Infiniti G35 (V35) Sedan. Manual - part 772
HAC-60
< FUNCTION DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
AIR MIX DOOR CONTROL SYSTEM
LAN System Circuit
Air Mix Door Control Specification
When ignition switch is ON, unified meter and A/C amp. continuously
and automatically controls temperatures regardless of air conditioner
operational condition. When setting a target temperature with tem-
perature control dial, unified meter and A/C amp. corrects the set
temperature and decides a target air mix door opening angle. Unified
meter and A/C amp. controls air mix door according to the target air
mix door opening angle and current air mix door opening angle in
order to keep an optimum air mix door opening angle. When a tem-
perature is set at 18.0
°
C (60
°
F), air mix door is fixed at full cold, and
when a temperature is set at 32.0
°
C (90
°
F), it is set at full hot.
WITH LEFT AND RIGHT VENTILATION TEMPERATURE SEPARATELY CON-
TROL SYSTEM
WITH LEFT AND RIGHT VENTILATION TEMPERATURE SEPARATELY CONTROL
SYSTEM : Description
INFOID:0000000000959923
SYSTEM DESCRIPTION
Component Parts
Air mix door control system components are:
• Unified meter and A/C amp.
• Air mix door motor (LCU)
• A/C LAN system (PBR built-in mode door motor, air mix door motor and intake door motor)
• In-vehicle sensor
• Ambient sensor
• Sunload sensor
• Intake sensor
System Operation
The unified meter and A/C amp. receives data from each of the sensors. The unified meter and A/C amp.
sends air mix doors, mode door and intake door opening angle data to the air mix door motor LCUs, mode
door motor LCU and intake door motor LCU.
The air mix door motors, mode door motor and intake door motor read their respective signals according to the
address signal. Opening angle indication signals received from the unified meter and A/C amp. and each of
the motor position sensors are compared by the LCUs in each door motor with the existing decision and open-
JSIIA0120GB
RJIA1782E