Content .. 142 143 144 145 ..

Nissan Juke (2012 year). Service Repair Manual - part 144

HAC-82

< SYMPTOM DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

INSUFFICIENT HEATING

INSUFFICIENT HEATING

Description

INFOID:0000000007577637

Symptom

• Insufficient heating
• No warm air comes out. (Air flow volume is normal.)

Diagnosis Procedure

INFOID:0000000007577638

NOTE:
Perform self-diagnoses with CONSULT before performing symptom diagnosis. If any DTC is detected, per-
form the corresponding diagnosis.

CHECK COOLING SYSTEM

Check engine coolant level and check for leakage. Refer to

CO-8, "Inspection"

Check radiator cap. Refer to

CO-12, "RADIATOR CAP : Inspection"

Check water flow sounds of the engine coolant. Refer to

CO-9, "Refilling"

Is the inspection result normal?

YES

>> GO TO 2.

>> Refill engine coolant and repair or replace the parts depending on the inspection results.

CHECK HEATER HOSE

Check installation of heater hose by visually or touching.

Is the inspection result normal?

YES

>> GO TO 3.

>> Repair or replace parts depending on the inspection results.

CHECK HEATER CORE

Check temperature of inlet hose and outlet hose of heater core.

Check that inlet side of heater core is hot and the outlet side is slightly lower than/almost equal to the inlet
side.

CAUTION:

Always perform the temperature inspection in a short period of time because the engine coolant
temperature is very hot.

Is the inspection result normal?

YES

>> GO TO 4.

>> Replace heater core. Refer to

HA-45, "HEATER CORE : Removal and Installation"

CHECK AIR LEAKAGE FROM EACH DUCT

Check duct and nozzle, etc. of the air conditioning system for air leakage.

Is the inspection result normal?

YES

>> GO TO 5.

>> Repair or replace parts depending on the inspection results.

CHECK SETTING OF TEMPERATURE SETTING TRIMMER

Check setting value of temperature setting trimmer. Refer to

HAC-42, "Temperature Setting Trimmer"

Check that temperature setting trimmer is set to “

−

direction”.

NOTE:
The control temperature can be set by the temperature setting trimmer.

Set difference between the set temperature and control temperature to “0”.

Are the symptoms solved?

YES

>> INSPECTION END

>> Replace A/C auto amp. Refer to

HAC-85, "Removal and Installation"

Revision: 2011 October

2012 JUKE

COMPRESSOR DOES NOT OPERATE

HAC-83

< SYMPTOM DIAGNOSIS >

[AUTOMATIC AIR CONDITIONING]

HAC

COMPRESSOR DOES NOT OPERATE

Description

INFOID:0000000007577639

SYMPTOM

Compressor does not operate.

Diagnosis Procedure

INFOID:0000000007577640

NOTE:
• Perform self-diagnoses with CONSULT before performing symptom diagnosis. If any DTC is detected, per-

form the corresponding diagnosis.

• Check that refrigerant is enclosed in cooler cycle normally. If refrigerant amount is shortage from proper

amount, perform the inspection of refrigerant leakage.

CHECK MAGNET CLUTCH OPERATION

Check magnet clutch. Refer to

HAC-77, "Component Function Check"

Does it operate normally?

YES

>> GO TO 2.

>> Repair or replace malfunctioning parts.

CHECK REFRIGERANT PRESSURE SENSOR

Check refrigerant pressure sensor. Refer to

EC-512, "Component Function Check"

Is the inspection result normal?

YES

>> GO TO 3.

>> Repair or replace malfunctioning parts.

CHECK A/C ON SIGNAL

Check A/C ON signal. Refer to

HAC-69, "Component Function Check"

Is inspection result normal?

YES

>> GO TO 4.

>> Repair or replace malfunctioning parts.

CHECK BLOWER FAN ON SIGNAL

Check blower fan ON signal. Refer to

HAC-71, "Component Function Check"

Is the inspection result normal?

YES

>> GO TO 5.

>> Repair or replace malfunctioning parts

CHECK BCM OUTPUT SIGNAL

With CONSULT

Select “DATA MONITOR” mode of “ENGINE” using CONSULT.

Select “AIR COND SIG” and “HEATER FAN SW”, and check status under the following conditions.

Is the inspection result normal?

YES

>> Replace IPDM E/R. Refer to

PCS-31, "Removal and Installation"

>> Replace BCM. Refer to

BCS-80, "Removal and Installation"

Monitor item

Condition

Status

AIR COND SIG

A/C switch

OFF (A/C indicator: OFF)

Off

ON (A/C indicator: ON)

HEATER FAN SW

Blower motor

OFF

Off

Revision: 2011 October

2012 JUKE

HAC-84

< REMOVAL AND INSTALLATION >

[AUTOMATIC AIR CONDITIONING]

CONTROLLER

REMOVAL AND INSTALLATION

CONTROLLER

Removal and Installation

INFOID:0000000007577641

REMOVAL

Remove multi display unit. Refer to

IP-12, "Removal and Installation"

INSTALLATION

Install in the reverse order of removal.

Revision: 2011 October

2012 JUKE

A/C AUTO AMP.

HAC-85

< REMOVAL AND INSTALLATION >

[AUTOMATIC AIR CONDITIONING]

HAC

A/C AUTO AMP.

Removal and Installation

INFOID:0000000007577642

REMOVAL

Remove audio unit. Refer to the following.
• Refer to

AV-59, "Removal and Installation"

. (Without navigation)

• Refer to

AV-120, "Removal and Installation"

. (With navigation)

Remove inside key antenna (instrument center). Refer to

DLK-162, "INSTRUMENT CENTER : Removal

and Installation"

Remove fixing screws (A), and then remove A/C auto amp..

INSTALLATION

Install in the reverse order of removal.

JMIIA0894ZZ

Revision: 2011 October

2012 JUKE

HAC-86

< REMOVAL AND INSTALLATION >

[AUTOMATIC AIR CONDITIONING]

AMBIENT SENSOR

AMBIENT SENSOR

Removal and Installation

INFOID:0000000007577643

REMOVAL

Remove bumper fascia assembly. Refer to

EXT-12, "Removal and Installation"

Disengage fixing pawl, and then remove ambient sensor (1).

Disconnect ambient sensor connector (2), and then remove
ambient sensor.

INSTALLATION

Install in the reverse order of removal.

: Pawl

JMIIA0895ZZ

Revision: 2011 October

2012 JUKE

IN-VEHICLE SENSOR

HAC-87

< REMOVAL AND INSTALLATION >

[AUTOMATIC AIR CONDITIONING]

HAC

IN-VEHICLE SENSOR

Removal and Installation

INFOID:0000000007577644

REMOVAL

Remove instrument lower panel LH. Refer to

IP-12, "Removal and Installation"

Remove fixing screw, and then remove in-vehicle sensor.

INSTALLATION

Install in the reverse order of removal.

Revision: 2011 October

2012 JUKE

HAC-88

< REMOVAL AND INSTALLATION >

[AUTOMATIC AIR CONDITIONING]

SUNLOAD SENSOR

SUNLOAD SENSOR

Removal and Installation

INFOID:0000000007577645

REMOVAL

Remove switch panel. Refer to

IP-12, "Removal and Installation"

Disconnect sunload sensor connector, and then remove sunload sensor.

INSTALLATION

Install in the reverse order of removal.

Revision: 2011 October

2012 JUKE

INTAKE SENSOR

HAC-89

< REMOVAL AND INSTALLATION >

[AUTOMATIC AIR CONDITIONING]

HAC

INTAKE SENSOR

Exploded View

INFOID:0000000007577646

Refer to

HA-38, "Exploded View (Automatic Air Conditioning)"

Removal and Installation

INFOID:0000000007577647

REMOVAL

Remove evaporator assembly. Refer to

HA-45, "EVAPORATOR : Removal and Installation"

Remove intake sensor from evaporator.

INSTALLATION

Note the following items, and then install in the order of removal.

CAUTION:

• Replace O-rings with new ones. Then apply the compressor oil to them when installing.
• Mark the mounting position of intake sensor bracket prior to removal so that the reinstalled sensor

can be located in the same position.

• Never rotate the bracket insertion part when removing and installing the intake sensor.
• Check for leakages when recharging refrigerant. Refer to

HA-16, "Leak Test"

Revision: 2011 October

2012 JUKE

HAC-90

< REMOVAL AND INSTALLATION >

[AUTOMATIC AIR CONDITIONING]

REFRIGERANT PRESSURE SENSOR

REFRIGERANT PRESSURE SENSOR

Exploded View

INFOID:0000000007577648

Refer to

HA-35, "Exploded View"

Removal and Installation

INFOID:0000000007577649

REMOVAL

Refer to

HA-37, "REFRIGERANT PRESSURE SENSOR : Removal and Installation"

INSTALLATION

Install in the reverse order of removal.

Revision: 2011 October

2012 JUKE

POWER TRANSISTOR

HAC-91

< REMOVAL AND INSTALLATION >

[AUTOMATIC AIR CONDITIONING]

HAC

POWER TRANSISTOR

Exploded View

INFOID:0000000007577650

• *1: Manual air conditioning

• *2: Automatic air conditioning

Removal and Installation

INFOID:0000000007577651

REMOVAL

Remove instrument panel assembly. Refer to

IP-12, "Removal and Installation"

Disconnect power transistor connector.

Slide power transistor (1) to the left while pressing lever (A), and
then remove power transistor.

INSTALLATION

Install in the reverse order of removal.

A/C unit assembly

Blower fan resistor*

Sub harness*

Power transistor*

Sub harness*

Blower motor

JPIIA1549ZZ

JPIIA1636ZZ

Revision: 2011 October

2012 JUKE

HAC-92

< REMOVAL AND INSTALLATION >

[AUTOMATIC AIR CONDITIONING]

DOOR MOTOR

DOOR MOTOR

Exploded View

INFOID:0000000007577652

LEFT SIDE

RIGHT SIDE

A/C unit assembly

Intake door lever

Intake door motor

Air mix door motor

Upper air mix door rod

Upper air mix door lever

Lower air mix door lever

Lower air mix door rod

JPIIA1557ZZ

Revision: 2011 October

2012 JUKE

DOOR MOTOR

HAC-93

< REMOVAL AND INSTALLATION >

[AUTOMATIC AIR CONDITIONING]

HAC

INTAKE DOOR MOTOR

INTAKE DOOR MOTOR : Removal and Installation

INFOID:0000000007577653

REMOVAL

Remove instrument lower panel LH. Refer to

IP-12, "Removal and Installation"

Remove fixing screws (A), and then remove intake door motor
(1).

Disconnect intake door motor connector (2).

INSTALLATION

Install in the reverse order of removal.

MODE DOOR MOTOR

MODE DOOR MOTOR : Removal and Installation

INFOID:0000000007577654

REMOVAL

A/C unit assembly

Main link

Sub defroster door link

Sub defroster door rod

Mode link

Plate

Mode link rod

Sub harness

Mode door motor

10. Sub defroster door lever

11.

Center ventilator and defroster door link

12. Plate

13. Center ventilator and defroster door rod 14. Center ventilator and defroster door lever

JPIIA1558ZZ

JMIIA0897ZZ

Revision: 2011 October

2012 JUKE

HAC-94

< REMOVAL AND INSTALLATION >

[AUTOMATIC AIR CONDITIONING]

DOOR MOTOR

Remove glove box assembly Refer to

IP-12, "Removal and Installation"

Remove foot duct RH. Refer to

VTL-12, "FOOT DUCT : Removal and Installation"

Disconnect mode link rod from mode door motor.

Remove fixing screws (A), and then remove mode door motor
(1).

Disconnect mode door motor connector (2).

INSTALLATION

Install in the reverse order of removal.

AIR MIX DOOR MOTOR

AIR MIX DOOR MOTOR : Removal and Installation

INFOID:0000000007577655

REMOVAL

Set the temperature at full cold.

CAUTION:

Always perform the above procedure when removing air mix door motor. Otherwise, air mix door
may interfere in A/C unit assembly may be damaged.

Remove instrument lower panel LH. Refer to

IP-12, "Removal and Installation"

Remove fixing screws (A), and then remove air mix door motor
(1).

Disconnect air mix door motor connector (2).

INSTALLATION

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

CAUTION:

After installing door motor, perform door motor starting position. Refer to

HAC-44, "Work Procedure"

JMIIA0896ZZ

JMIIA0898ZZ

Revision: 2011 October

2012 JUKE

PRECAUTIONS

HAC-95

< PRECAUTION >

[MANUAL AIR CONDITIONING]

HAC

PRECAUTION

PRECAUTIONS

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

INFOID:0000000007577656

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.

Revision: 2011 October

2012 JUKE