2007 INFINITI QX56 Factory Service Manual

service reset headrest emergency towing fuse chart heater traction control

Load previous 8 pages

Page 385 of 3061

INFINITI QX56 2007 Factory Service Manual
PREPARATIONATC-15
< SERVICE INFORMATION >
C
DE
F
G H
I
K L
M A
B
AT C
N
O P
Tool name Description
(J-41810-NI)
Refrigerant identifier equipment (R-
134a) For checking refrigerant purity and
system c

Page 386 of 3061

INFINITI QX56 2007 Factory Service Manual
ATC-16
< SERVICE INFORMATION >
REFRIGERATION SYSTEM
REFRIGERATION SYSTEM
Refrigerant CycleINFOID:0000000003533229
REFRIGERANT FLOW
The refrigerant flows in the standard pattern, that is, through the

Page 387 of 3061

INFINITI QX56 2007 Factory Service Manual
REFRIGERATION SYSTEMATC-17
< SERVICE INFORMATION >
C
DE
F
G H
I
K L
M A
B
AT C
N
O P
cm2, 433.6 psi)], the release port on the pressure relief valve automatically opens and releases refrigerant into

Page 388 of 3061

INFINITI QX56 2007 Factory Service Manual
ATC-18
< SERVICE INFORMATION >
REFRIGERATION SYSTEM
REAR REFRIGERATION SYSTEM
1. Defroster nozzle 2. LH side demister duct 3. LH ventilator duct
4. RH side demister duct 5. RH ventilator duct 6. Cent

Page 389 of 3061

INFINITI QX56 2007 Factory Service Manual
REFRIGERATION SYSTEMATC-19
< SERVICE INFORMATION >
C
DE
F
G H
I
K L
M A
B
AT C
N
O P1. Rear floor duct 2. Rear heater and cooling unit assembly 3. Rear lower overhead duct
4. Rear upper overhead duct

Page 390 of 3061

INFINITI QX56 2007 Factory Service Manual
ATC-20
< SERVICE INFORMATION >
OIL
OIL
Maintenance of Oil Quantity in CompressorINFOID:0000000003533232
The oil in the compressor circulates through the system with the refrigerant. Add oil to compre

Page 391 of 3061

INFINITI QX56 2007 Factory Service Manual
OIL
ATC-21
< SERVICE INFORMATION >
C
D E
F
G H
I
K L
M A
B
AT C
N
O P
1. Before connecting recovery/recycling equipment to vehicle, check recovery/recycling equipment gauges.
No refrigerant pressure

Page 392 of 3061

INFINITI QX56 2007 Factory Service Manual
ATC-22
< SERVICE INFORMATION >
AIR CONDITIONER CONTROL
AIR CONDITIONER CONTROL
DescriptionINFOID:0000000003533233
The front air control provides automatic regulation of the vehicles interior tempera

ATC-22
< SERVICE INFORMATION >
AIR CONDITIONER CONTROL
AIR CONDITIONER CONTROL
DescriptionINFOID:0000000003533233
The front air control provides automatic regulation of the vehicle's interior temperature. The system is based
on the driver's and passenger's selected "set temperat ure", regardless of the outside temperature changes.
This is done by utilizing a microcomputer, also referred to as the front air control, which receives input signals
from the following seven sensors:
• Ambient sensor
• In-vehicle sensor
• Intake sensor
• Optical sensor (providing one input for driver and one input for passenger side)
• PBR (Position Balanced Resistor)
• Vehicle speed sensor (via CAN communication)
• Engine coolant temperature (via CAN communication)
The front air control uses these signals (including the set temperature) to automatically control:
• Outlet air volume
• Air temperature
• Air distribution
The front air control also provides separate regulation of the vehicle's interior temperature for the rear passen-
ger area. The system is based on the temperature and r ear blower settings selected from rear control
switches located on the front air control, or from the temperature and rear blower settings selected from rear
control switches on the rear air control, when the front air control switches are set to the rear position.
The front air control is used to select: • Outlet air volume
• Air temperature/distribution
OperationINFOID:0000000003533234
AIR MIX DOORS CONTROL
The air mix doors are automatically controlled so that in-vehicle temperature is maintained at a predetermined
value by the temperature setting, ambient temper ature, in-vehicle temperature and amount of sunload.
BLOWER SPEED CONTROL
Blower speed is automatically controlled by the temperat ure setting, ambient temperature, in-vehicle tempera-
ture, intake temperature, amount of sunload and air mix door position.
When AUTO switch is pressed, the blower motor starts to gradually increase air flow volume (if required).
When engine coolant temperature is low, the blower moto r operation is delayed to prevent cool air from flow-
ing.
INTAKE DOOR CONTROL
The intake door is automatically controlled by the tem perature setting, ambient temperature, in-vehicle tem-
perature, intake temperature, amount of sunl oad and by the ON-OFF operation of the compressor.
MODE DOOR CONTROL
The mode door is automatically controlled by the temperat ure setting, ambient temperature, in-vehicle temper-
ature, intake temperature and amount of sunload.
DEFROSTER DOOR CONTROL
The defroster door is controlled by: Turning the defroster dial to front defroster.

Load next 8 pages

Page: < prev 1-10 ... 353-360 361-368 369-376 377-384 385-392 393-400 401-408 409-416 417-424 ... 3064 next >

oil change manual radio set wiring air bleeding change wheel headlamp