2004 INFINITI QX56 Factory Service Manual

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Page 433 of 3371

INFINITI QX56 2004 Factory Service Manual ATC-28
AIR CONDITIONER CONTROL
Revision: August 20072004 QX56
Rear Air Control
REAR TEMPERATURE/MODE DIAL (REAR)
Increases or decreases the rear zone temperature and adjusts the mode simultaneously. F

Page 434 of 3371

INFINITI QX56 2004 Factory Service Manual AIR CONDITIONER CONTROL
ATC-29
C
D
E
F
G
H
I
K
L
MA
B
AT C
Revision: August 20072004 QX56
Discharge Air FlowEJS002C0
FRONT
REAR
WJIA0540E
WJIA0528E
WJIA0541E
WJIA0893E

Page 435 of 3371

INFINITI QX56 2004 Factory Service Manual ATC-30
AIR CONDITIONER CONTROL
Revision: August 20072004 QX56
System Description (Front)EJS002C1
CONTROLS AND THEIR FUNCTIONS
WJIA1680E
WJIA0757E

Page 436 of 3371

INFINITI QX56 2004 Factory Service Manual AIR CONDITIONER CONTROL
ATC-31
C
D
E
F
G
H
I
K
L
MA
B
AT C
Revision: August 20072004 QX56
System Description (Rear)EJS002C2
CONTROLS AND THEIR FUNCTIONS
WJIA0623E
WJIA0758E

Page 437 of 3371

INFINITI QX56 2004 Factory Service Manual ATC-32
AIR CONDITIONER CONTROL
Revision: August 20072004 QX56
CAN Communication System DescriptionEJS002C3
Refer to LAN-5, "CAN COMMUNICATION" .

Page 438 of 3371

INFINITI QX56 2004 Factory Service Manual TROUBLE DIAGNOSIS
ATC-33
C
D
E
F
G
H
I
K
L
MA
B
AT C
Revision: August 20072004 QX56
TROUBLE DIAGNOSISPFP:00004
CONSULT-II Function (BCM)EJS002C4
CONSULT-II can display each diagnostic item using the d

Page 439 of 3371

INFINITI QX56 2004 Factory Service Manual ATC-34
TROUBLE DIAGNOSIS
Revision: August 20072004 QX56
DATA MONITOR
Operation Procedure
1. Touch “AIR CONDITIONER” on “SELECT TEST ITEM” screen.
2. Touch “DATA MONITOR” on “SELECT DIAG

Page 440 of 3371

INFINITI QX56 2004 Factory Service Manual TROUBLE DIAGNOSIS
ATC-35
C
D
E
F
G
H
I
K
L
MA
B
AT C
Revision: August 20072004 QX56
How to Perform Trouble Diagnosis for Quick and Accurate RepairEJS002C5
WORK FLOW
SYMPTOM TABLE
*1ATC-56, "Operationa

TROUBLE DIAGNOSIS
ATC-35
C
D
E
F
G
H
I
K
L
MA
B
AT C
Revision: August 20072004 QX56
How to Perform Trouble Diagnosis for Quick and Accurate RepairEJS002C5
WORK FLOW
SYMPTOM TABLE
*1ATC-56, "Operational Check (Front)"
or AT C - 5 9 , "
Operational Check
(Rear)" .
SHA9 00 E
Symptom Reference Page
A/C system does not come on. Go to Trouble Diagnosis Procedure for A/C System.AT C - 6 0 , "
Power
Supply and
Ground Circuit for
Front Air Control"
A/C system display is malfunctioning. Go to "Navigation System".AV-61, "NAVIGA-
TION SYSTEM"
A/C system cannot be controlled. Go to Self-diagnosis Function.AT C - 5 3 , "
A/C Sys-
tem Self-diagno-
sis Function"
Air outlet does not change.
Go to Trouble Diagnosis Procedure for Mode Door Motor.AT C - 6 3 , "Mode
Door Motor Cir-
cuit"Mode door motor is malfunctioning.
Discharge air temperature does not change.
Go to Trouble Diagnosis Procedure for Air Mix Door Motor.ATC-67, "
Air Mix
Door Motor Cir-
cuit"Air mix door motor is malfunctioning.
Intake door does not change.
Go to Trouble Diagnosis Procedure for Intake Door Motor.ATC-76, "
Intake
Door Motor Cir-
cuit"Intake door motor is malfunctioning.
Defroster door motor is malfunctioning. Go to Trouble Diagnosis Procedure for Defroster Door Motor.AT C - 7 9 ,
"Defroster Door
Motor Circuit"
Front blower motor operation is malfunction-
ing.Go to Trouble Diagnosis Procedure for Front Blower Motor.AT C - 8 3 , "Front
Blower Motor Cir-
cuit"
Rear blower motor operation is malfunction-
ing.Go to Trouble Diagnosis Procedure for Rear Blower Motor.AT C - 9 0 , "Rear
Blower Motor Cir-
cuit"
Rear discharge air temperature and/or air
outlet does not change.Go to Trouble Diagnosis Procedure for Rear Air Control circuit.ATC-101, "Rear
Air Control Circuit"
Magnet clutch does not engage. Go to Trouble Diagnosis Procedure for Magnet Clutch.ATC-104, "Mag-
net Clutch Circuit"
Insufficient cooling Go to Trouble Diagnosis Procedure for Insufficient Cooling.AT C - 11 0 , "Insuffi-
cient Cooling"
Insufficient heating Go to Trouble Diagnosis Procedure for Insufficient Heating.AT C - 11 7 , "Insuffi-
cient Heating"
Noise Go to Trouble Diagnosis Procedure for Noise.ATC-118, "Noise"

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