Infiniti G37 Coupe. Manual — part 757
COMPRESSOR CONTROL FUNCTION
HAC-17
< FUNCTION DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
WITHOUT LEFT AND RIGHT VENTILATION TEMPERATURE SEPARATELY CON-
1.
Intake door motor
2.
Mode door motor
3.
Air mix door motor
4.
Sunload sensor
5.
In-vehicle sensor
6.
Unified meter and A/C amp.
7.
Intake sensor
8.
Blower motor
JSIIA0122ZZ
HAC-18
< FUNCTION DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
COMPRESSOR CONTROL FUNCTION
TROL SYSTEM : Component’s role
INFOID:0000000001675668
WITH LEFT AND RIGHT VENTILATION TEMPERATURE SEPARATELY CON-
TROL SYSTEM
WITH LEFT AND RIGHT VENTILATION TEMPERATURE SEPARATELY CONTROL
SYSTEM : Description
INFOID:0000000001713972
PRINCIPLE OF OPERATION
Compressor is not activated.
Functional circuit diagram
Component
Reference
Air mix door motor
HAC-70, "WITHOUT LEFT AND RIGHT VENTILATION TEMPER-
ATURE SEPARATELY CONTROL SYSTEM : Description"
Ambient sensor
Blower motor
HAC-77, "WITHOUT LEFT AND RIGHT VENTILATION TEMPER-
ATURE SEPARATELY CONTROL SYSTEM : Description"
Compressor
intake door motor
intake sensor
In-vehicle sensor
Mode door motor
Refrigerant pressure sensor
Sunload sensor
Unified meter and A/C amp.
CAN(1) : A/C signal
CAN(2) : Compressor request signal
JSIIA0765GB
COMPRESSOR CONTROL FUNCTION
HAC-19
< FUNCTION DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
Functional initial inspection chart
WITH LEFT AND RIGHT VENTILATION TEMPERATURE SEPARATELY CONTROL
SYSTEM : Fail-Safe
INFOID:0000000001713973
FAIL-SAFE FUNCTION
• If a communication error exists between the unified meter and A/C amp., and the AV control unit and preset
switch for 30 seconds or longer, air conditioner is controlled under the following conditions:
WITH LEFT AND RIGHT VENTILATION TEMPERATURE SEPARATELY CONTROL
SYSTEM : Component Part Location
INFOID:0000000001689947
ENGINE COMPARTMENT
Location
A
B
C
D
CONSULT-III
ECM DATA MONITOR
Yes
Yes
IPDM E/R DATA MONITOR
Yes
AUTO ACTIVE TEST
Yes
Self-diagnosis function (except CAN diagnosis)
Yes
Compressor
: ON
Air outlet
: AUTO
Air inlet
: FRE (Fresh)
Blower fan speed
: AUTO
Set temperature
: Setting before communication error occurs
Display
: OFF
HAC-20
< FUNCTION DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
COMPRESSOR CONTROL FUNCTION
PASSENGER COMPARTMENT
1.
Refrigerant pressure sensor
2.
Ambient sensor
3.
Compressor (magnet clutch)
4.
Compressor (ECV)
JSIIA0746ZZ
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