Nissan X-Trail 32. Manual — part 1417
COMPONENT PARTS
HAC-143
< SYSTEM DESCRIPTION >
[MANUAL AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
LHD MODELS
BCM
BCM receives each signals, and controls PTC relay.
BCM transmits idle up signal to ECM according to electrical load condition.
Refer to
BCS-6, "BODY CONTROL SYSTEM : Component Parts Location"
for detailed installation location.
Combination meter
Combination meter transmits ambient temperature signal to BCM via CAN
communication line.
PTC heater
HAC-147, "A/C UNIT ASSEMBLY : PTC Heater"
Blower motor
HAC-146, "A/C UNIT ASSEMBLY : Blower Motor"
No.
Component
Function
JMIIA3682ZZ
HAC-144
< SYSTEM DESCRIPTION >
[MANUAL AIR CONDITIONING]
COMPONENT PARTS
A/C UNIT ASSEMBLY
A/C UNIT ASSEMBLY : Intake Sensor
INFOID:0000000010939803
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.
A/C UNIT ASSEMBLY : Air Mix Door Motor
INFOID:0000000010939804
DESCRIPTION
• The step motor system is adopted for air mix door motor.
• When a drive signal is input from A/C 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.
• Rotation of motor is transmitted to air mix door by link and lever, then air flow temperature is switched.
AIR MIX DOOR MOTOR DRIVE METHOD
• The 4 drive coils are excited in sequence in order to drive the motor.
Right side of A/C unit assembly
No.
Component
Function
Ambient sensor
PTC relay-1/2/3
PTC relay is controlled by BCM, and supplies power supply to PTC heater.
ECM
ECM transmits engine speed signal, engine coolant temperature signal,
cooling fan speed request signal, and electrical power cut freeze signal to
BCM via CAN communication line.
Refer to
EC-812, "Component Parts Location"
for detailed installation loca-
tion.
Combination meter
Combination meter transmits ambient temperature signal to BCM via CAN
communication line.
BCM
BCM receives each signals, and controls PTC relay.
BCM transmits idle up signal to ECM according to electrical load condition.
Refer to
BCS-6, "BODY CONTROL SYSTEM : Component Parts Location"
for detailed installation location.
PTC heater
HAC-147, "A/C UNIT ASSEMBLY : PTC Heater"
Blower motor
HAC-146, "A/C UNIT ASSEMBLY : Blower Motor"
JSIIA1630GB
COMPONENT PARTS
HAC-145
< SYSTEM DESCRIPTION >
[MANUAL AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
• Direction of rotation is changeable by recomposing pattern of excitation.
A/C UNIT ASSEMBLY : Mode Door Motor
INFOID:0000000010939805
DESCRIPTION
• The step motor system is adopted for mode door motor.
• When a drive signal is input from A/C 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.
• Rotation of motor is transmitted to mode door (center ventilator and defroster door, sub defroster door, side
ventilator door, and foot door) by link, rod, and lever, then air outlet is switched.
MODE DOOR MOTOR DRIVE METHOD
• The 4 drive coils are excited in sequence in order to drive the motor.
• Direction of rotation is changeable by recomposing pattern of excitation.
A/C UNIT ASSEMBLY : Intake Door Motor
INFOID:0000000010939806
DESCRIPTION
• The step motor system is adopted for intake door motor.
• When a drive signal is input from A/C 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.
• Rotation of motor is transmitted to intake door by lever, then air inlet is switched.
INTAKE DOOR MOTOR DRIVE METHOD
• The 4 drive coils are excited in sequence in order to drive the motor.
JMIIA3683GB
JZIIA0033GB
HAC-146
< SYSTEM DESCRIPTION >
[MANUAL AIR CONDITIONING]
COMPONENT PARTS
• Direction of rotation is changeable by recomposing pattern of excitation.
A/C UNIT ASSEMBLY : Blower Motor
INFOID:0000000010939807
• Brush motor, that rotates coil while brush functions as contact
points, is adopted for blower motor.
• Rotation speed changes according to voltage from power transis-
tor.
A/C UNIT ASSEMBLY : Fan Control Amp.
INFOID:0000000010939808
• 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 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.
JMIIA3565GB
JMIIA3336ZZ
JMIIA0793GB
JMIIA1317ZZ
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст