NISSAN TEANA 2008 Service Manual

PLASMACLUSTER SYSTEM
HAC-143
< FUNCTION DIAGNOSIS >[WITH 7 INCH DISPLAY]
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1. Clean mode operation
Ion indicator (blue) (1) in the display is turns ON as per the fol-
lowings.
 Approximately 15 minutes after starting the blower motor.
 Approximately 30 minutes after the clean switch is turned ON
while the blower motor is operating.
 Clean mode is switched to operate, 15 minutes after ion con-
trol mode in operation.
2. Ion control mode operation
Ion indicator (green) in the display is turns ON as per the follow-
ings.
 Ion control mode is switched to operate, 15 minutes after
clean mode in operation.
 After approximately 30 seconds of clean mode operation time has passed while the clean switch is ON.
WITH INTELLIGENT AIR CONDITIONER SYSTEM : Component Part Location
INFOID:0000000003884710
PASSENGER COMPARTMENT
Clean mode Emits positive and negative ions into air for deactivating impurities actively.
Ion control mode Emits more negative ions after deactivating impurities actively in clean mode.
JSIIA1152ZZ
JPIIA0998ZZ

HAC-144
< FUNCTION DIAGNOSIS >[WITH 7 INCH DISPLAY]
PLASMACLUSTER SYSTEM
WITH INTELLIGENT AIR CONDITIONER SYSTEM : Component Description
INFOID:0000000003884711
1. Ion indicator 2. A/C auto amp. 3. Ionizer
Component Description
A/C auto amp. The A/C auto amp. controls ionizer ON/OFF and shifts an ion gen-
eration function.
Ion indicatorPlasmacluster ion generation function operating condition is dis-
played in the ion indicator in the display.
IonizerHAC-199, "
WITH INTELLIGENT AIR CONDITIONER SYSTEM :
Description"

MODE DOOR CONTROL SYSTEM
HAC-145
< FUNCTION DIAGNOSIS >[WITH 7 INCH DISPLAY]
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MODE DOOR CONTROL SYSTEM
System DiagramINFOID:0000000003884714
System DescriptionINFOID:0000000003884715
The mode door is automatically controlled by the temperature setting, ambient temperature, in-vehicle temper-
ature, intake temperature and amount of sunload.
SYSTEM OPERATION
 The A/C auto amp. receives data from each of the sensors.
 The A/C auto amp. sends the air mix door, the mode door and the intake door opening angle data to the air
mix door motor LCUs, the mode door motor LCU and the intake door motor LCU.
 The air mix door motors, the mode door motor and the intake door motor read their respective signals
according to the address signal. Opening angle indication signals received from the A/C auto amp. and each
of the motor position sensors are compared by the LCUs in each door motor with the existing decision and
opening angles.
 Next, HOT/COLD, DEF/VENT, OPEN/SHUT or FRE/REC operations is selected. The newly selected data is
returned to the A/C auto amp.
Door Motor Circuit
Mode Door Control Specification
JPIIA0494GB
JSIIA1133GB

HAC-146
< FUNCTION DIAGNOSIS >[WITH 7 INCH DISPLAY]
MODE DOOR CONTROL SYSTEM
Mode position can be selected manually by pressing the MODE
switch or the DEF switch on the A/C control. This the setting of a
mode position. Pressing the AUTO switch allows automatic control
by the A/C auto amp. During the automatic control of a mode posi-
tion, a mode door position (VENT, B/L, FOOT, or D/F) is selected
based on a target the air mix door opening angle and sunload
depending on the temperature calculated by the A/C auto amp. In
addition, the D/F is selected to prevent windshield fogging only when
ambient temperature is extremely low with mode position the FOOT.
JPIIA0767GB

AIR MIX DOOR CONTROL SYSTEM
HAC-147
< FUNCTION DIAGNOSIS >[WITH 7 INCH DISPLAY]
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AIR MIX DOOR CONTROL SYSTEM
System DiagramINFOID:0000000003884718
System DescriptionINFOID:0000000003884719
The air mix doors are automatically controlled so that in-vehicle temperature is maintained at a predetermined
value by the temperature setting, ambient temperature, intake temperature and amount of sunload.
SYSTEM OPERATION
 The A/C auto amp. receives data from each of the sensors.
 The A/C auto amp. sends air mix door, the mode door and the intake door opening angle data to the air mix
door motor LCUs, the mode door motor LCU and the intake door motor LCU.
 The air mix door motors, the mode door motor and the intake door motor read their respective signals
according to the address signal. Opening angle indication signals received from the A/C auto amp. and each
of the motor position sensors are compared by the LCUs in each door motor with the existing decision and
opening angles.
 Next, HOT/COLD, DEF/VENT, OPEN/SHUT or FRE/REC operation is selected. The newly selected data is
returned to the A/C auto amp.
Door Motor Circuit
Air Mix Door Control Specification
JPIIA0499GB
JSIIA1133GB

HAC-148
< FUNCTION DIAGNOSIS >[WITH 7 INCH DISPLAY]
AIR MIX DOOR CONTROL SYSTEM
When ignition switch is ON, the A/C auto amp. continuously and
automatically controls temperatures regardless of air conditioner
operational condition. When setting a target temperature with the
temperature control dial, the A/C auto amp. corrects the set temper-
ature and decides a target air mix door opening angle. The A/C auto
amp. controls air mix door according to the target air mix door open-
ing angle and current air mix door opening angle, keeping an opti-
mum air mix door opening angle. When the temperature is set at
18°C (60°F), air mix door is set on full cold, and when the tempera-
ture is set at 32°C (90°F), it is set to full hot.
JPIIA0633GB

INTAKE DOOR CONTROL SYSTEM
HAC-149
< FUNCTION DIAGNOSIS >[WITH 7 INCH DISPLAY]
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INTAKE DOOR CONTROL SYSTEM
WITHOUT INTELLIGENT AIR CONDITIONER SYSTEM
WITHOUT INTELLIGENT AIR CONDITIONER SYSTEM : System Diagram
INFOID:0000000003884722
WITHOUT INTELLIGENT AIR CONDITIONER SYSTEM : System Description
INFOID:0000000003884724
The intake door is automatically controlled by the temperature setting, ambient temperature, in-vehicle tem-
perature, intake temperature, amount of sunload and ON/OFF operation of the compressor.
SYSTEM OPERATION
The intake door control judges intake door position based on the ambient temperature, the intake air tempera-
ture and the in-vehicle temperature. When the DEF or OFF switches are pressed, the A/C auto amp. sets the
intake door to the FRE position.
Door Motor Circuit
Intake Door Control Specification
JPIIA1023GB
JSIIA1133GB

HAC-150
< FUNCTION DIAGNOSIS >[WITH 7 INCH DISPLAY]
INTAKE DOOR CONTROL SYSTEM
 Intake door position is basically set to the FRE when the FRE indi-
cator is ON or DEF switch is ON.
 Intake door position is basically set to the REC when the REC indi-
cator is ON.
 The intake door automatic control selects the FRE, the 20% FRE,
or the REC depending on the target air mix door opening angle,
based on in-vehicle temperature, ambient temperature, and sun-
load.
WITH INTELLIGENT AIR CONDITIONER SYSTEM
WITH INTELLIGENT AIR CONDITIONER SYSTEM : System DiagramINFOID:0000000003884723
WITH INTELLIGENT AIR CONDITIONER SYSTEM : System DescriptionINFOID:0000000003884725
The intake door is automatically controlled by the ambient atmospheric CO and NO2, temperature setting,
ambient temperature, in-vehicle temperature, intake temperature, amount of sunload and ON/OFF operation
of the compressor.
SYSTEM OPERATION
The intake door control judges intake door position based on the ambient atmospheric CO and NO2, ambient
temperature, the intake air temperature and the in-vehicle temperature. When DEF or OFF switches are
pressed, the A/C auto amp. sets the intake door at the FRE position.
JPIIA0634GB
JPIIA1024GB

INTAKE DOOR CONTROL SYSTEM
HAC-151
< FUNCTION DIAGNOSIS >[WITH 7 INCH DISPLAY]
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P Door Motor Circuit
Intake Door Control Specification
 Intake door position is basically set to the FRE when the intake
indicator is OFF or DEF switch is ON.
 Intake door position is basically set to the REC when the intake
indicator is ON.
 The intake door automatic control selects the FRE, the 20% FRE,
or the REC depending on the target air mix door opening angle,
based on in-vehicle temperature, ambient temperature, and sun-
load.
Automatic Re-circulation Control System
In addition to the regular automatic control, intake door condition is
controlled by gas sensor output signal when auto recirculation mode
is selected. This system automatically controls the inlet to prevent a
smell of exhaust gas from getting into vehicle by receiving signals
from the gas sensor that detects ambient atmospheric CO and NO
2.
JSIIA1133GB
JPIIA0634GB
ZJIA1166E

HAC-152
< FUNCTION DIAGNOSIS >[WITH 7 INCH DISPLAY]
BLOWER MOTOR CONTROL SYSTEM
BLOWER MOTOR CONTROL SYSTEM
System DiagramINFOID:0000000003884727
System DescriptionINFOID:0000000003884728
Blower speed is automatically controlled by the temperature setting, ambient temperature, in-vehicle tempera-
ture, intake temperature, amount of sunload and air mix door position.
By pressing the AUTO switch, the blower motor starts to gradually increase air flow volume.
When engine coolant temperature is low, the blower motor operation is delayed to prevent cool air from flow-
ing.
SYSTEM OPERATION
System Operation
 For air flow, the manual selection (1-7) with the fan control dial has priority.
 If the AUTO switch is pressed or if the DEF switch is pressed while in the OFF condition, it changes to the
automatic control by A/C auto amp.
 When increasing the air flow, it changes the duty ratio of the blower motor drive signal to prevent the air flow
from suddenly increasing.
 There are the following types of air flow control: starting air flow control, starting air flow control at low cool-
ant temperature, starting air flow control at high in-vehicle temperature, and air flow control at actuator oper-
ation in addition to manual control, normal automatic air flow control.
Normal Automatic Air Flow Control
 When the target temperature is set by the temperature control dial of A/C control, the A/C auto amp. per-
forms the calculation and decides the target according to the signal from each sensor.
 The A/C auto amp. changes the duty ratio of blower motor drive signal and controls the air flow continuously
so that the air flow becomes the target air flow.
 The minimum air flow will change according to the sunload when the air discharge outlet is VENT or B/L.
Fan Speed Control Specification
JPIIA0502GB
JPIIA0635GB