Nissan Juke F15. Instruction — part 843
COMPONENT PARTS
HAC-7
< SYSTEM DESCRIPTION >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
SYSTEM DESCRIPTION
COMPONENT PARTS
Component Parts Location
INFOID:0000000012199989
1.
SYSTEM : Component Parts Loca-
tion"
2.
Magnet clutch
3.
Refrigerant pressure sensor
4.
Ambient sensor
5.
ECM
Refer to
TROL SYSTEM :
Component Parts Location"
.
6.
IPDM E/R
Refer to
7.
Multi display unit
8.
Intake door motor
9.
Air mix door motor
10. Intake sensor
11. In-vehicle sensor
12. Power transistor
13. Aspirator
14. A/C auto amp.
15. Blower motor
16. Mode door motor
17. Sunload sensor
JMIIA1048ZZ
HAC-8
< SYSTEM DESCRIPTION >
[AUTOMATIC AIR CONDITIONING]
COMPONENT PARTS
Component Description
INFOID:0000000012199990
A/C UNIT ASSEMBLY
A/C UNIT ASSEMBLY : Aspirator
INFOID:0000000012199991
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:0000000012199992
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:0000000012199993
• The step motor system is adopted for air mix door motor.
• When a drive signal is input from A/C auto amp. to door motor, a step motor built into the door motor rotates
according to the drive signal, and then stops at the target door position. Refer to
• Rotation of motor is transmitted to air mix door (upper air mix door and lower air mix door) by lod and lever.
Air flow temperature is switched.
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
F.
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
Power transistor
Multi display unit
A/C auto amp.
BCM
ECM
IPDM E/R
Ambient sensor
In-vehicle sensor
Sunload sensor
Refrigerant pressure sensor
Magnet clutch
RJIA1804E
COMPONENT PARTS
HAC-9
< SYSTEM DESCRIPTION >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
A/C UNIT ASSEMBLY : Mode Door Motor
INFOID:0000000012199994
• The step motor system is adopted for mode door motor.
• When a drive signal is input from A/C auto amp. to door motor, a step motor built into the door motor rotates
according to the drive signal, and then stops at the target door position. Refer to
• Rotation of motor is transmitted to mode door (center ventilator and defroster door, sub defroster door, side
ventilator door, and foot door) by link, lod, and lever. Air outlet is switched.
A/C UNIT ASSEMBLY : Intake Door Motor
INFOID:0000000012199995
• Intake door motor consists of motor that drives door and PBR (Potentio Balance Register) that detects door
position.
• Motor operates intake door according to control signal from A/C auto amp. Refer to
.
• Rotation of motor is transmitted to intake door by lever. Air inlet is switched.
• PBR (Potentio Balance Register) transmits PBR feedback signal to A/C auto amp. according to motor posi-
tion.
• According to PBR feedback signal, A/C auto amp. monitors that motor is in an appropriate door position.
A/C UNIT ASSEMBLY : Blower Motor
INFOID:0000000012199996
• 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.
A/C UNIT ASSEMBLY : Power Transistor
INFOID:0000000012199997
• Power transistor, 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.
• Power transistor 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.
JPIIA1575ZZ
ZHA152H
JPIIA1634ZZ
HAC-10
< SYSTEM DESCRIPTION >
[AUTOMATIC AIR CONDITIONING]
COMPONENT PARTS
Multi Display Unit
INFOID:0000000012199998
• 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:0000000012199999
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:0000000012200000
BCM transmits A/C ON signal and blower fan ON signal from A/C auto amp. to ECM via CAN communication
line.
ECM
INFOID:0000000012200001
• 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:0000000012200002
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.
Ambient Sensor
INFOID:0000000012200003
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:0000000012200004
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:0000000012200005
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:0000000012200006
DESCRIPTION
• The refrigerant pressure sensor converts high-pressure side refrigerant pressure into voltage and outputs it
to ECM.
• ECM operates cooler cycle protection and cooling fan speed control according to voltage value that is input.
STRUCTURE AND OPERATION
PBIB2657E
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст