2008 NISSAN TEANA maintenance

VTL-1
VENTILATION, HEATER & AIR CONDITIONER
C
DE
F
G H
J
K L
M
SECTION VTL
A
B
VTL
N
O P
CONTENTS
VENTILATION SYSTEM
WITHOUT 7 INCH DISPLAY
FUNCTION DIAGNOSIS .. .............................
5
SWITCHES AND THEIR CONTROL FUNC-
TION ............................................................... .....
5
System Description ............................................. ......5
AIR DISTRIBUTION ............................................6
System Description ............................................. ......6
PRECAUTION ...............................................7
PRECAUTIONS .............................................. .....7
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
7
Precaution Necessary for Steering Wheel Rota-
tion after Battery Disconnect .....................................
7
Precaution for Procedure without Cowl Top Cover ......8
Precautions For Xenon Headlamp Service ...............8
Working with HFC-134a (R-134a) .............................8
General Refrigerant Precaution ................................8
Refrigerant Connection .............................................9
Service Equipment ..................................................11
COMPRESSOR .............................................. ....14
General Precautions ........................................... ....14
FLUORESCENT LEAK DETECTOR .................15
General Precautions ........................................... ....15
PREPARATION ...........................................16
PREPARATION .............................................. ....16
Special Service Tool ........................................... ....16
Commercial Service Tool ........................................18
Sealant or/and Lubricant .........................................18
ON-VEHICLE MAINTENANCE ....................20
AIR CONDITIONER FILTER .......................... ....20
Exploded View .................................................... ....20
Removal and Installation ..................................... ....20
Replacement ...........................................................20
ON-VEHICLE REPAIR .................................21
A/C CONTROL ..................................................21
Exploded View ..................................................... ....21
Removal and Installation .........................................21
A/C DISPLAY ....................................................22
Exploded View .........................................................22
Removal and Installation .........................................22
A/C AUTO AMP. ...............................................23
Exploded View .........................................................23
Removal and Installation .........................................23
AMBIENT SENSOR ..........................................24
Exploded View .........................................................24
Removal and Installation .........................................24
IN-VEHICLE SENSOR ......................................25
Exploded View .........................................................25
Removal and Installation .........................................25
SUNLOAD SENSOR .........................................26
Exploded View .........................................................26
Removal and Installation .........................................26
INTAKE SENSOR .............................................27
Exploded View .........................................................27
Removal and Installation .........................................28
BLOWER UNIT .................................................29
Exploded View .........................................................29
Removal and Installation .........................................30
BLOWER MOTOR ............................................32
Exploded View .........................................................32
Removal and Installation .........................................32
INTAKE DOOR MOTOR ...................................33
Exploded View .........................................................33

VTL-3
C
D
E
F
G
H
J
K
L
MA
B
VTL
N
O
P
ON-VEHICLE MAINTENANCE ....................77
AIR CONDITIONER FILTER ..............................77
Exploded View ........................................................77
Removal and Installation .........................................77
Replacement ...........................................................77
ON-VEHICLE REPAIR .................................78
PRESET SWITCH ..............................................78
Exploded View ........................................................78
Removal and Installation .........................................78
REAR CONTROL SWITCH ................................79
Exploded View ........................................................79
Removal and Installation .........................................79
A/C AUTO AMP. .................................................80
Exploded View ........................................................80
Removal and Installation .........................................80
AMBIENT SENSOR ...........................................81
Exploded View ........................................................81
Removal and Installation .........................................81
GAS SENSOR ....................................................82
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM ............................................................................
82
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Exploded View ..............................................
82
WITH INTELLIGENT AIR CONDITIONER SYS-
TEM : Removal and Installation ..............................
82
IN-VEHICLE SENSOR .......................................83
Exploded View ........................................................83
Removal and Installation .........................................83
SUNLOAD SENSOR ..........................................84
Exploded View ........................................................84
Removal and Installation .........................................84
INTAKE SENSOR ..............................................85
Exploded View ........................................................85
Removal and Installation .........................................86
BLOWER UNIT ...................................................87
Exploded View ........................................................87
Removal and Installation .........................................88
BLOWER MOTOR ..............................................90
Exploded View ........................................................90
Removal and Installation .........................................90
INTAKE DOOR MOTOR ....................................91
Exploded View ........................................................91
Removal and Installation .........................................91
HEATER & COOLING UNIT ASSEMBLY .........93
Exploded View ........................................................93
Removal and Installation .........................................95
MODE DOOR MOTOR .......................................98
Exploded View .........................................................98
Removal and Installation .........................................98
AIR MIX DOOR MOTOR ...................................99
Exploded View .........................................................99
Removal and Installation .........................................99
HEATER CORE ...............................................101
Exploded View .......................................................101
Removal and Installation .......................................102
DUCT AND GRILLE ........................................103
CENTER VENTILATOR GRILLE .............................103
CENTER VENTILATOR GRILLE : Exploded View ..103
CENTER VENTILATOR GRILLE : Removal and
Installation .............................................................
103
SIDE VENTILATOR GRILLE ...................................103
SIDE VENTILATOR GRILLE : Exploded View ......104
SIDE VENTILATOR GRILLE : Removal and In-
stallation ................................................................
104
SIDE DEFROSTER GRILLE ....................................104
SIDE DEFROSTER GRILLE : Exploded View ......105
SIDE DEFROSTER GRILLE : Removal and In-
stallation ................................................................
105
VENTILATOR DUCT ................................................105
VENTILATOR DUCT : Exploded View ..................106
VENTILATOR DUCT : Removal and Installation ...106
SIDE DEFROSTER NOZZLE ...................................107
SIDE DEFROSTER NOZZLE : Exploded View .....107
SIDE DEFROSTER NOZZLE : Removal and In-
stallation ................................................................
107
DEFROSTER NOZZLE ............................................108
DEFROSTER NOZZLE : Exploded View ..............108
DEFROSTER NOZZLE : Removal and Installation
..
109
REAR VENTILATOR GRILLE .................................109
REAR VENTILATOR GRILLE : Exploded View ....110
REAR VENTILATOR GRILLE : Removal and In-
stallation ................................................................
110
REAR VENTILATOR DUCT 1 .................................110
REAR VENTILATOR DUCT 1 : Exploded View ....111
REAR VENTILATOR DUCT 1 : Removal and In-
stallation ................................................................
111
REAR VENTILATOR DUCT 2 .................................111
REAR VENTILATOR DUCT 2 : Exploded View ....112
REAR VENTILATOR DUCT 2 : Removal and In-
stallation ................................................................
112
REAR FOOT DUCT 1 ..............................................112
REAR FOOT DUCT 1 : Exploded View .................113
REAR FOOT DUCT 1 : Removal and Installation ..113
REAR FOOT DUCT 2 ..............................................114
REAR FOOT DUCT 2 : Exploded View .................114

PRECAUTIONS
VTL-7
< PRECAUTION >[WITHOUT 7 INCH DISPLAY]
C
D
E
F
G
H
J
K
L
MA
B
VTL
N
O
P
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000003845339
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the “SRS AIRBAG” and
“SEAT BELT” of this Service Manual.
WARNING:
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
 Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SRS AIRBAG”.
 Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-
vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.
Precaution Necessary for Steering Wheel Rotation after Battery Disconnect
INFOID:0000000003845340
NOTE:
 Before removing and installing any control units, first turn the push-button ignition switch to the LOCK posi-
tion, then disconnect both battery cables.
 After finishing work, confirm that all control unit connectors are connected properly, then re-connect both
battery cables.
 Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If a DTC is detected, perform trouble diagnosis according to self-diagnosis results.
This vehicle is equipped with a push-button ignition switch and a steering lock unit.
If the battery is disconnected or discharged, the steering wheel will lock and cannot be turned.
If turning the steering wheel is required with the battery disconnected or discharged, follow the procedure
below before starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2. Turn the push-button ignition switch to ACC position.
(At this time, the steering lock will be released.)
3. Disconnect both battery cables. The steering lock will remain released with both battery cables discon-
nected and the steering wheel can be turned.
4. Perform the necessary repair operation.
5. When the repair work is completed, re-connect both battery cables. With the brake pedal released, turn
the push-button ignition switch from ACC position to ON position, then to LOCK position. (The steering
wheel will lock when the push-button ignition switch is turned to LOCK position.)
6. Perform self-diagnosis check of all control units using CONSULT-III.

PRECAUTIONS
VTL-11
< PRECAUTION >[WITHOUT 7 INCH DISPLAY]
C
D
E
F
G
H
J
K
L
MA
B
VTL
N
O
P
 Perform leakage test and make sure that there is no leakage from connections after connecting line.
Disconnect that line and replace the O-ring when the refrigerant leaking point is found. Then tighten
connections of seal seat to the specified torque.
Service EquipmentINFOID:0000000003802524
RECOVERY/RECYCLING EQUIPMENT
Be certain to follow the manufacturer’s instructions for machine operation and machine maintenance. Never
introduce any refrigerant other than that specified into the machine.
ELECTRICAL LEAK DETECTOR
Be certain to follow the manufacturer’s instructions for tester operation and tester maintenance.
VACUUM PUMP
The lubricant contained inside the vacuum pump is not compatible
with the specified lubricant for HFC-134a (R-134a) A/C systems.
The vent side of the vacuum pump is exposed to atmospheric pres-
sure. So the vacuum pump lubricant may migrate out of the pump
into the service hose. This is possible when the pump is switched
OFF after evacuation (vacuuming) and hose is connected to it.
To prevent this migration, use a manual valve placed near the hose-
to-pump connection, as per the following.
 Vacuum pumps usually have a manual isolator valve as part of the
pump. Close this valve to isolate the service hose from the pump.
 Use a hose equipped with a manual shut-off valve near the pump
end for pumps without an isolator. Close the valve to isolate the
hose from the pump.
 Disconnect the hose from the pump if the hose has an automatic
shut-off valve. As long as the hose is connected, the valve is open
and lubricating oil may migrate.
Some one-way valves open when vacuum is applied and close
under no vacuum condition. Such valves may restrict the pump’s
ability to pull a deep vacuum and are not recommended.
MANIFOLD GAUGE SET
RHA861F
RHA270DA

VTL-14
< PRECAUTION >[WITHOUT 7 INCH DISPLAY]
COMPRESSOR
COMPRESSOR
General PrecautionsINFOID:0000000003802525
CAUTION:
 Plug all openings to prevent moisture and foreign matter from entering.
 Store it in the same way at it is when mounted on the car when the compressor is removed.
 Follow “Maintenance of Lubricant Quantity in Compressor” exactly when replacing or repairing
compressor. Refer to HA-28, "
Maintenance of Lubricant Quantity".
 Keep friction surfaces between clutch and pulley clean. Wipe it off by using a clean waste cloth
moistened with thinner if the surface is contaminated with lubricant.
 Turn the compressor shaft by hand more than five turns in both directions after compressor service
operation. This distributes equally lubricant inside the compressor. Let the engine idle and operate
the compressor for one hour after the compressor is installed.
 Apply voltage to the new one and check for normal operation after replacing the compressor magnet
clutch.

VTL-20
< ON-VEHICLE MAINTENANCE >[WITHOUT 7 INCH DISPLAY]
AIR CONDITIONER FILTER
ON-VEHICLE MAINTENANCE
AIR CONDITIONER FILTER
Exploded ViewINFOID:0000000003774654
Removal and InstallationINFOID:0000000003774655
REMOVAL
1. Remove filter cover (1), and then remove air conditioner filter
(2).
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION:
 If the filter is deformed/damaged when removing, replace it with a new one. Deformed/damaged filter
may deteriorate the duct collecting performance.
 When installing, handle the filter with extreme care to avoid deforming/damaging.
ReplacementINFOID:0000000003774656
Replace air conditioner filter.
Refer to MA-6, "
Periodic Maintenance".
Affix a caution label inside the glove box when replacing filter.
1. Heater & cooling unit assembly 2. Air conditioner filter 3. Filter cover
JPIIA0895ZZ
JPIIA0896ZZ

VTL-64
< PRECAUTION >[WITH 7 INCH DISPLAY]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000003894443
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the “SRS AIRBAG” and
“SEAT BELT” of this Service Manual.
WARNING:
 To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.
 Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal
injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see the “SRS AIRBAG”.
 Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-
ness connectors.
Precaution Necessary for Steering Wheel Rotation after Battery Disconnect
INFOID:0000000003894445
NOTE:
 Before removing and installing any control units, first turn the push-button ignition switch to the LOCK posi-
tion, then disconnect both battery cables.
 After finishing work, confirm that all control unit connectors are connected properly, then re-connect both
battery cables.
 Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If a DTC is detected, perform trouble diagnosis according to self-diagnosis results.
This vehicle is equipped with a push-button ignition switch and a steering lock unit.
If the battery is disconnected or discharged, the steering wheel will lock and cannot be turned.
If turning the steering wheel is required with the battery disconnected or discharged, follow the procedure
below before starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables.
NOTE:
Supply power using jumper cables if battery is discharged.
2. Turn the push-button ignition switch to ACC position.
(At this time, the steering lock will be released.)
3. Disconnect both battery cables. The steering lock will remain released with both battery cables discon-
nected and the steering wheel can be turned.
4. Perform the necessary repair operation.
5. When the repair work is completed, re-connect both battery cables. With the brake pedal released, turn
the push-button ignition switch from ACC position to ON position, then to LOCK position. (The steering
wheel will lock when the push-button ignition switch is turned to LOCK position.)
6. Perform self-diagnosis check of all control units using CONSULT-III.

VTL-68
< PRECAUTION >[WITH 7 INCH DISPLAY]
PRECAUTIONS
 Perform leakage test and make sure that there is no leakage from connections after connecting line.
Disconnect that line and replace the O-ring when the refrigerant leaking point is found. Then tighten
connections of seal seat to the specified torque.
Service EquipmentINFOID:0000000003894452
RECOVERY/RECYCLING EQUIPMENT
Be certain to follow the manufacturer’s instructions for machine operation and machine maintenance. Never
introduce any refrigerant other than that specified into the machine.
ELECTRICAL LEAK DETECTOR
Be certain to follow the manufacturer’s instructions for tester operation and tester maintenance.
VACUUM PUMP
The lubricant contained inside the vacuum pump is not compatible
with the specified lubricant for HFC-134a (R-134a) A/C systems.
The vent side of the vacuum pump is exposed to atmospheric pres-
sure. So the vacuum pump lubricant may migrate out of the pump
into the service hose. This is possible when the pump is switched
OFF after evacuation (vacuuming) and hose is connected to it.
To prevent this migration, use a manual valve placed near the hose-
to-pump connection, as per the following.
 Vacuum pumps usually have a manual isolator valve as part of the
pump. Close this valve to isolate the service hose from the pump.
 Use a hose equipped with a manual shut-off valve near the pump
end for pumps without an isolator. Close the valve to isolate the
hose from the pump.
 Disconnect the hose from the pump if the hose has an automatic
shut-off valve. As long as the hose is connected, the valve is open
and lubricating oil may migrate.
Some one-way valves open when vacuum is applied and close
under no vacuum condition. Such valves may restrict the pump’s
ability to pull a deep vacuum and are not recommended.
MANIFOLD GAUGE SET
RHA861F
RHA270DA