Infiniti G37 Coupe. Manual - part 762

 

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Infiniti G37 Coupe. Manual - part 762

 

 

AUTOMATIC AIR CONDITIONER SYSTEM

HAC-37

< FUNCTION DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

START:

• Initial compulsory signal is sent to each of the door motors.

ADDRESS:

• Data sent from the unified meter and A/C amp. are selected according to data-based decisions made by the

mode door motor, air mix door motors and intake door motor.

• If the addresses are identical, the opening angle data and error check signals are received by the door motor

LCUs. The LCUs then make the appropriate error decision. If the opening angle data have no error, door
control begins.

• If an error exists, the received data are rejected and corrected data received. Finally, door control is based

upon the corrected opening angle data.

OPENING ANGLE:

• Data that shows the indicated door opening angle of each door motor.

ERROR CHECK:

• In this procedure, transmitted and received data is checked for errors. Error data are then compiled. The

error check prevents corrupted data from being used by the mode door motor, the air mix door motors and
the intake door motor. Error data can be related to the following symptoms.

- Malfunction of electrical frequency
- Poor electrical connections
- Signal leakage from transmission lines
- Signal level fluctuation

STOP SIGNAL:

• At the end of each transmission, a stop operation, in-operation, or internal malfunction message is delivered

to the unified meter and A/C amp. This completes one data transmission and control cycle.

WITH LEFT AND RIGHT VENTILATION TEMPERATURE SEPARATELY CONTROL 
SYSTEM : Component Part Location

INFOID:0000000001713978

ENGINE COMPARTMENT

RJIA1749E

HAC-38

< FUNCTION DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

AUTOMATIC AIR CONDITIONER SYSTEM

PASSENGER COMPARTMENT

1.

Refrigerant pressure sensor

2.

Ambient sensor

3.

Compressor (magnet clutch)

4.

Compressor (ECV)

JSIIA0746ZZ

AUTOMATIC AIR CONDITIONER SYSTEM

HAC-39

< FUNCTION DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

WITH LEFT AND RIGHT VENTILATION TEMPERATURE SEPARATELY CONTROL 

1.

Intake door motor

2.

Mode door motor

3.

Air mix door motor (passenger side)

4.

Air mix door motor (driver side)

5.

Sunload sensor

6.

In-vehicle sensor

7.

Unified meter and A/C amp.

8.

Intake sensor

9.

Blower motor

JSIIA0082ZZ

HAC-40

< FUNCTION DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

AUTOMATIC AIR CONDITIONER SYSTEM

SYSTEM : Component Description

INFOID:0000000001675680

Component

Reference

Air mix door motor

HAC-71, "WITH LEFT AND RIGHT VENTILATION TEMPERA-
TURE SEPARATELY CONTROL SYSTEM : Description"

Ambient sensor

HAC-88, "Description"

Blower motor

HAC-80, "WITH LEFT AND RIGHT VENTILATION TEMPERA-
TURE SEPARATELY CONTROL SYSTEM : Description"

Compressor

HAC-85, "Description"

intake door motor

HAC-75, "Description"

intake sensor

HAC-97, "Description"

In-vehicle sensor

HAC-91, "Description"

Mode door motor

HAC-67, "Description"

Refrigerant pressure sensor

EC-511, "Description"

Sunload sensor

HAC-94, "Description"

Unified meter and A/C amp. 

HAC-100, "Description"

 

 

 

 

 

 

 

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