VENTILATION, HEATER & AIR CONDITIONER

SECTION
VENTILATION SYSTEM
VTL B

E
CONTENTS
FUNCTION DIAGNOSIS ............................... 3 SIDE DEFROSTER GRILLE ......................................12 F
SIDE DEFROSTER GRILLE : Removal and In-
SWITCHES AND THEIR CONTROL FUNC- stallation ..................................................................12
TION .................................................................... 3 G
System Description ................................................... 3 VENTILATOR DUCT ..................................................12
VENTILATOR DUCT : Removal and Installation ....12
AIR DISTRIBUTION ............................................ 5
System Description ................................................... 5 UPPER VENTILATOR DUCT ....................................13 H
UPPER VENTILATOR DUCT : Removal and In-
PRECAUTION ............................................... 6 stallation ..................................................................13

DEFROSTER NOZZLE AND SIDE DEFROSTER VTL

PRECAUTIONS ................................................... 6
Precaution for Supplemental Restraint System NOZZLE .....................................................................13
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- DEFROSTER NOZZLE AND SIDE DEFROSTER
SIONER" ................................................................... 6 NOZZLE : Removal and Installation ........................13 J
Precaution Necessary for Steering Wheel Rota- REAR VENTILATOR GRILLE ...................................14
tion after Battery Disconnect ..................................... 6 REAR VENTILATOR GRILLE : Removal and In-
stallation ..................................................................14 K
PREPARATION ............................................ 8
REAR VENTILATOR DUCT 1 ...................................14
PREPARATION ................................................... 8 REAR VENTILATOR DUCT 1 : Removal and In-
Commercial Service Tool .......................................... 8 L
stallation ..................................................................14
ON-VEHICLE MAINTENANCE ..................... 9 REAR VENTILATOR DUCT 2 ...................................15
REAR VENTILATOR DUCT 2 : Removal and In- M
AIR CONDITIONER FILTER ............................... 9
stallation ..................................................................15
Exploded View .......................................................... 9
Removal and Installation ........................................... 9 REAR VENTILATOR DUCT 3 ...................................15
Replacement ............................................................. 9 REAR VENTILATOR DUCT 3 : Removal and In- N
stallation ..................................................................15
ON-VEHICLE REPAIR ................................. 10
REAR VENTILATOR DUCT 4 ...................................15 O
DUCT AND GRILLE ...........................................10 REAR VENTILATOR DUCT 4 : Removal and In-
Exploded View ........................................................ 10 stallation ..................................................................16
CENTER VENTILATOR GRILLE .............................. 11 REAR FOOT DUCT 1 ................................................16 P
CENTER VENTILATOR GRILLE : Removal and REAR FOOT DUCT 1 : Removal and Installation....16
Installation ............................................................... 11
REAR FOOT DUCT 2 ................................................16
SIDE VENTILATOR GRILLE ..................................... 12 REAR FOOT DUCT 2 : Removal and Installation....16
SIDE VENTILATOR GRILLE : Removal and In-
stallation .................................................................. 12 REAR FOOT DUCT 3 ................................................16
REAR FOOT DUCT 3 : Removal and Installation....16

Revision: 2008 October VTL-1 Z51

HEATER DUCT ......................................................... 17 BLOWER UNIT .................................................. 19
HEATER DUCT : Removal and Installation (LHD Exploded View ........................................................ 19
models) ................................................................... 17
BLOWER UNIT .......................................................... 20
FOOT DUCT .............................................................. 17 BLOWER UNIT : Removal and Installation ............. 20
FOOT DUCT : Removal and Installation (LHD
models) ................................................................... 17 BLOWER MOTOR ..................................................... 21
FOOT DUCT : Removal and Installation (RHD BLOWER MOTOR : Removal and Installation ........ 21
models) ................................................................... 18

Revision: 2008 October VTL-2 Z51

 SWITCHES AND THEIR CONTROL FUNCTION
< FUNCTION DIAGNOSIS >
FUNCTION DIAGNOSIS A
SWITCHES AND THEIR CONTROL FUNCTION
System Description INFOID:0000000004755355
B

WITHOUT 7 INCH DISPLAY

C

VTL

JPIIA1255GB
J

JPIIA0508GB

Revision: 2008 October VTL-3 Z51

 SWITCHES AND THEIR CONTROL FUNCTION
< FUNCTION DIAGNOSIS >
WITH 7 INCH DISPLAY

JPIIA1255GB

JPIIA0452GB

Revision: 2008 October VTL-4 Z51

 AIR DISTRIBUTION
< FUNCTION DIAGNOSIS >
AIR DISTRIBUTION
A
System Description INFOID:0000000004755356

JPIIA0509GB F

VTL

K
JPIIA0510GB

Revision: 2008 October VTL-5 Z51

 PRECAUTIONS
< PRECAUTION >
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER" INFOID:0000000004809075

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. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.
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.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the igni-
tion ON or engine running, DO NOT use air or electric power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.
• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the
battery, and wait at least 3 minutes before performing any service.
Precaution Necessary for Steering Wheel Rotation after Battery Disconnect
INFOID:0000000004809076

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.

Revision: 2008 October VTL-6 Z51

 PRECAUTIONS
< PRECAUTION >
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 A
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.
B

VTL

Revision: 2008 October VTL-7 Z51

 PREPARATION
< PREPARATION >
PREPARATION
PREPARATION
Commercial Service Tool INFOID:0000000004755359

Tool name Description

Remover tools Remove clips, pawls, metal clips

PIIB7923J

Revision: 2008 October VTL-8 Z51

 AIR CONDITIONER FILTER
< ON-VEHICLE MAINTENANCE >
ON-VEHICLE MAINTENANCE A
AIR CONDITIONER FILTER
Exploded View INFOID:0000000004755360
B

JPIIA0895ZZ
H
1. Heater & cooling unit assembly 2. Air conditioner filter 3. Filter cover

Removal and Installation INFOID:0000000004755361

VTL

REMOVAL
1. Remove the filter cover (1), and then remove the air conditioner J
filter (2).

JPIIA0552ZZ M
INSTALLATION
Installation is basically the reverse order of removal.
CAUTION: N
• If the filter is deformed/damaged when removing, replace it with a new one. Deformed/damaged filter
may deteriorate the dust collecting performance.
• When installing, handle the filter with extreme care to avoid deforming/damaging. O
Replacement INFOID:0000000004755362

Replace air conditioner filter. P

Refer to MA-5, "Periodic Maintenance".
Affix a caution label inside the glove box when replacing filter.

Revision: 2008 October VTL-9 Z51

 DUCT AND GRILLE
< ON-VEHICLE REPAIR >
ON-VEHICLE REPAIR
DUCT AND GRILLE
Exploded View INFOID:0000000004755363

FRONT

JPIIA1225ZZ

1. Defroster nozzle 2. Side defroster nozzle (left) 3. Foot duct (left)

4. Heater duct (LHD models) 5. Heater & cooling unit assembly 6. Ventilator duct
7. Side defroster grille (left) 8. Instrument panel assembly 9. Side ventilator grille (left)
10. Center ventilator grille assembly 11. Side ventilator grille (right) 12. Side defroster grille (right)
13. Center speaker grille (upper ventila- 14. Blower unit assembly 15. Foot duct (right)
tor grille)
16. Side defroster nozzle (right) 17. Upper ventilator duct

REAR

Revision: 2008 October VTL-10 Z51

 DUCT AND GRILLE
< ON-VEHICLE REPAIR >

VTL
JPIIA0457ZZ

1. Heater & cooling unit assembly 2. Rear ventilator duct 4 (center pillar lower 3. Rear ventilator grille (left)
garnish left) J
4. Rear ventilator duct 3 (left) 5. Rear ventilator duct 3 (right) 6. Rear ventilator grille (right)
7. Rear ventilator duct 4 (center pillar lower 8. Rear foot duct 1 (right) 9. Rear ventilator duct 1
garnish right) K
10. Rear foot duct 1 (left) 11. Rear foot duct 2 (left) 12. Rear foot duct 3 (left)
13. Rear ventilator duct 2 14. Rear foot duct 3 (right) 15. Rear foot duct 2 (right)
L
CENTER VENTILATOR GRILLE
CENTER VENTILATOR GRILLE : Removal and Installation INFOID:0000000004755364
M
REMOVAL
1. Remove the cluster lid A. Refer to IP-11, "Exploded View".
N
2. Remove the cluster lid D. Refer to IP-11, "Exploded View".
3. Remove the mounting screws (A), and then remove the center
ventilator grille assembly (1). O

JPIIA0582ZZ

INSTALLATION

Revision: 2008 October VTL-11 Z51

 DUCT AND GRILLE
< ON-VEHICLE REPAIR >
Installation is basically the reverse order of removal.
SIDE VENTILATOR GRILLE
SIDE VENTILATOR GRILLE : Removal and Installation INFOID:0000000004755365

REMOVAL
1. Remove the instrument side finisher (LH/RH). Refer to IP-11, "Exploded View".
2. Remove the mounting screw (A).
3. Remove side ventilator grille metal clips using remover tool (B),
and then remove side ventilator grille (1).

: Metal clip

JPIIA0583ZZ

INSTALLATION
Installation is basically the reverse order of removal.
SIDE DEFROSTER GRILLE
SIDE DEFROSTER GRILLE : Removal and Installation INFOID:0000000004755366

REMOVAL
1. Remove the defroster nozzle and side defroster nozzle. Refer to VTL-10, "Exploded View".
2. Remove the mounting screws (A), and then remove the side
defroster grilles (left/right) (1).

JPIIA0584ZZ

INSTALLATION
Installation is basically the reverse order of removal.
VENTILATOR DUCT
VENTILATOR DUCT : Removal and Installation INFOID:0000000004755367

REMOVAL
1. Remove the defroster nozzle and side defroster nozzle. Refer to VTL-10, "Exploded View".

Revision: 2008 October VTL-12 Z51

 DUCT AND GRILLE
< ON-VEHICLE REPAIR >
2. Remove the mounting screws (A), and then remove the ventilator duct (1).
A

JPIIA0585ZZ F
INSTALLATION
Installation is basically the reverse order of removal.
UPPER VENTILATOR DUCT G

UPPER VENTILATOR DUCT : Removal and Installation INFOID:0000000004755368

H
REMOVAL
1. Remove the defroster nozzle and side defroster nozzle. Refer to VTL-10, "Exploded View".
2. Remove the mounting screws (A), and then remove the upper VTL
ventilator duct (1).

L
JPIIA0586ZZ

INSTALLATION
Installation is basically the reverse order of removal. M
DEFROSTER NOZZLE AND SIDE DEFROSTER NOZZLE
DEFROSTER NOZZLE AND SIDE DEFROSTER NOZZLE : Removal and Installation
INFOID:0000000004755369
N

REMOVAL
O
1. Remove the instrument panel assembly. Refer to IP-11, "Exploded View".

Revision: 2008 October VTL-13 Z51

 DUCT AND GRILLE
< ON-VEHICLE REPAIR >
2. Remove the mounting screws (A), and then remove the defroster nozzle (1) together with the side
defroster nozzle (right) (2) and side defroster nozzle (left) (3).

JPIIA0587ZZ

3. Remove the side defroster nozzle (right) and side defroster nozzle (left) from the defroster nozzle.
INSTALLATION
Installation is basically the reverse order of removal.
REAR VENTILATOR GRILLE
REAR VENTILATOR GRILLE : Removal and Installation INFOID:0000000004755370

REMOVAL
1. Remove the center pillar lower garnish. Refer to INT-19, "Exploded View".

2. Disengage the joints of the tabs, and then remove the rear venti-
lator grilles (1).

:Tab

JPIIA0588ZZ

INSTALLATION
Installation is basically the reverse order of removal.
REAR VENTILATOR DUCT 1
REAR VENTILATOR DUCT 1 : Removal and Installation INFOID:0000000004755371

REMOVAL
1. Remove the rear ventilator duct 2. Refer to VTL-10, "Exploded View".

Revision: 2008 October VTL-14 Z51

 DUCT AND GRILLE
< ON-VEHICLE REPAIR >
2. Remove the rear ventilator duct 1 (1).
A

JPIIA0589ZZ

D
INSTALLATION
Installation is basically the reverse order of removal.
REAR VENTILATOR DUCT 2 E
REAR VENTILATOR DUCT 2 : Removal and Installation INFOID:0000000004755372

REMOVAL F
1. Remove the front seat assembly (left/right). Refer to SE-94, "Exploded View".
2. Remove the lower console finisher (left/right). Refer to IP-19, "Exploded View".
G
3. Remove the screws (A), nuts (B), and clips (C), and then remove rear ventilator duct 2 (1).

VTL

J
JPIIA0590ZZ

INSTALLATION
Installation is basically the reverse order of removal. K
REAR VENTILATOR DUCT 3
REAR VENTILATOR DUCT 3 : Removal and Installation INFOID:0000000004755373 L

REMOVAL
1. Remove the front seat assembly (left). Refer to SE-94, "Exploded View". M
2. Pull up the floor carpet assembly of left side. Refer to INT-23, "Exploded View".
3. Remove the mounting screws (A), and then remove rear ventila-
tor duct 3 (left) (1). N

JPIIA0591ZZ

INSTALLATION
Installation is basically the reverse order of removal.
REAR VENTILATOR DUCT 4

Revision: 2008 October VTL-15 Z51

 DUCT AND GRILLE
< ON-VEHICLE REPAIR >
REAR VENTILATOR DUCT 4 : Removal and Installation INFOID:0000000004755374

REMOVAL
1. Remove the center pillar lower garnish. Refer to INT-19, "Exploded View".
INSTALLATION
Installation is basically the reverse order of removal.
REAR FOOT DUCT 1
REAR FOOT DUCT 1 : Removal and Installation INFOID:0000000004755375

REMOVAL
1. Remove the lower console finisher LH. Refer to IP-19, "Exploded View".
2. Remove the rear foot duct 1 (left) (1).

JPIIA0595ZZ

INSTALLATION
Installation is basically the reverse order of removal.
REAR FOOT DUCT 2
REAR FOOT DUCT 2 : Removal and Installation INFOID:0000000004755376

REMOVAL
1. Remove the rear foot duct 1 (left). Refer to VTL-10, "Exploded View".
2. Pull up the floor carpet assembly (left side). Refer to INT-23, "Exploded View".
3. Remove the mounting clip (A), and then remove the rear foot
duct 2 (left) (1).

JPIIA0597ZZ

INSTALLATION
Installation is basically the reverse order of removal.
REAR FOOT DUCT 3
REAR FOOT DUCT 3 : Removal and Installation INFOID:0000000004755377

REMOVAL
1. Remove the rear foot duct 2 (left). Refer to VTL-10, "Exploded View".

Revision: 2008 October VTL-16 Z51

 DUCT AND GRILLE
< ON-VEHICLE REPAIR >
2. Remove the mounting screw (A), and then remove the rear foot
duct 3 (left) (1). A

JPIIA0593ZZ

D
INSTALLATION
Installation is basically the reverse order of removal.
HEATER DUCT E
HEATER DUCT : Removal and Installation (LHD models) INFOID:0000000004755378

REMOVAL F
1. Remove the instrument lower panel LH. Refer to IP-11, "Exploded View".
2. Remove the mounting screw (A), and then remove the foot duct
(1). G

VTL

JPIIA0599ZZ
J
INSTALLATION
Installation is basically the reverse order of removal.
FOOT DUCT K

FOOT DUCT : Removal and Installation (LHD models) INFOID:0000000004755379

L
REMOVAL
Driver side
1. Remove instrument driver lower panel LH. Refer to IP-11, "Exploded View". M
2. Remove mounting screws (A), and then remove foot duct (left)
(1).
N
: Vehicle front

P
JPIIA1226ZZ

Passenger side
1. Remove blower unit assembly. Refer to VTL-19, "Exploded View".

Revision: 2008 October VTL-17 Z51

 DUCT AND GRILLE
< ON-VEHICLE REPAIR >
2. Remove mounting screws (A) and harness clip, and then
remove foot duct (right) (1).

: Vehicle front

JPIIA1227ZZ

INSTALLATION
Installation is basically the reverse order of removal.
FOOT DUCT : Removal and Installation (RHD models) INFOID:0000000004755380

REMOVAL
Driver side
1. Remove device assembly, and then move device assembly to a position where it dose not inhibit work.
Refer to PB-4, "Exploded View".
2. Remove mounting screws (A), and then remove foot duct (right)
(1).

: Vehicle front

JPIIA1228ZZ

Passenger side
1. Remove mounting screws (A).

: Vehicle front

2. Remove air mix door motor (passenger side). Refer to HAC-112,

"Exploded View" (Without 7 inch display) or HAC-218,
"Exploded View" (With 7 inch display).
3. Remove foot duct (left) (1).

JPIIA1229ZZ

INSTALLATION
Installation is basically the reverse order of removal.

Revision: 2008 October VTL-18 Z51

 BLOWER UNIT
< ON-VEHICLE REPAIR >
BLOWER UNIT
A
Exploded View INFOID:0000000004755381

VTL
JPIIA1224GB

1. Blower unit assembly 2. Heater & cooling unit assembly 3. Steering member J
4. Instrument stay 5. Instrument panel assembly
Refer to GI-4, "Components" for symbols in the figure.
K
DISASSEMBLY

Revision: 2008 October VTL-19 Z51

 BLOWER UNIT
< ON-VEHICLE REPAIR >

JPIIA0455ZZ

1. Shutter box case 2. Intake door 3. Intake door motor

4. Blower motor assembly 5. Intake lower case 6. Outlet seal
7. Intake seal 8. Intake upper case

BLOWER UNIT
BLOWER UNIT : Removal and Installation INFOID:0000000004755382

REMOVAL
1. Remove the instrument panel assembly. Refer to IP-11, "Exploded View".
2. Remove the mounting nuts (A), and then remove the instrument
panel stay (1).

JPIIA0565ZZ

3. Disconnect the intake door motor and blower motor connectors.

Revision: 2008 October VTL-20 Z51

 BLOWER UNIT
< ON-VEHICLE REPAIR >
4. Remove the heater & cooling unit assembly and blower unit mounting bolts (A).
A

H
JPIIA1230ZZ

5. Remove the steering member mounting bolts (B) (right).

6. And remove the blower unit (2) while pulling the steering member (1) to the front. VTL
INSTALLATION
Installation is basically the reverse order of removal.
BLOWER MOTOR J

BLOWER MOTOR : Removal and Installation INFOID:0000000004755383

K
REMOVAL
1. Remove instrument lower panel RH. Refer to IP-11, "Exploded View".
2. Disconnect the blower motor connector. L
3. Remove the mounting screws (A), and then remove the blower
motor (1).
M

O
JPIIA0568ZZ

INSTALLATION
P
Install in the reverse order of removal.

Revision: 2008 October VTL-21 Z51