLOAD SENSOR .................

DTC Logic ...............................................................

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

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

B2632, B2633 AIR MIX DOOR MOTOR
(DRIVER SIDE) ..................................................

DTC Logic ...............................................................

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

B2634, B2635 AIR MIX DOOR MOTOR (PAS-
SENGER SIDE) ..................................................

DTC Logic ...............................................................

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

B2636, B2637, B2638, B2639, B2654, B2655
MODE DOOR MOTOR ......................................

DTC Logic ...............................................................

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

B263D, B263E, B263F INTAKE DOOR MO-
TOR ....................................................................

DTC Logic ...............................................................

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

B2661, B2662, B2663 UPPER VENTILATOR
DOOR MOTOR ..................................................

DTC Logic ...............................................................

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

POWER SUPPLY AND GROUND CIRCUIT .....

A/C AUTO AMP. ........................................................

A/C AUTO AMP. : Diagnosis Procedure .................

DOOR MOTOR ..................................................

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

BLOWER MOTOR .............................................

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

Component Inspection (Blower Motor) ...................

Component Inspection (Blower Relay) ...................

MAGNET CLUTCH ............................................

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

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

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

AUTOMATIC AIR CONDITIONING SYSTEM ...

Symptom Table .......................................................

INSUFFICIENT COOLING .................................

Description ..............................................................

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

INSUFFICIENT HEATING .................................

Description ..............................................................

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

COMPRESSOR DOES NOT OPERATE ...........

Description ..............................................................

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

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

PRESET SWITCH ..............................................

Exploded View ........................................................

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

A/C AUTO AMP. ................................................

Exploded View ........................................................

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

AMBIENT SENSOR ...........................................

Exploded View ........................................................

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

IN-VEHICLE SENSOR .......................................

Exploded View ........................................................

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

SUNLOAD SENSOR .........................................

Exploded View ........................................................

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

INTAKE SENSOR ..............................................

Exploded View ........................................................

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

REFRIGERANT PRESSURE SENSOR ............

Exploded View ........................................................

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

Revision: 2013 February

2012 Murano CrossCabriolet

HAC-3

HAC

DOOR MOTOR ...................................................

Exploded View ........................................................

AIR MIX DOOR MOTOR ...........................................

AIR MIX DOOR MOTOR : Removal and Installa-
tion ..........................................................................

MODE DOOR MOTOR ..............................................

MODE DOOR MOTOR : Removal and Installation

....

INTAKE DOOR MOTOR ............................................

INTAKE DOOR MOTOR : Removal and Installa-
tion ...........................................................................

UPPER VENTILATOR DOOR MOTOR .....................

UPPER VENTILATOR DOOR MOTOR : Removal
and Installation ........................................................

Revision: 2013 February

2012 Murano CrossCabriolet

HAC-4

< PRECAUTION >

[AUTOMATIC AIR CONDITIONING]

PRECAUTIONS

PRECAUTION

PRECAUTIONS

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

INFOID:0000000007563373

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:0000000007563374

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:0000000007563375

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

COMPONENT PARTS

HAC-5

< SYSTEM DESCRIPTION >

[AUTOMATIC AIR CONDITIONING]

HAC

SYSTEM DESCRIPTION

COMPONENT PARTS

Component Parts Location

INFOID:0000000007563376

ENGINE COMPARTMENT

JPIIA0607ZZ

Revision: 2013 February

2012 Murano CrossCabriolet

HAC-6

< SYSTEM DESCRIPTION >

[AUTOMATIC AIR CONDITIONING]

COMPONENT PARTS

PASSENGER COMPARTMENT

Refrigerant pressure sensor

Compressor (magnet clutch)

Ambient sensor

Intake door motor

Upper ventilator door motor

Air mix door motor (passenger side)

Air mix door motor (driver side)

Mode door motor

Sunload sensor

JPIIA0608ZZ

Revision: 2013 February

2012 Murano CrossCabriolet

COMPONENT PARTS

HAC-7

< SYSTEM DESCRIPTION >

[AUTOMATIC AIR CONDITIONING]

HAC

Component Description

INFOID:0000000007563377

BLOWER UNIT ASSEMBLY

BLOWER UNIT ASSEMBLY : Intake Door Motor

INFOID:0000000007563378

• Intake door motor consists of motor that drives door, PBR (Potentio Balance Register) that detects door

position and LCU (Local Control Unit) that performs multiplex communication control (LAN) with A/C auto
amp. Refer to

HAC-15, "Door Control"

In-vehicle sensor

A/C auto amp.

Intake sensor

10. Blower motor

Component

Description

Blower unit assembly

Intake door motor

HAC-7, "BLOWER UNIT ASSEMBLY : Intake Door Motor"

Blower motor

HAC-8, "BLOWER UNIT ASSEMBLY : Blower Motor"

Heater & cooling unit
assembly

Aspirator

HAC-8, "HEATER & COOLING UNIT ASSEMBLY : Aspirator"

Intake sensor

HAC-8, "HEATER & COOLING UNIT ASSEMBLY : Intake Sensor"

Air mix door motor
(driver side)

HAC-8, "HEATER & COOLING UNIT ASSEMBLY : Air Mix Door Motor (Driver side)"

Air mix door motor
(passenger side)

HAC-9, "HEATER & COOLING UNIT ASSEMBLY : Air Mix Door Motor (Passenger
side)"

Mode door motor

HAC-9, "HEATER & COOLING UNIT ASSEMBLY : Mode Door Motor"

Upper ventilator
door motor

HAC-9, "HEATER & COOLING UNIT ASSEMBLY : Upper Ventilator Door Motor"

Preset switch

Preset switch is integrated with A/C controller and AV operation switch. A/C switch op-
eration signal is transmitted from preset switch to AV control unit via communication
line.
Refer to

AV-10, "Component Parts Location"

(BOSE audio without navigation) or

AV-

126, "Component Parts Location"

(BOSE audio with navigation) for detailed installation

location.

Display unit

Display unit indicates operation status of air conditioning.
Refer to

AV-10, "Component Parts Location"

(BOSE audio without navigation) or

AV-

126, "Component Parts Location"

(BOSE audio with navigation) for detailed installation

location.

AV control unit

AV control unit transmits A/C switch operation signal to A/C auto amp. via CAN com-
munication line.
Refer to

AV-10, "Component Parts Location"

(BOSE audio without navigation) or

AV-

126, "Component Parts Location"

(BOSE audio with navigation) for detailed installation

location.

A/C auto amp.

HAC-9, "A/C Auto Amp."

ECM

ECM, when receiving A/C ON signal and blower fan ON signal from A/C auto amp.,
transmits A/C compressor request signal to IPDM E/R via CAN communication ac-
cording to status of the engine and refrigerant pressure.
ECM transmits engine coolant temperature signal to A/C auto amp. via CAN commu-
nication line.
Refer to

EC-15, "ENGINE CONTROL SYSTEM : Component Parts Location"

for de-

tailed installation location.

IPDM E/R

A/C relay is integrated in IPDM E/R. IPDM E/R operates A/C relay when receiving A/
C compressor request signal from ECM via CAN communication line.
Refer to

PCS-4, "Component Parts Location"

for detailed installation location.

Ambient sensor

HAC-9, "Ambient Sensor"

In-vehicle sensor

HAC-9, "In-vehicle Sensor"

Sunload sensor

HAC-9, "Sunload Sensor"

Refrigerant pressure sensor

HAC-9, "Refrigerant Pressure Sensor"

Magnet clutch

HAC-10, "Magnet Clutch"

Revision: 2013 February

2012 Murano CrossCabriolet

HAC-8

< SYSTEM DESCRIPTION >

[AUTOMATIC AIR CONDITIONING]

COMPONENT PARTS

• Rotation of motor is transmitted to intake door, then air inlet is switched.

BLOWER UNIT ASSEMBLY : Blower Motor

INFOID:0000000007563379

• The blower motor utilizes a brush-less motor with a rotating mag-

net. Quietness is improved over previous motors that rotates coil
while brush functions as contact points.

• Rotation speed is changed according to blower motor control sig-

nal (duty ratio) from A/C auto amp.

HEATER & COOLING UNIT ASSEMBLY

HEATER & COOLING UNIT ASSEMBLY : Aspirator

INFOID:0000000007563380

The aspirator generates the vacuum by the air blown from the heater
& cooling unit case and draws the air of the passenger room to the
in-vehicle sensor area via the aspirator duct.

HEATER & COOLING UNIT ASSEMBLY : Intake Sensor

INFOID:0000000007563381

Intake sensor measures evaporator fin temperature. The sensor uses a thermistor which is sensitive to the
change in temperature. The electrical resistance of the thermistor decreases as temperature increases.

HEATER & COOLING UNIT ASSEMBLY : Air Mix Door Motor (Driver side)

INFOID:0000000007563382

• Air mix door motor (driver side) consists of motor that drives door, PBR (Potentio Balance Register) that

detects door position and LCU (Local Control Unit) that performs multiplex communication control (LAN) with
A/C auto amp. Refer to

HAC-15, "Door Control"

• Rotation of motor is transmitted to air mix door (driver side), then air flow temperature (driver side) is

switched.

RJIA2467J

ZHA152H

RJIA1804E

Revision: 2013 February

2012 Murano CrossCabriolet

COMPONENT PARTS

HAC-9

< SYSTEM DESCRIPTION >

[AUTOMATIC AIR CONDITIONING]

HAC

HEATER & COOLING UNIT ASSEMBLY : Air Mix Door Motor (Passenger side)

INFOID:0000000007563383

• Air mix door motor (passenger side) consists of motor that drives door, PBR (Potentio Balance Register) that

detects door position and LCU (Local Control Unit) that performs multiplex communication control (LAN) with
A/C auto amp. Refer to

HAC-15, "Door Control"

• Rotation of motor is transmitted to air mix door (passenger side), then air flow temperature (passenger side)

is switched.

HEATER & COOLING UNIT ASSEMBLY : Mode Door Motor

INFOID:0000000007563384

• Mode door motor consists of motor that drives door, PBR (Potentio Balance Register) that detects door posi-

tion and LCU (Local Control Unit) that performs multiplex communication control (LAN) with A/C auto amp.
Refer to

HAC-15, "Door Control"

• Rotation of motor is transmitted to mode door (ventilator door, max. cool door, defroster door and foot door)

by lever, link, and rod, then air outlet is switched.

HEATER & COOLING UNIT ASSEMBLY : Upper Ventilator Door Motor

INFOID:0000000007563385

• Upper ventilator door motor consists of motor that drives door, PBR (Potentio Balance Register) that detects

door position and LCU (Local Control Unit) that performs multiplex communication control (LAN) with A/C
auto amp. Refer to

HAC-15, "Door Control"

• Rotation of motor is transmitted to upper ventilator door by lod and lever, then air outlet (upper ventilator) is

switched.

A/C Auto Amp.

INFOID:0000000007563386

A/C auto amp. controls automatic air conditioning system, by receiving and calculating signal from each sen-
sor and switch. A/C auto amp. has self-diagnosis function. Diagnosis of air conditioning system can be per-
formed quickly.

Ambient Sensor

INFOID:0000000007563387

Ambient sensor measures ambient air temperature. The sensor uses a thermistor which is sensitive to the
change in temperature. The electrical resistance of the thermistor decreases as temperature increases.

In-vehicle Sensor

INFOID:0000000007563388

In-vehicle sensor measures temperature of intake air that flows through aspirator to passenger room. The sen-
sor uses a thermistor which is sensitive to the change in temperature. The electrical resistance of the ther-
mistor decreases as temperature increases.

Sunload Sensor

INFOID:0000000007563389

Sunload sensor measures sunload amount. This sensor converts sunload amount to voltage signal by photo-
diode and transmits it to A/C auto amp.

Refrigerant Pressure Sensor

INFOID:0000000007563390

DESCRIPTION

• The refrigerant pressure sensor converts high-pressure side refrigerant pressure into voltage and transmits

it to ECM.

• ECM operates cooler cycle protection and cooling fan speed control according to voltage value that is input.

PBIB2657E

Revision: 2013 February

2012 Murano CrossCabriolet

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