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), 

ECM-

25, "ENGINE CONTROL SYSTEM : Component Parts Location"

 

(MR16DDT engine models), 

ECM-627, "ENGINE CONTROL SYSTEM : 

Component Parts Location"

 (MR20DD engine models), 

ECK-12, "Compo-

nent Parts Location"

 (K9K engine models) or 

EC9-14, "Component Parts Lo-

cation"

 (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 

HAC-19, "Ambient Sensor"

.

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), 

ECM-

25, "ENGINE CONTROL SYSTEM : Component Parts Location"

 

(MR16DDT engine models), 

ECK-12, "Component Parts Location"

 (K9K 

engine models) or 

EC9-14, "Component Parts Location"

 (R9M engine 

models) for detailed installation location.

Sunload sensor

HAC-19, "Sunload Sensor"

In-vehicle sensor

HAC-19, "In-vehicle Sensor"

Combination meter

Combination meter transmits ambient temperature signal to A/C auto amp. 
via CAN communication line.

A/C control

HAC-18, "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.

HAC-19, "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