Nissan March K13. Manual - part 368

HAC-6

< PRECAUTION >

[AUTOMATIC AIR CONDITIONER]

PRECAUTIONS

5.

When the repair work is completed, re-connect both battery cables. With the brake pedal released, turn
the push-button ignition switch from ACC position to ON position, then to LOCK position. (The steering
wheel will lock when the push-button ignition switch is turned to LOCK position.)

6.

Perform self-diagnosis check of all control units using CONSULT-III.

COMPONENT PARTS

HAC-7

< SYSTEM DESCRIPTION >

[AUTOMATIC AIR CONDITIONER]

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SYSTEM DESCRIPTION

COMPONENT PARTS

AUTOMATIC AIR CONDITIONING SYSTEM

AUTOMATIC AIR CONDITIONING SYSTEM : Component Parts Location

INFOID:0000000006024012

AUTOMATIC AIR CONDITIONING SYSTEM : Component Description

INFOID:0000000006024013

1.

Sunload sensor

2.

Magnet clutch

3.

Refrigerant pressure sensor

4.

Ambient sensor

5.

A/C control (A/C auto amp.)

6.

In-vehicle sensor

7.

Blower motor

8.

Mode door motor

9.

Air mix door motor

10.

Intake door motor

11.

Fan control amp.

12.

Intake sensor

A.

Located in the right side of A/C 
unit assembly

B.

Located in left side of A/C unit 
assembly

C.

Located on the evaporator

JMIIA0687ZZ

Component

Description

Sunload sensor

HAC-11, "Sunload Sensor"

Ambient sensor

HAC-10, "Ambient Sensor"

Magnet clutch

HAC-10, "COMPRESSOR : Magnet Clutch"

Refrigerant pressure sensor

XX-XX, "*****"

 

A/C control (A/C auto amp.)

HAC-11, "A/C Auto Amp."

In-vehicle sensor

HAC-11, "In-vehicle Sensor"

Blower motor

HAC-9, "A/C UNIT ASSEMBLY : Blower Motor"

HAC-8

< SYSTEM DESCRIPTION >

[AUTOMATIC AIR CONDITIONER]

COMPONENT PARTS

A/C UNIT ASSEMBLY

A/C UNIT ASSEMBLY : Air Mix Door Motor

INFOID:0000000006024035

• The air mix door motor (1) is installed to the A/C unit assembly. 
• The step motor system is adopted for air mix door motor.
• When a drive signal is input from auto amp. to door motor, a step

motor built into the door the door motor rotates according to the
drive signal, and then stops at the position of target door.

A/C UNIT ASSEMBLY : Aspirator

INFOID:0000000006043954

The aspirator (1) 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. 

Air mix door motor

HAC-8, "A/C UNIT ASSEMBLY : Air Mix Door Motor"

Power transistor

HAC-9, "A/C UNIT ASSEMBLY : Blower Motor"

Intake sensor

HAC-9, "A/C UNIT ASSEMBLY : Intake Sensor"

Mode door motor

HAC-10, "A/C UNIT ASSEMBLY : Mode Door Motor"

Intake door motor

HAC-9, "A/C UNIT ASSEMBLY : Intake Door Motor"

Component

Description

: Vehicle front

JMIIA0695ZZ

: Vehicle front

JMIIA0693ZZ

RJIA1804E

COMPONENT PARTS

HAC-9

< SYSTEM DESCRIPTION >

[AUTOMATIC AIR CONDITIONER]

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A/C UNIT ASSEMBLY : Blower Motor

INFOID:0000000006024044

• The blower motor (1) is installed in the RH side of A/C unit assem-

bly.

• The blower motor adopts the forcible air cooling system and one-

touch installation system without any screws.

A/C UNIT ASSEMBLY : Intake Door Motor

INFOID:0000000006024041

• The intake door motor (1) is installed to A/C unit assembly. 

• The A/C auto amp. sends the control signal to Intake door motor.

When intake door motor receives the control signal, intake door is
moved to appropriate position by PBR (Potentio Balance Resistor)
opening angle indication signal. 

A/C UNIT ASSEMBLY : Intake Sensor

INFOID:0000000006024029

COMPONENT DESCRIPTION

• Intake sensor (1) is located on the evaporator. 
• The intake sensor converts the evaporator surface temperature

detected with thermistor into the voltage, and the A/C auto amp.
inputs this voltage. 

INTAKE TEMPERATURE CORRECTION

• The A/C auto amp. inputs the temperature detected with the intake sensor as the evaporator surface tem-

perature. 

• Perform the correction of the temperature detected with the intake sensor for air conditioner control. 
• The A/C auto amp. performs the correction so that the recognition intake temperature changes depending

on the difference between the detected intake temperature and the recognition intake temperature. If the dif-
ference is large, the changing is early. The changing becomes slow as the difference becomes small. 

: Vehicle front

JMIIA0698ZZ

: Vehicle front

JMIIA0697ZZ

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