2007 INFINITI QX56 service

ATC-32
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
How to Perform Trouble Diagnosis for Quick and Accurate Repair
INFOID:0000000003533243
WORK FLOW
SYMPTOM TABLE
Component Parts and Harness Connector LocationINFOID:0000000003533244
ENGINE COMPARTMENT
*1AT C - 5 0 , "Operational Check (Front)"
or AT C - 5 1 , "
Operational Check
(Rear)" .
SHA900E
Symptom Reference Page
A/C system does not come on. Go to Trouble Diagnosis Procedure for A/C System. AT C - 5 2
A/C system display is malfunctioning. Go to Navigation System. AV- 7 3
A/C system cannot be controlled. Go to Self-diagnosis Function.AT C - 4 8 , "
A/C Sys-
tem Self-Diagno-
sis Function"
Air outlet does not change.
Go to Trouble Diagnosis Procedure for Mode Door Motor. AT C - 5 4
Mode door motor is malfunctioning.
Discharge air temperature does not change.
Go to Trouble Diagnosis Procedure for Air Mix Door Motor. AT C - 5 9
Air mix door motor is malfunctioning.
Intake door does not change.
Go to Trouble Diagnosis Procedure for Intake Door Motor. AT C - 7 0
Intake door motor is malfunctioning.
Defroster door motor is malfunctioning. Go to Trouble Diagnosis Procedure for Defroster Door Motor. AT C - 7 4
Front blower motor operation is malfunction-
ing.Go to Trouble Diagnosis Procedure for Front Blower Motor.
AT C - 7 8
Rear blower motor operation is malfunction-
ing.Go to Trouble Diagnosis Procedure for Rear Blower Motor.
AT C - 8 5
Rear discharge air temperature and/or air
outlet does not change.Go to Trouble Diagnosis Procedure for Rear Air Control circuit.
AT C - 9 3
Magnet clutch does not engage. Go to Trouble Diagnosis Procedure for Magnet Clutch. AT C - 9 6
Insufficient cooling Go to Trouble Diagnosis Procedure for Insufficient Cooling.AT C - 1 0 0
Insufficient heating Go to Trouble Diagnosis Procedure for Insufficient Heating.AT C - 1 0 8
Noise Go to Trouble Diagnosis Procedure for Noise.AT C - 1 0 9
Self-diagnosis cannot be performed. Go to Trouble Diagnosis Procedure for Self-diagnosis. AT C - 111
Memory function does not operate. Go to Trouble Diagnosis Procedure for Memory Function.AT C - 11 2

TROUBLE DIAGNOSISATC-33
< SERVICE INFORMATION >
C
DE
F
G H
I
K L
M A
B
AT C
N
O P
FRONT PASSENGER COMPARTMENT
1 Water Valve F68 2 Refrigerant pressure sensor E48 3 Ambient sensor E1
4 A/C Compressor F3
WJIA1912E

ATC-34
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
1 Front air control M49, M50 2 Rear blower switch (front) M52 3 In-vehicle sensor M32
4 Intake sensor M146 5 Intake door motor M58 6 Variable blower control M122
7 Air mix door motor (passenger) M143 8 Mode door motor M142 9 Defroster door motor M144
10 Air mix door motor (driver) M147 11 Optical sensor M402
WJIA1969E

TROUBLE DIAGNOSISATC-35
< SERVICE INFORMATION >
C
DE
F
G H
I
K L
M A
B
AT C
N
O P
REAR PASSENGER COMPARTMENT
WJIA1345E

ATC-36
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
Schematic
INFOID:0000000003533245
WJWA0323E

TROUBLE DIAGNOSISATC-37
< SERVICE INFORMATION >
C
DE
F
G H
I
K L
M A
B
AT C
N
O P
Wiring Diagram - A/C,A -INFOID:0000000003533246
WJWA0455E

ATC-38
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
WJWA0325E

TROUBLE DIAGNOSISATC-39
< SERVICE INFORMATION >
C
DE
F
G H
I
K L
M A
B
AT C
N
O P
WJWA0326E