Nissan Qashqai J11. Manual — part 1094
HAC-12
< SYSTEM DESCRIPTION >
[AUTOMATIC AIR CONDITIONING]
COMPONENT PARTS
STOP/START SYSTEM
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
ECH-13, "Component Parts Location"
(HR engine models),
25, "ENGINE CONTROL SYSTEM : Component Parts Location"
(MR16DDT engine models),
ECM-627, "ENGINE CONTROL SYSTEM :
(MR20DD engine models),
(K9K engine models) or
(R9M engine models) for detailed installation location.
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-17, "A/C UNIT ASSEMBLY : PTC Heater"
Blower motor
HAC-17, "A/C UNIT ASSEMBLY : Blower Motor"
No.
Component
Function
COMPONENT PARTS
HAC-13
< SYSTEM DESCRIPTION >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
STOP/START SYSTEM : Component Parts Location
INFOID:0000000010499374
Left side of A/C unit assembly
Right side of A/C unit assembly
JMIIA3544ZZ
HAC-14
< SYSTEM DESCRIPTION >
[AUTOMATIC AIR CONDITIONING]
COMPONENT PARTS
A/C UNIT ASSEMBLY
A/C UNIT ASSEMBLY : Aspirator
INFOID:0000000010432154
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:0000000010432155
Intake sensor measures evaporator temperature (through air tem-
perature). 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 (Driver Side)
INFOID:0000000010432156
DESCRIPTION
No.
Component
Function
Ambient sensor
Refer to
ECM
ECM transmits engine coolant temperature signal and stop/start status sig-
nal to A/C auto amp. via CAN communication line.
ECM receives stop/start permit signal from A/C auto amp. via CAN commu-
nication line.
Refer to
ECH-13, "Component Parts Location"
(HR engine models),
25, "ENGINE CONTROL SYSTEM : Component Parts Location"
(MR16DDT engine models),
ECK-12, "Component Parts Location"
engine models) or
EC9-14, "Component Parts Location"
(R9M engine
models) for detailed installation location.
Sunload sensor
In-vehicle sensor
Combination meter
Combination meter transmits ambient temperature signal to A/C auto amp.
via CAN communication line.
A/C control
Power transistor
HAC-17, "A/C UNIT ASSEMBLY : Power Transistor"
Intake sensor
HAC-14, "A/C UNIT ASSEMBLY : Intake Sensor"
Intake door motor
HAC-16, "A/C UNIT ASSEMBLY : Intake Door Motor"
A/C auto amp.
Blower motor
HAC-17, "A/C UNIT ASSEMBLY : Blower Motor"
RJIA1804E
JMIIA3561GB
COMPONENT PARTS
HAC-15
< SYSTEM DESCRIPTION >
[AUTOMATIC AIR CONDITIONING]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
• The step motor system is adopted for air mix door motor (driver side).
• 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.
• Rotation of motor is transmitted to air mix door (driver side) by link and lever, then air flow temperature
(driver side) is switched.
AIR MIX DOOR MOTOR (DRIVER SIDE) 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 : Air Mix Door Motor (Passenger Side)
INFOID:0000000010432157
DESCRIPTION
• The step motor system is adopted for air mix door motor (passenger side).
• 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.
• Rotation of motor is transmitted to air mix door (passenger side) by link and lever, then air flow temperature
(passenger side) is switched.
AIR MIX DOOR MOTOR (PASSENGER SIDE) 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 : Mode Door Motor
INFOID:0000000010432158
DESCRIPTION
• 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.
JMIIA3562GB
JMIIA3563GB
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