Infiniti FX35, FX50 (S51). Manual — part 1155
COMPRESSOR CONTROL FUNCTION
HAC-17
< SYSTEM DESCRIPTION >
[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)
JSIIA1284ZZ
HAC-18
< SYSTEM DESCRIPTION >
[AUTOMATIC AIR CONDITIONER]
COMPRESSOR CONTROL FUNCTION
1.
Intake door motor
2.
Air mix door motor (passenger side)
3.
Mode door motor
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
JSIIA1285ZZ
COMPRESSOR CONTROL FUNCTION
HAC-19
< SYSTEM DESCRIPTION >
[AUTOMATIC AIR CONDITIONER]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
WITHOUT ACCS : Component’s role
INFOID:0000000005246213
WITH ACCS
WITH ACCS : Description
INFOID:0000000005246214
PRINCIPLE OF OPERATION
Compressor is not activated.
Functional circuit diagram
Functional initial inspection chart
Component
Reference
Air mix door motor (driver side)
Air mix door motor (passenger side)
Ambient sensor
Blower motor
Compressor (magnet clutch)
Compressor (ECV)
Intake door motor
HAC-76, "WITHOUT ACCS : Description"
Intake sensor
In-vehicle sensor
Mode door motor
Refrigerant pressure sensor
Sunload sensor
Unified meter and A/C amp.
CAN(1) : A/C switch signal
: Blower fan motor switch signal
CAN(2) : A/C compressor request signal
JSIIA0918GB
HAC-20
< SYSTEM DESCRIPTION >
[AUTOMATIC AIR CONDITIONER]
COMPRESSOR CONTROL FUNCTION
WITH ACCS : Fail-safe
INFOID:0000000005246215
FAIL-SAFE FUNCTION
• If a communication error exists between the unified meter and A/C amp., and preset switch for 30 seconds
or longer, air conditioner is controlled under the following conditions:
WITH ACCS : Component Part Location
INFOID:0000000005246216
ENGINE COMPARTMENT
Control unit
Diagnosis Item
Location
A
B
C
D
Unified meter and A/C amp.
Self-diagnosis function
×
–
–
–
ECM
“ENGINE”
Self-diagnosis
(CAN system diagnosis)
–
–
×
–
Data monitor
×
×
×
–
IPDM E/R
“IPDM E/R”
Self-diagnosis
(CAN system diagnosis)
–
–
–
×
Data monitor
–
–
×
–
Auto active test
–
–
–
×
Compressor
: ON
Air outlet
: AUTO
Air inlet
: FRE (Fresh)
Blower fan speed
: AUTO
Set temperature
: Setting before communication error occurs
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