Nissan Tiida C11. Manual — part 857
HAC-92
< FUNCTION DIAGNOSIS >
[AUTO AIR CONDITIONER (W/O NAVI)]
AUTOMATIC AIR CONDITIONER SYSTEM
AUTOMATIC AIR CONDITIONER SYSTEM
Control System Diagram
INFOID:0000000001547392
CONTROL SYSTEM
The control system consists of input sensors, switches, the front air control (microcomputer) and outputs.
The relationship of these components is shown in the figure below:
Control System Description
INFOID:0000000001547393
CONTROL OPERATION
AWIIA0480ZZ
AWIIA0279GB
AUTOMATIC AIR CONDITIONER SYSTEM
HAC-93
< FUNCTION DIAGNOSIS >
[AUTO AIR CONDITIONER (W/O NAVI)]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
DISPLAY
Displays the operational status of the system.
AUTO SWITCH
• The compressor, intake doors, air mix doors, outlet doors and blower speed are automatically controlled so
that the in-vehicle temperature will reach, and be maintained at the set temperature selected by the operator.
• When pressing AUTO switch, air inlet, air outlet, fan speed, and discharge air temperature are automatically
controlled. (Inlet is automatically controlled only when FRE or REC switch is OFF.)
TEMPERATURE CONTROL SWITCH (POTENTIO TEMPERATURE CONTROL)
Increases or decreases the set temperature.
RECIRCULATION (REC) SWITCH
• When REC switch is ON, REC switch indicator turns ON, air inlet is fixed to REC, and compressor will turn
ON.
• When FRE switch is turned ON, air outlet switches to D/F or DEF position, or when compressor is turned
from ON to OFF, REC switch is automatically turned OFF (fixed to FRE mode).
FRESH (FRE) SWITCH
• When FRE switch is ON, FRE switch indicator turns ON, and air inlet is fixed to FRE.
• When REC switch is turned ON, FRE switch is automatically turned OFF (fixed to REC mode). FRE mode
can be re-entered by pressing FRE switch again.
DEFROSTER (DEF) SWITCH
Positions the air outlet doors to the defrost position. Also positions the intake doors to the outside air position,
and compressor will turn ON.
REAR WINDOW DEFOGGER SWITCH
When illumination is ON, rear window is defogged.
OFF SWITCH
The compressor and blower are OFF, the intake doors are set to the outside air position, and the air outlet
doors are set to the foot position.
A/C SWITCH
The compressor is ON or OFF.
(Pressing the A/C switch when the A/C switch is ON will turn off the A/C switch and compressor.)
MODE SWITCH
Controls the air discharge outlets.
When air outlet switches to D/F position, compressor will turn ON and fixed to REC mode.
BLOWER MOTOR SWITCH
Manually control the blower speed. Four speeds are available for manual control (as shown on the display).
1.
Blower motor switch
2.
Defroster (DEF) switch
3.
Rear window defogger switch
4.
Display
5.
A/C switch
6.
OFF switch
7.
Temperature control switch
8.
AUTO switch
9.
Recirculation (REC) switch
10.
Fresh (FRE) switch
11.
MODE switch
HAC-94
< FUNCTION DIAGNOSIS >
[AUTO AIR CONDITIONER (W/O NAVI)]
AUTOMATIC AIR CONDITIONER SYSTEM
MAGNET CLUTCH CONTROL
When A/C switch, AUTO switch or DEF switch is pressed, front air control inputs compressor ON signal to
BCM.
BCM sends compressor ON signal to ECM, via CAN communication line.
ECM judges whether compressor can be turned ON, based on each sensor status (refrigerant-pressure sen-
sor signal, throttle angle, etc.). If it judges compressor can be turned ON, it sends compressor ON signal to
IPDM E/R, via CAN communication line.
Upon receipt of compressor ON signal from ECM, IPDM E/R turns air conditioner relay ON to operate com-
pressor.
Discharge Air Flow
INFOID:0000000001547394
AWIIA0277GB
Mode door position
Air outlet/distribution
Vent
Foot
Defroster
100%
—
—
56%
44%
—
16%
64%
20%
16%
53%
31%
17%
—
83%
Airflow always present at driver and passenger side demisters
WJIA2190E
AUTOMATIC AIR CONDITIONER SYSTEM
HAC-95
< FUNCTION DIAGNOSIS >
[AUTO AIR CONDITIONER (W/O NAVI)]
C
D
E
F
G
H
J
K
L
M
A
B
HAC
N
O
P
Switches And Their Control Function
INFOID:0000000001547396
SJIA0700E
AWIIA0280GB
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст