Infiniti EX35. Manual — part 906
HAC-20
< FUNCTION DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
COMPRESSOR CONTROL FUNCTION
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
JSIIA1066ZZ
COMPRESSOR CONTROL FUNCTION
HAC-21
< FUNCTION DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
TROL SYSTEM : Component’s role
INFOID:0000000003545571
WITH LEFT AND RIGHT VENTILATION TEMPERATURE SEPARATELY CON-
TROL SYSTEM
WITH LEFT AND RIGHT VENTILATION TEMPERATURE SEPARATELY CONTROL
SYSTEM : Description
INFOID:0000000003545572
PRINCIPLE OF OPERATION
Compressor is not activated.
Functional circuit diagram
Component
Reference
Air mix door motor
HAC-73, "WITHOUT LEFT AND RIGHT VENTILATION TEMPER-
ATURE SEPARATELY CONTROL SYSTEM : Description"
Ambient sensor
Blower motor
HAC-80, "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.
JSIIA0765GB
HAC-22
< FUNCTION DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
COMPRESSOR CONTROL FUNCTION
Functional initial inspection chart
WITH LEFT AND RIGHT VENTILATION TEMPERATURE SEPARATELY CONTROL
SYSTEM : Fail-Safe
INFOID:0000000003545573
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:0000000003545574
ENGINE COMPARTMENT
CAN(1) : A/C switch signal
: Blower fan motor switch signal
CAN(2) : A/C compressor request signal
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
COMPRESSOR CONTROL FUNCTION
HAC-23
< FUNCTION DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
PASSENGER COMPARTMENT
1.
Refrigerant pressure sensor
2.
Ambient sensor
3.
Compressor (magnet clutch)
4.
Compressor (ECV)
JPIIA0715ZZ
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