Nissan Altima L32. Manual - part 833

HAC-106

< FUNCTION DIAGNOSIS >

[MANUAL AIR CONDITIONER]

FUNCTION INFORMATION

Component’s Role

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1.

Intake door motor M126

2.

Front blower motor relay J-4

3.

Air mix door motor M130

4.

 Mode door motor M127

5.

Blower motor M31

AWIIA1235ZZ

Component

Reference

Air mix door motor

HAC-122, "Diagnosis Procedure"

Blower motor

HAC-127, "Diagnosis Procedure"

A/C Compressor

HAC-131, "Diagnosis Procedure"

Intake door motor

HAC-124, "Diagnosis Procedure"

Mode door motor

HAC-119, "Diagnosis Procedure"

Refrigerant pressure sensor

EC-975, "Diagnosis Procedure"

 (QR25DE) or 

EC-1503, "Diagno-

sis Procedure"

 (VQ35DE)

AIR CONDITIONER CONTROL

HAC-107

< FUNCTION DIAGNOSIS >

[MANUAL AIR CONDITIONER]

C

D

E

F

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AIR CONDITIONER CONTROL

System Diagram

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CONTROL SYSTEM

The control system consists of input sensors, switches, front air control and outputs. The relationship of these

components is shown in the figure below:

System Description

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CONTROL OPERATION

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HAC-108

< FUNCTION DIAGNOSIS >

[MANUAL AIR CONDITIONER]

AIR CONDITIONER CONTROL

Mode Switches

The air discharge outlets are controlled through the mode door.

Temperature Control Dial (Potentio Temperature Control) (LH) 

The set temperature is increased or decreased with this dial.

DEFROSTER (

) Switch

Mode doors are set to the defrost position with this switch. Also, intake doors are set to the outside air position,

and compressor turns ON.

A/C Switch 

Compressor is ON or OFF with this switch.

(Pressing the A/C switch when the A/C switch is ON will turn OFF the A/C switch and compressor.)

Blower control dial/OFF switch

• The blower speed is manually controlled with this dial. 

• Compressor and blower are OFF, intake doors and the mode doors are automatically controlled.

Rear Window Defogger Switch

This switch turns the rear window defogger ON and OFF.

Recirculation (

) Switch

• When REC (

) switch is ON (REC LED ON), air inlet is fixed to REC.

• When press intake switch again (REC LED OFF), air inlet is fixed to fresh air.

• When REC LED is turned ON, shifting mode position to D/F or DEF, or when compressor is turned from ON

to OFF, the REC (

) switch is automatically turned OFF. 

DISCHARGE AIR FLOW

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1.

Blower control dial

2:

Air recirculation switch

3:  Defroster switch

4.

MAX A/C ON/OFF switch 

5:

Rear defrost switch

6:   A/C ON/OFF switch 

7.

Temperature control dial

8:

Mode switches

AIR CONDITIONER CONTROL

HAC-109

< FUNCTION DIAGNOSIS >

[MANUAL AIR CONDITIONER]

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D

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F

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A

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HAC

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SWITCHES AND THEIR CONTROL FUNCTION

Mode door position

Air outlet/distribution

Vent

Foot

Defroster

100%

—

—

44%

56%

—

17%

59%

24%

16%

52%

32%

12%

—

88%

AWIIA0040ZZ

RHA044GA