Infiniti FX35, FX50 (S51). Manual — part 1158
AUTOMATIC AIR CONDITIONER SYSTEM
HAC-29
< SYSTEM DESCRIPTION >
[AUTOMATIC AIR CONDITIONER]
C
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HAC
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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.
WITHOUT ACCS : Component Part Location
INFOID:0000000005246220
ENGINE COMPARTMENT
RJIA1749E
HAC-30
< SYSTEM DESCRIPTION >
[AUTOMATIC AIR CONDITIONER]
AUTOMATIC AIR CONDITIONER SYSTEM
PASSENGER COMPARTMENT
1.
Refrigerant pressure sensor
2.
Ambient sensor
3.
Compressor (magnet clutch)
4.
Compressor (ECV)
JSIIA1284ZZ
AUTOMATIC AIR CONDITIONER SYSTEM
HAC-31
< SYSTEM DESCRIPTION >
[AUTOMATIC AIR CONDITIONER]
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HAC
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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
HAC-32
< SYSTEM DESCRIPTION >
[AUTOMATIC AIR CONDITIONER]
AUTOMATIC AIR CONDITIONER SYSTEM
WITHOUT ACCS : Component Description
INFOID:0000000005246221
WITH ACCS
WITH ACCS : System Diagram
INFOID:0000000005246222
CONTROL SYSTEM
• The adoption of the advanced climate control system (ACCS) enables the maintenance of clean air in the
vehicle by combining the plasmacluster
™
ion generation function, the automatic recirculation control func-
tion, and a high performance filter.
NOTE:
• Plasmacluster
™
ion technology developed by Sharp Corporation is installed in this item.
• Plasmacluster
™
is a trademark of Sharp Corporation.
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.
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