Nissan Leaf. Instruction — part 804
COMPONENT PARTS
HAC-219
< SYSTEM DESCRIPTION >
[AUTO A/C (WITHOUT HEAT PUMP)]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
A. Back side of A/C unit
B. Left side of A/C unit
C. Evaporator
D. Right side of A/C unit
E. Behind glove box
No.
Component
Description
1.
Sunload sensor
Refer to
.
2.
In-vehicle sensor
Refer to
.
3.
A/C auto amp.
Refer to
4.
Power transistor
Refer to
HAC-25, "A/C UNIT ASSEMBLY : Power Transistor"
.
5.
Aspirator
Refer to
HAC-22, "A/C UNIT ASSEMBLY : Aspirator"
ALIIA0798ZZ
HAC-220
< SYSTEM DESCRIPTION >
[AUTO A/C (WITHOUT HEAT PUMP)]
COMPONENT PARTS
A/C UNIT ASSEMBLY
A/C UNIT ASSEMBLY : Aspirator
INFOID:0000000010121925
The aspirator generates vacuum by the air blown from the A/C unit
and draws the air of the passenger room into the in-vehicle sensor
via the aspirator duct.
6.
Air mix door motor
Refer to
HAC-22, "A/C UNIT ASSEMBLY : Air Mix Door Motor"
7.
Intake door motor
Refer to
HAC-23, "A/C UNIT ASSEMBLY : Intake Door Motor"
.
8.
PTC heater outlet air and A/C unit case
temperature sensor assembly
• PTC heater outlet air temperature sensor:
: PTC Heater Outlet Air Temperature Sensor"
.
• A/C unit case temperature sensor:
HAC-22, "A/C UNIT ASSEMBLY : A/C
9.
Intake sensor
Refer to
HAC-22, "A/C UNIT ASSEMBLY : Intake Sensor"
.
10.
Blower motor
Refer to
HAC-24, "A/C UNIT ASSEMBLY : Blower Motor"
11.
PTC heater
Refer to
12.
Mode door motor
Refer to
HAC-23, "A/C UNIT ASSEMBLY : Mode Door Motor"
13.
VCM
• A/C CAN
Inputs a refrigerant pressure sensor signal and transmits it to the A/C auto
amp. via CAN communication.
• CAN A/C
Calculates each input signal and transmits a timer A/C request signal, re-
mote climate control request signal, wake up request signal and deice per-
mission signal via CAN communication to the A/C auto amp.
• A/C CAN A/C
Controls the high voltage system and transmits an A/C maximum power
signal via CAN communication to the A/C auto amp.
• ECO A/C ECO
Transmits an ECO mode request signal to the A/C auto amplifier during
ECO mode control.
• AV C/U A/C
Transfers a timer/remote setting temperature signal that is received from
AV control unit to the A/C auto amp.
• CAN A/C
Receives a cooling fan speed request signal from the A/C auto amp. via
CAN communication for cooling fan control.
• CAN A/C
Receives a timer A/C operation signal from the A/C auto amp. via CAN
communication for timer A/C-heater timer operation start time calculation.
• CAN A/C
Receives a deice request signal from the A/C auto amp. via CAN commu-
nication for deice control.
• CAN A/C AV C/U
Receives an A/C display signal from the A/C auto amp. via CAN communi-
cation, then transmits it to AV control unit.
EVC-15, "Component Parts Location"
for details installation loca-
tion.
No.
Component
Description
RJIA1804E
COMPONENT PARTS
HAC-221
< SYSTEM DESCRIPTION >
[AUTO A/C (WITHOUT HEAT PUMP)]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
A/C UNIT ASSEMBLY : Intake Sensor
INFOID:0000000010121926
Intake sensor measures evaporator fin temperature. This sensor
uses a thermistor that decreases electrical resistance as tempera-
ture increases.
A/C UNIT ASSEMBLY : PTC Heater Outlet Air Temperature Sensor
INFOID:0000000010121927
PTC heater outlet air temperature sensor measures the air tempera-
ture immediately after the air passes the PTC heater core. This sen-
sor uses a thermistor that decreases electrical resistance as
temperature increases.
A/C UNIT ASSEMBLY : A/C Unit Case Temperature Sensor
INFOID:0000000010121928
A/C unit case temperature sensor measures the A/C unit case tem-
perature around the PTC heater core. This sensor uses a thermistor
that decreases electrical resistance as temperature increases.
A/C UNIT ASSEMBLY : Air Mix Door Motor
INFOID:0000000010121929
DESCRIPTION
• The step motor type motor is adopted for air mix door motor.
• When the drive signal from the A/C auto amp. is input into the motor, the step motor inside the motor rotates
by the number of steps corresponding to the drive signal and stops at the target door position.
• The rotational movement of the motor is transmitted via the rod and lever to the air mix doors (upper air mix
door, lower air mix door), changing the discharge air temperature.
AIR MIX DOOR MOTOR DRIVE METHOD
• The 4 drive coils are excited in sequence in order to drive the motor.
JSIIA1630GB
JSIIA1768GB
JSIIA1769GB
HAC-222
< SYSTEM DESCRIPTION >
[AUTO A/C (WITHOUT HEAT PUMP)]
COMPONENT PARTS
• Direction of rotation is changeable by recomposing the pattern of excitation.
A/C UNIT ASSEMBLY : Mode Door Motor
INFOID:0000000010121930
DESCRIPTION
• The step motor type motor is adopted for mode door motor.
• When the drive signal from the A/C auto amp. is input into the motor, the step motor inside the motor rotates
by the number of steps corresponding to the drive signal and stops at the target door position.
• The rotational movement of the motor is transmitted via the rod, link, and lever to the mode doors (center
ventilator, defrost door, sub-defrost door, side ventilator door, and foot door), changing the air outlets.
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 the pattern of excitation.
A/C UNIT ASSEMBLY : Intake Door Motor
INFOID:0000000010121931
• Intake door motor consists of a motor that drives the door and PBR (Potentiometer Balance Resister) that
detects door position.
• Motor operates according to drive signal from A/C auto amp.
• Motor rotational movement is transmitted via the lever to the intake door, changing the air inlet.
JSIIA1655GB
JZIIA0033GB
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