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
Blower motor
HAC-80, "WITH LEFT AND RIGHT VENTILATION TEMPERA-
TURE 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.
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