air condition INFINITI QX56 2008 Factory Service Manual

INFINITI QX56 2008 Factory Service Manual QX56 2008 INFINITI INFINITI https://www.carmanualsonline.info/img/42/57030/w960_57030-0.png INFINITI QX56 2008 Factory Service Manual

Page 2295 of 4083

INFINITI QX56 2008  Factory Service Manual HAC-42
< COMPONENT DIAGNOSIS >[AUTOMATIC AIR CONDITIONER]
INTAKE DOOR MOTOR
Intake Door Motor  Diagnosis Procedure
INFOID:0000000001679791
SYMPTOM:
• Intake door does not change.
• Intake door mot

Page 2296 of 4083

INFINITI QX56 2008  Factory Service Manual INTAKE DOOR MOTORHAC-43
< COMPONENT DIAGNOSIS > [AUTOMATIC AIR CONDITIONER]
C
D
E
F
G H
J
K L
M A
B
HAC
N
O P
1. Turn ignition switch OFF.
2. Disconnect the A/C auto amp. harness connector.
3. Check c

Page 2297 of 4083

INFINITI QX56 2008  Factory Service Manual HAC-44
< COMPONENT DIAGNOSIS >[AUTOMATIC AIR CONDITIONER]
DEFROSTER DOOR MOTOR CIRCUIT
DEFROSTER DOOR 
MOTOR CIRCUIT
System DescriptionINFOID:0000000001679792
SYSTEM DESCRIPTION
Component Parts
Defros

Page 2298 of 4083

INFINITI QX56 2008  Factory Service Manual DEFROSTER DOOR MOTOR CIRCUITHAC-45
< COMPONENT DIAGNOSIS > [AUTOMATIC AIR CONDITIONER]
C
D
E
F
G H
J
K L
M A
B
HAC
N
O P
Defroster Door Motor Co mponent Function CheckINFOID:0000000001679793
INSPECTIO

Page 2299 of 4083

INFINITI QX56 2008  Factory Service Manual HAC-46
< COMPONENT DIAGNOSIS >[AUTOMATIC AIR CONDITIONER]
DEFROSTER DOOR MOTOR CIRCUIT
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 2.
2.CHECK DEFROSTER DOOR MOTOR CIRCUITS FOR SHORT T

Page 2300 of 4083

INFINITI QX56 2008  Factory Service Manual DEFROSTER DOOR MOTOR CIRCUITHAC-47
< COMPONENT DIAGNOSIS > [AUTOMATIC AIR CONDITIONER]
C
D
E
F
G H
J
K L
M A
B
HAC
N
O P
NO >> Repair or replace harness as necessary.
6.CHECK A/C AUTO AMP. FOR PBR POW

Page 2301 of 4083

INFINITI QX56 2008  Factory Service Manual HAC-48
< COMPONENT DIAGNOSIS >[AUTOMATIC AIR CONDITIONER]
DEFROSTER DOOR MOTOR CIRCUIT
1. Reconnect the A/C auto 
amp. harness connector.
2. Turn ignition switch ON.
3. Check voltage between A/C auto

Page 2302 of 4083

INFINITI QX56 2008  Factory Service Manual BLOWER MOTOR CONTROL SYSTEMHAC-49
< COMPONENT DIAGNOSIS > [AUTOMATIC AIR CONDITIONER]
C
D
E
F
G H
J
K L
M A
B
HAC
N
O P
BLOWER MOTOR CONTROL SYSTEM
System DescriptionINFOID:0000000001679795
SYSTEM DES

Page 2303 of 4083

INFINITI QX56 2008  Factory Service Manual HAC-50
< COMPONENT DIAGNOSIS >[AUTOMATIC AIR CONDITIONER]
BLOWER MOTOR CONTROL SYSTEM
Blower Speed Compensation - Sunload
When the in-vehicle temperature and the set temperature 
are very close, the b

Page 2304 of 4083

INFINITI QX56 2008  Factory Service Manual BLOWER MOTOR CONTROL SYSTEMHAC-51
< COMPONENT DIAGNOSIS > [AUTOMATIC AIR CONDITIONER]
C
D
E
F
G H
J
K L
M A
B
HAC
N
O P
YES >> Refer to  HAC-23, "A/C System Self-Diagnosis Code Chart".
NO >> GO TO 5.