Juke F15 (2012 year). Service Repair Manual — part 240
INTAKE SENSOR
HAC-95
< REMOVAL AND INSTALLATION >
[TYPE 1]
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INTAKE SENSOR
Exploded View
INFOID:0000000006545859
HA-97, "Exploded View (Automatic Air Conditioning)"
.
Removal and Installation
INFOID:0000000006545860
REMOVAL
1.
Remove evaporator assembly. Refer to
HA-115, "EVAPORATOR : Removal and Installation"
.
2.
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
HAC-96
< REMOVAL AND INSTALLATION >
[TYPE 1]
REFRIGERANT PRESSURE SENSOR
REFRIGERANT PRESSURE SENSOR
Exploded View
INFOID:0000000006545861
.
Removal and Installation
INFOID:0000000006545862
REMOVAL
HA-96, "REFRIGERANT PRESSURE SENSOR : Removal and Installation"
INSTALLATION
Install in the reverse order of removal.
POWER TRANSISTOR
HAC-97
< REMOVAL AND INSTALLATION >
[TYPE 1]
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POWER TRANSISTOR
Exploded View
INFOID:0000000006545863
• *1: Manual air conditioner
• *2: Automatic air conditioner
Removal and Installation
INFOID:0000000006545864
REMOVAL
1.
Remove instrument panel assembly. Refer to
IP-13, "Removal and Installation"
. (LHD models)
2.
Remove glove box assembly. Refer to
IP-13, "Removal and Installation"
. (RHD models)
3.
Disconnect power transistor connector.
4.
Slide power transistor (1) to the left while pressing lever (A), and
then remove power transistor.
INSTALLATION
Install in the reverse order of removal.
1.
A/C unit assembly
2.
Blower fan resistor*
1
3.
Sub harness*
1
4.
Power transistor*
2
5.
Sub harness*
2
6.
Blower motor
JPIIA1549ZZ
JPIIA1636ZZ
HAC-98
< REMOVAL AND INSTALLATION >
[TYPE 1]
DOOR MOTOR
DOOR MOTOR
Exploded View
INFOID:0000000006545865
LEFT SIDE
RIGHT SIDE
1.
A/C unit assembly
2.
Intake door lever
3.
Intake door motor
4.
Air mix door motor
5.
Upper air mix door rod
6.
Upper air mix door lever
7.
Lower air mix door lever
8.
Lower air mix door rod
JPIIA1557ZZ
DOOR MOTOR
HAC-99
< REMOVAL AND INSTALLATION >
[TYPE 1]
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INTAKE DOOR MOTOR
INTAKE DOOR MOTOR : Removal and Installation
INFOID:0000000006545866
REMOVAL
1.
Remove instrument lower panel LH. Refer to
IP-13, "Removal and Installation"
. (LHD models)
2.
Remove glove box assembly. Refer to
IP-13, "Removal and Installation"
. (RHD models)
3.
Remove fixing screws (A), and then remove intake door motor
(1) from A/C unit assembly.
4.
Disconnect intake door motor connector (2).
INSTALLATION
Install in the reverse order of removal.
MODE DOOR MOTOR
1.
A/C unit assembly
2.
Main link
3.
Sub defroster door link
4.
Sub defroster door rod
5.
Mode link
6.
Plate
7.
Mode link rod
8.
Sub harness
9.
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
HAC-100
< REMOVAL AND INSTALLATION >
[TYPE 1]
DOOR MOTOR
MODE DOOR MOTOR : Removal and Installation
INFOID:0000000006545867
REMOVAL
1.
Remove glove box assembly Refer to
IP-13, "Removal and Installation"
. (LHD models)
2.
Remove instrument lower panel RH. Refer to
IP-13, "Removal and Installation"
. (RHD models)
3.
Remove foot duct RH. Refer to
VTL-14, "FOOT DUCT : Removal and Installation"
4.
Disconnect mode link rod from mode door motor.
5.
Remove fixing screws (A), and then remove mode door motor
(1).
6.
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:0000000006545868
REMOVAL
1.
Remove instrument lower panel LH. Refer to
IP-13, "Removal and Installation"
. (LHD models)
2.
Remove glove box assembly. Refer to
IP-13, "Removal and Installation"
. (RHD models)
3.
Remove fixing screws (A), and then remove air mix door motor
(1) from A/C unit assembly.
4.
Disconnect air mix door motor connector (2).
INSTALLATION
Install in the reverse order of removal.
JMIIA0896ZZ
JMIIA0898ZZ
APPLICATION NOTICE
HAC-101
< HOW TO USE THIS MANUAL >
[TYPE 2]
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HOW TO USE THIS MANUAL
APPLICATION NOTICE
Information
INFOID:0000000006626855
Check the vehicle type to use the service information in this section.
Destination
Service information
Automatic air conditioning (4WD models)
“TYPE 1”
Automatic air conditioning (2WD models)
“TYPE 2”
Manual air conditioning (4WD models)
“TYPE 3”
Manual air conditioning (2WD models)
“TYPE 4”
Manual heater
“TYPE 5”
HAC-102
< PRECAUTION >
[TYPE 2]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000006626860
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. Information necessary to service the system safely is included in the “SRS AIR BAG” and
“SEAT BELT” of this Service Manual.
The vehicle may be equipped with a passenger air bag deactivation switch. Because no rear seat exists where
a rear-facing child restraint can be placed, the switch is designed to turn off the passenger air bag so that a
rear-facing child restraint can be used in the front passenger seat. The switch is located in the center of the
instrument panel, near the ashtray. When the switch is turned to the ON position, the passenger air bag is
enabled and could inflate for certain types of collision. When the switch is turned to the OFF position, the pas-
senger air bag is disabled and will not inflate. A passenger air bag OFF indicator on the instrument panel lights
up when the passenger air bag is switched OFF. The driver air bag always remains enabled and is not affected
by the passenger air bag deactivation switch.
WARNING:
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision which 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 the “SRS AIR BAG”.
• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
• The vehicle may be equipped with a passenger air bag deactivation switch which can be operated by
the customer. When the passenger air bag is switched OFF, the passenger air bag is disabled and
will not inflate. When the passenger air bag is switched ON, the passenger air bag is enabled and
could inflate for certain types of collision. After SRS maintenance or repair, make sure the passenger
air bag deactivation switch is in the same position (ON or OFF) as when the vehicle arrived for ser-
vice.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the
ignition ON or engine running, DO NOT 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.
COMPONENT PARTS
HAC-103
< SYSTEM DESCRIPTION >
[TYPE 2]
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SYSTEM DESCRIPTION
COMPONENT PARTS
AUTOMATIC AIR CONDITIONING SYSTEM
AUTOMATIC AIR CONDITIONING SYSTEM : Component Parts Location
INFOID:0000000006546650
JMIIA1056ZZ
HAC-104
< SYSTEM DESCRIPTION >
[TYPE 2]
COMPONENT PARTS
AUTOMATIC AIR CONDITIONING SYSTEM : Component Description
INFOID:0000000006546651
PTC HEATER CONTROL SYSTEM
1.
BCM
• With Intelligent Key: Refer to
6, "BODY CONTROL SYSTEM :
Component Parts Location"
.
• Without Intelligent Key: Refer to
BCS-96, "BODY CONTROL SYS-
TEM : Component Parts Loca-
tion"
2.
Magnet clutch
3.
Refrigerant pressure sensor
4.
Ambient sensor
5.
ECM
• HR16DE: Refer to
GINE CONTROL SYSTEM :
Component Parts Location"
.
• MR16DDT: Refer to
GINE CONTROL SYSTEM :
Component Parts Location"
.
• K9K: Refer to
6.
IPDM E/R
• With Intelligent Key: Refer to
• Without Intelligent Key: Refer to
PCS-37, "Component Parts Loca-
tion"
.
7.
Multi display unit
8.
Intake door motor
9.
Fan control amp.
10. Air mix door motor
11.
Intake sensor
12. In-vehicle sensor
13. Aspirator
14. A/C auto amp.
15. Blower motor
16. Mode door motor
17. Sunload sensor
A.
Left side of A/C unit assembly
B.
Instrument lower panel LH is re-
moved
C.
Back side of A/C unit assembly
D.
Multi display unit is removed
E.
Right side of A/C unit assembly
C.
Right side of switch panel
Component
Description
A/C unit assembly
Aspirator
Intake sensor
Air mix door motor
Mode door motor
Intake door motor
Blower motor
Fan control amp.
Multi display unit
A/C auto amp.
BCM
ECM
IPDM E/R
Ambient sensor
In-vehicle sensor
Sunload sensor
Refrigerant pressure sensor
Magnet clutch
COMPONENT PARTS
HAC-105
< SYSTEM DESCRIPTION >
[TYPE 2]
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PTC HEATER CONTROL SYSTEM : Component Parts Location
INFOID:0000000006659829
PTC HEATER CONTROL SYSTEM : Component Description
INFOID:0000000006659830
1.
BCM
• With Intelligent Key: Refer to
6, "BODY CONTROL SYSTEM :
Component Parts Location"
.
• Without Intelligent Key: Refer to
BCS-96, "BODY CONTROL SYS-
TEM : Component Parts Location"
.
2.
Ambient sensor
3.
.
4.
Multi display unit
5.
PTC heater
6.
A/C auto amp.
A.
Left side of A/C unit assembly
B.
Multi display unit is removed
JMIIA1061ZZ
Component parts
Description
A/C unit assembly
PTC heater
Ambient sensor
Multi display unit
A/C auto amp.
A/C auto amp. controls PTC heater control system by inputting and calcu-
lating signals from each sensor and fan control dial.
BCM
BCM transmits electrical load signal (high beam request signal, low beam
request signal, rear window defogger ON signal, and others) to A/C auto
amp. via CAN communication line.
ECM
ECM transmits engine speed signal, engine coolant temperature signal,
cooling fan speed request signal, and electrical power cut freeze signal to
A/C auto amp. via CAN communication line.
HAC-106
< SYSTEM DESCRIPTION >
[TYPE 2]
COMPONENT PARTS
A/C UNIT ASSEMBLY
A/C UNIT ASSEMBLY : Aspirator
INFOID:0000000006546652
The aspirator generates the vacuum by the air blown from the A/C
unit assembly and draws the air of the passenger room to the in-
vehicle sensor area via the aspirator duct.
A/C UNIT ASSEMBLY : Intake Sensor
INFOID:0000000006546653
Intake sensor measures temperature of 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.
A/C UNIT ASSEMBLY : Air Mix Door Motor
INFOID:0000000006546654
• Air mix door motor consists of motor that drives door, PBR (Potentio Balance Register) that detects door
position and LCU (Local Control Unit) that perform multiplex communication control (LIN) with A/C auto amp.
Refer to
HAC-114, "AUTOMATIC AIR CONDITIONING SYSTEM : Door Control"
.
• Rotation of motor is transmitted to air mix door (upper air mix door, lower air mix door, max. cool door) by
link, rod, and lever. Air flow temperature is switched.
A/C UNIT ASSEMBLY : Mode Door Motor
INFOID:0000000006546655
• Mode door motor consists of motor that drives door, PBR (Potentio Balance Register) that detects door posi-
tion and LCU (Local Control Unit) that perform multiplex communication control (LIN) with A/C auto amp.
Refer to
HAC-114, "AUTOMATIC AIR CONDITIONING SYSTEM : Door Control"
.
• Rotation of motor is transmitted to mode door (center ventilator door, side ventilator door, foot door, and
defroster door) by link, rod, and lever. Air outlet is switched.
A/C UNIT ASSEMBLY : Intake Door Motor
INFOID:0000000006546656
• Intake door motor consists of motor that drives door, PBR (Potentio Balance Register) that detects door
position and LCU (Local Control Unit) that perform multiplex communication control (LIN) with A/C auto amp.
Refer to
HAC-114, "AUTOMATIC AIR CONDITIONING SYSTEM : Door Control"
.
• Rotation of motor is transmitted to intake door by link and lever. Air inlet is switched.
A/C UNIT ASSEMBLY : Blower Motor
INFOID:0000000006546657
• The blower motor utilizes a brush-less motor with a rotating mag-
net.
• Quietness is improved over previous motors where the brush was
the point of contact and the coil rotated.
RJIA1804E
JPIIA1575ZZ
COMPONENT PARTS
HAC-107
< SYSTEM DESCRIPTION >
[TYPE 2]
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A/C UNIT ASSEMBLY : Fan Control Amp.
INFOID:0000000006546658
• Fan control amp., that uses MOS field effect transistor, is adopted
for blower motor speed control.
NOTE:
MOS field effect transistor is a transistor for which the gate portion
is composed of a metal electrode on an oxide layer of semiconduc-
tor. Field effect transistor is controlled by voltage, while ordinary
transistor is controlled by current. Electrode of field effect transistor
is called source, drain, or gate, while electrode of ordinary transis-
tor is called emitter, collector, or base.
• Fan control amp. continuously controls voltage to blower motor,
according to gate voltage from A/C auto amp.
• This power transistor does not require a HI relay even when the
maximum voltage is applied to blower motor at HI status, because voltage drop is nominal.
A/C UNIT ASSEMBLY : PTC Heater
INFOID:0000000006659833
Heat element is heated and air flow temperature is increased by power supply from PTC relay.
Multi Display Unit
INFOID:0000000006696889
• Multi display unit integrates display and operation switches.
• Operation of each switch (A/C operation signal) and setting status (A/C ECO setting signal and ECO mode
signal) are transmitted to A/C auto amp. via CAN communication.
• Operation status of air conditioning system is indicated in the display according to A/C display signal that is
received from A/C auto amp.
A/C Auto Amp.
INFOID:0000000006546659
A/C auto amp. controls automatic air conditioning system by inputting and calculating signals from each sen-
sor and each switch. A/C auto amp. has self-diagnosis function. Diagnosis of automatic air conditioning sys-
tem can be performed quickly.
BCM
INFOID:0000000006546660
BCM transmits A/C ON signal and blower fan ON signal from A/C auto amp. to ECM via CAN communication
line.
ECM
INFOID:0000000006546661
• ECM, when receiving A/C ON signal and blower fan ON signal from BCM, transmits A/C compressor request
signal to IPDM E/R via CAN communication according to status of the engine and refrigerant pressure.
• ECM transmits engine coolant temperature signal to A/C auto amp. via CAN communication line.
IPDM E/R
INFOID:0000000006546662
A/C relay is integrated in IPDM E/R. IPDM E/R operates A/C relay when A/C compressor request signal is
received from ECM via CAN communication line.
ZHA152H
JPIIA0217ZZ
HAC-108
< SYSTEM DESCRIPTION >
[TYPE 2]
COMPONENT PARTS
Ambient Sensor
INFOID:0000000006546664
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:0000000006546665
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:0000000006546666
Sunload sensor measures sunload amount. This sensor converts sunload amount to voltage signal by photo-
diode and transmits to A/C auto amp.
Refrigerant Pressure Sensor
INFOID:0000000006546667
DESCRIPTION
• The refrigerant pressure sensor converts high-pressure side refrigerant pressure into voltage and outputs it
to ECM.
• ECM operates cooling system protection and idle speed control according to voltage value that is input.
STRUCTURE AND OPERATION
• The refrigerant pressure sensor is a capacitance type sensor. It consists of a pressure detection ares and a
signal processing area.
• The pressure detection area, which is a variable capacity condenser, changes internal static capacitance
according to pressure force.
• The signal processing area detects the static capacitance of the pressure detection area, converts the static
capacitance into a voltage value, and transmits the voltage value to ECM.
Magnet Clutch
INFOID:0000000006546668
Compressor is driven by the magnet clutch which is magnetized by electric power supply.
PBIB2657E
SYSTEM
HAC-109
< SYSTEM DESCRIPTION >
[TYPE 2]
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SYSTEM
AUTOMATIC AIR CONDITIONING SYSTEM
AUTOMATIC AIR CONDITIONING SYSTEM : System Diagram
INFOID:0000000006546669
AUTOMATIC AIR CONDITIONING SYSTEM : System Description
INFOID:0000000006546670
DESCRIPTION
• Automatic air conditioning system is controlled by each function of A/C auto amp., BCM, ECM and IPDM E/
R.
• Each operation of air conditioning system is transmitted from multi display unit via CAN communication. A/C
auto amp. transmits each type of indication information (A/C display signal) to multi display unit via CAN
communication. Multi display unit displays each type of indication information (A/C display signal) that is
received.
CONTROL BY A/C AUTO AMP.
•
HAC-111, "AUTOMATIC AIR CONDITIONING SYSTEM : Temperature Control"
•
HAC-111, "AUTOMATIC AIR CONDITIONING SYSTEM : Air Outlet Control"
•
HAC-111, "AUTOMATIC AIR CONDITIONING SYSTEM : Air Flow Control"
•
HAC-112, "AUTOMATIC AIR CONDITIONING SYSTEM : Air Inlet Control"
•
HAC-112, "AUTOMATIC AIR CONDITIONING SYSTEM : Compressor Control"
•
HAC-114, "AUTOMATIC AIR CONDITIONING SYSTEM : Door Control"
•
HAC-116, "AUTOMATIC AIR CONDITIONING SYSTEM : ECO Mode Control"
• Correction for input value
JMIIA1057GB
HAC-110
< SYSTEM DESCRIPTION >
[TYPE 2]
SYSTEM
Ambient temperature correction
- The A/C auto amp. inputs the temperature detected with the ambient sensor as the ambient temperature.
- Perform the correction of the temperature detected with the ambient sensor for air conditioning control.
- Select and use the initial value of ambient temperature data depending on the engine coolant temperature
when turning the ignition switch from OFF to ON. Use the detection temperature of the ambient sensor at
low coolant temperature [less than approximately 56
°
C (133
°
F)]. Use the memory data (before the ignition
switch is OFF) when the engine is warming up [approximately 56
°
C (133
°
F) or more].
- Do not perform the correction of the ambient temperature when the detection temperature of the ambient
temperature is less than approximately
−
20
°
C (–4
°
F).
Passenger room temperature correction
- The A/C auto amp. inputs the temperature detected with the in-vehicle sensor as the passenger room tem-
perature.
- Perform the correction of the temperature detected with the in-vehicle sensor for air conditioning control.
- The A/C auto amp. performs the correction so that the recognition passenger room temperature changes
depending on the difference between the detected passenger room temperature and the recognition pas-
senger room temperature. If the difference is large, the changing is early. The changing becomes slow as
the difference becomes small.
Intake temperature correction
- The A/C auto amp. inputs the temperature detected with the intake sensor as the intake temperature.
- Perform the correction of the temperature detected with the intake sensor for air conditioning control.
- The A/C auto amp. performs the correction so that the recognition intake temperature changes depending
on the difference between the detected intake temperature and the recognition intake temperature. If the dif-
ference is large, the changing is early. The changing becomes slow as the difference becomes small.
Sunload amount correction
- The A/C auto amp. inputs the sunload amount detected with the sunload sensor.
- Perform the correction of the sunload amount detected with the sunload sensor for air conditioning control.
- When the sunload amount suddenly changes, for example when entering a tunnel, perform the correction so
that the recognition sunload amount of the A/C auto amp. changes slowly.
Set temperature correction
- A/C auto amp. controls The A/C auto amp. performs the correction to the target temperature set by the tem-
perature control switch so as to match the temperature felt by the passengers depending on the ambient
temperature detected with the ambient sensor and controls it so that the interior air temperature is always
the most suitable.
CONTROL BY BCM
•
HAC-112, "AUTOMATIC AIR CONDITIONING SYSTEM : Compressor Control"
CONTROL BY ECM
•
HAC-112, "AUTOMATIC AIR CONDITIONING SYSTEM : Compressor Control"
• Cooling fan control
- HR16DE: Refer to
EC-479, "COOLING FAN CONTROL : System Description"
- MR16DDT: Refer to
EC-61, "COOLING FAN CONTROL : System Description"
- K9K: Refer to
EC-827, "COOLING FAN CONTROL : System Description"
.
CONTROL BY IPDM E/R
•
HAC-112, "AUTOMATIC AIR CONDITIONING SYSTEM : Compressor Control"
• Cooling fan control. Refer to
PCS-9, "POWER CONTROL SYSTEM : System Description"
(with Intelligent
Key) or
PCS-41, "POWER CONTROL SYSTEM : System Description"
(without Intelligent Key).
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