Condition NISSAN TEANA 2008 Service Manual

HAC-114
< BASIC INSPECTION >[WITH 7 INCH DISPLAY]
INSPECTION AND ADJUSTMENT
2. Ion indicator is shown on the display.
3. Press OFF switch.
4. Ion indicator is turned OFF.
Is the inspection result normal?
YES >> GO TO 11.
NO >> Refer to HAC-227, "
WITH INTELLIGENT AIR CONDITIONER SYSTEM : Inspection procedure".
11 .CHECK ION CONTROL MODE
1. Turn ignition switch OFF and restart the engine.
2. Turn fan control dial clockwise.
3. Ion indicator (blue) is turned ON.
4. Ion indicator (blue) changes to ion indicator (green) after approximately 15 minutes.
5. Ion indicator (green) changes to ion indicator (blue) after approximately 15 minutes.
6. Press CLEAN switch.
7. Ion indicator (blue) changes to ion indicator (green) after approximately 30 minutes.
8. Ion indicator (green) changes to ion indicator (blue) after approximately 15 minutes.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Replace unified meter and A/C amp.
WITH INTELLIGENT AIR CONDITIONER SYSTEM : Temperature Setting Trimmer
INFOID:0000000003888718
DESCRIPTION
If the temperature felt by the customer is different than the air flow temperature controlled by the temperature
setting, the A/C auto amp. control temperature can be adjusted to compensate for the temperature setting.
HOW TO SET
Using CONSULT-III, perform “TEMP SET CORRECT” on “WORK SUPPORT” of HVAC.
NOTE:
 When the temperature setting is set to 25.0°C (77°F) and −3.0°C (−6°F), the temperature controlled by A/C
auto amp. is 25.0°C (77°F) −3.0°C (6°F) = 22.0°C (71°F) and the temperature becomes lower than the tem-
perature setting.
 When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10
V or less, trimmer operation is canceled. Temperature set becomes that of initial condition.
WITH INTELLIGENT AIR CONDITIONER SYSTEM : Foot Position Setting Trimmer
INFOID:0000000003888719
DESCRIPTION
Work support items Display (°F) Display (°C)
TEMP SET CORRECT63.0
52.5
42.0
31.5
21.0
10.5
0 (initial status) 0 (initial status)
−1−0.5
−2−1.0
−3−1.5
−4−2.0
−5−2.5
−6−3.0

INSPECTION AND ADJUSTMENT
HAC-115
< BASIC INSPECTION >[WITH 7 INCH DISPLAY]
C
D
E
F
G
H
J
K
L
MA
B
HAC
N
O
P
In the FOOT mode, the air blowing to the DEF can be turned ON/OFF.
HOW TO SET
Using CONSULT-III, perform “BLOW SET” on “WORK SUPPORT” of HVAC.
NOTE:
When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10 V
or less, trimmer operation is cancelled. Wind distribution rate set becomes that of initial condition.
WITH INTELLIGENT AIR CONDITIONER SYSTEM : Inlet Port Memory Function
(FRE)
INFOID:0000000003888720
DESCRIPTION
 If the ignition switch is turned to the OFF position while the intake switch is set to OFF (fresh air intake), “Per-
form the memory” or “Do not perform the memory” of the intake switch OFF (fresh air intake) condition can
be selected.
 If “Perform the memory” was set, the intake switch will be OFF (fresh air intake) when turning the ignition
switch to the ON position again.
 If “Do not perform the memory” was set, the air inlets will be controlled automatically when turning the igni-
tion switch to the ON position again.
HOW TO SET
Using CONSULT-III, perform “FRE MEMORY SET” on “WORK SUPPORT” of HVAC.
NOTE:
When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10 V
or less, the setting of the intake switch memory function may be cancelled.
WITH INTELLIGENT AIR CONDITIONER SYSTEM : Inlet Port Memory Function
(REC)
INFOID:0000000003888721
DESCRIPTION
 If the ignition switch is turned to the OFF position while the intake switch is set to ON (recirculation), “Per-
form the memory” or “Do not perform the memory” of the intake switch ON (recirculation) condition can be
selected.
 If “Perform the memory” was set, the intake switch will be ON (recirculation) when turning the ignition switch
to the ON position again.
 If “Do not perform the memory” was set, the air inlets will be controlled automatically when turning the igni-
tion switch to the ON position again.
HOW TO SET
Using CONSULT-III, perform “REC MEMORY SET” on “WORK SUPPORT” of HVAC.
NOTE:
Work support items DisplayDEF door position
Auto control Manual control
BLOW SETMode 1 OPEN CLOSE
Mode 2 (initial status) OPEN OPEN
Mode 3 CLOSE OPEN
Mode 4 CLOSE CLOSE
Work support items Display Setting
FRE MEMORY SETWITHOUT (initial status) Perform the memory of manual FRE
WITH Do not perform the memory of manual FRE (auto control)
Work support items Display Setting
REC MEMORY SETWITHOUT Perform the memory of manual REC
WITH (initial status) Do not perform the memory of manual REC (auto control)

HAC-116
< BASIC INSPECTION >[WITH 7 INCH DISPLAY]
INSPECTION AND ADJUSTMENT
When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10 V
or less, the setting of the intake switch memory function may be cancelled.
WITH INTELLIGENT AIR CONDITIONER SYSTEM : Gas Sensor Sensitivity Adjust-
ment Function (With Intelligent Air Conditioner System)
INFOID:0000000003884691
DESCRIPTION
According to customer’s sense of smell, gas sensor sensitivity can be changed.
HOW TO SET
Using CONSULT-III, perform “GAS SENSOR ADJUSTMENT” on “WORK SUPPORT” of HVAC.
NOTE:
When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10 V
or less, the setting of the intake switch memory function may be cancelled.
WITH INTELLIGENT AIR CONDITIONER SYSTEM : Clean Switch Interlocking Move-
ment Change Function (With Intelligent Air Conditioner System)
INFOID:0000000003884692
DESCRIPTION
Condition for interlocking movement of clean switch and A/C switch can be changed. In addition operation of
the clean switch, which activates the automatic re-circulation control system, can be set to become available
when the A/C switch is ON.
HOW TO SET
Using CONSULT-III, perform “CLEAN SW SET” on “WORK SUPPORT” of HVAC.
NOTE:
When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10 V
or less, the setting of the intake switch memory function may be cancelled.
Work support items Display Setting
GAS SENSOR ADJUSTMENT2 Less sensitive setting than display 1 (REC later than display 1.)
1 Less sensitive setting than normal setting (REC later than normal operation.)
0 (initial status) Normal
−1 More sensitive setting than normal setting (REC earlier than normal operation.)
−2 More sensitive setting than display −1 (REC earlier than display −1.)
Work support items Display setting
CLEAN SW SETMODE 1 Initial setting
MODE 2 Setting 1
MODE 3 Setting 2
MODE 4 Setting 3
Initial settingWhen the clean switch is ON, the A/C switch is also turned ON in synchronization with the clean switch.
Control of the clean switch is functional even when the A/C switch is turned OFF.
Setting 1When the clean switch is ON, the A/C switch is not turned ON in synchronization with the clean switch.
Control of the clean switch is functional even when the A/C switch is turned OFF.
Setting 2When the clean switch is ON, the A/C switch is also turned ON in synchronization with the clean switch.
When the A/C switch is turned OFF, the clean switch is turned OFF in synchronization with the A/C switch.
Setting 3Clean switch can be turned ON only when A/C switch is ON.
When the A/C switch is turned OFF, the clean switch is turned OFF in synchronization with the A/C switch.

HAC-118
< FUNCTION DIAGNOSIS >[WITH 7 INCH DISPLAY]
COMPRESSOR CONTROL FUNCTION
Fail-Safe
INFOID:0000000003926398
FAIL-SAFE FUNCTION
If a communication error exists between the A/C auto amp., and the AV control unit and preset switch for 30
seconds or longer, air conditioner is controlled under the following conditions:
Component Part LocationINFOID:0000000003884694
ENGINE COMPARTMENT
Compressor : ON
Air outlet : AUTO
Air inlet : FRE (Fresh)
Blower fan speed : AUTO
Set temperature : Setting before communication error occurs

HAC-122
< FUNCTION DIAGNOSIS >[WITH 7 INCH DISPLAY]
AUTOMATIC AIR CONDITIONER SYSTEM
AUTOMATIC AIR CONDITIONER SYSTEM
WITHOUT INTELLIGENT AIR CONDITIONER SYSTEM
WITHOUT INTELLIGENT AIR CONDITIONER SYSTEM : System Diagram
INFOID:0000000003884702
CONTROL SYSTEM
The control system consists of input sensors, switches, the A/C auto amp. (microcomputer) and outputs. The
relationship of these components is as shown in the figure below:
WITHOUT INTELLIGENT AIR CONDITIONER SYSTEM : System Description
INFOID:0000000003884704
CONTROL OPERATION
Display
The operation status of the system is displayed on the screen.
JPIIA1020GB
JSIIA0058GB

AUTOMATIC AIR CONDITIONER SYSTEM
HAC-123
< FUNCTION DIAGNOSIS >[WITH 7 INCH DISPLAY]
C
D
E
F
G
H
J
K
L
MA
B
HAC
N
O
P A/C Control
MODE Switch
The air discharge outlets are controlled with this switch.
Temperature Control Dial (Driver Side)
The set temperature is increased or decreased with this dial.
Temperature Control Dial (Passenger Side)
 The set temperature is increased or decreased with this dial.
 When the temperature control dial is turned, DUAL switch indicator is turned ON.
AUTO Switch
 The compressor, intake door, air mix doors, mode 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 the AUTO switch, air inlet, air outlet, fan speed, and discharge air temperature are automati-
cally controlled.
Defroster (DEF) Switch
Mode doors are set to the defrost position with this switch. Also, intake door is set to the outside air position,
and compressor turns ON.
A/C Switch
Compressor turns ON or OFF with this switch.
(Pressing the A/C switch when the A/C switch is ON turns OFF the A/C switch and compressor.)
Fan Control Dial
The blower speed is manually controlled with this dial. Seven speeds are available for manual control (as
shown on the display screen).
OFF Switch
Compressor and blower turn OFF, air inlet sets to FRE, and mode the position is set to foot position.
Rear Window Defogger Switch
When indicator is ON, rear window is defogged.
Recirculation (REC) Switch
 When REC switch is ON, REC switch indicator turns ON, and air inlet is fixed to REC.
 When REC switch is pressed for approximately 1.5 seconds or longer, REC and FRE switch indicators blink
twice. Then, automatic control mode is entered. Inlet status is displayed even during automatic control.
JPIIA1006ZZ
1.Temperature control dial (passenger
side)2. MODE switch 3. Fresh (FRE) switch
4. Fan control dial 5. Recirculation (REC) switch 6. A/C switch
7. Temperature control dial (driver side) 8. AUTO switch 9. Defroster (DEF) switch
10. OFF switch 11. Rear window defogger switch 12. DUAL switch

HAC-124
< FUNCTION DIAGNOSIS >[WITH 7 INCH DISPLAY]
AUTOMATIC AIR CONDITIONER SYSTEM
 When FRE switch is turned ON, REC switch is automatically turned OFF (fixed to FRE mode). REC mode
can be re-entered by pressing REC switch again.
Fresh (FRE) Switch
 When FRE switch is ON, FRE switch indicator turns ON, and air inlet is fixed to FRE.
 When FRE switch is pressed for approximately 1.5 seconds or longer, REC and FRE switch indicators blink
twice. Then, automatic control mode is entered. Inlet status is displayed even during automatic control.
 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.
DUAL Switch
 When the DUAL switch indicator is ON, the driver side and passenger side, temperature can each be set
independently.
 When the DUAL switch indicator is OFF, the driver side setting temperature is applied to both sides.

AUTOMATIC AIR CONDITIONER SYSTEM
HAC-125
< FUNCTION DIAGNOSIS >[WITH 7 INCH DISPLAY]
C
D
E
F
G
H
J
K
L
MA
B
HAC
N
O
P
DISCHARGE AIR FLOW
JPIIA0884GB

HAC-126
< FUNCTION DIAGNOSIS >[WITH 7 INCH DISPLAY]
AUTOMATIC AIR CONDITIONER SYSTEM
AIR DISTRIBUTION
SWITCHES AND THEIR CONTROL FUNCTION
JPIIA0877GB
JPIIA0885GB

AUTOMATIC AIR CONDITIONER SYSTEM
HAC-127
< FUNCTION DIAGNOSIS >[WITH 7 INCH DISPLAY]
C
D
E
F
G
H
J
K
L
MA
B
HAC
N
O
P
AIR CONDITIONER LAN CONTROL SYSTEM
The LAN (Local Area Network) system consists of the A/C auto amp., the mode door motor, the air mix door
motors and the intake door motor.
A configuration of these components is as shown in the figure below.
SYSTEM CONSTRUCTION
A small network exists between the A/C auto amp., the mode door motor, the air mix door motor and the intake
door motor. The A/C auto amp. and motors are connected by data transmission lines and motor power supply
lines. The LAN network is built through the ground circuits of each door motor.
Addresses, motor opening angle signals, motor stop signals and error checking messages are all transmitted
through the data transmission lines connecting the A/C auto amp. and each door motor.
The following functions are contained in LCUs built into the mode door motor, the air mix door motors and the
intake door motor.
 Address
 Motor opening angle signals
 Data transmission
 Motor stop and drive decision
 Opening angle sensor (PBR function)
 Comparison
JSIIA1189GB
JSIIA1129GB