2008 INFINITI QX56 air condition

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Page 2321 of 4083

INFINITI QX56 2008  Factory Service Manual HAC-68
< COMPONENT DIAGNOSIS >[AUTOMATIC AIR CONDITIONER]
REAR AIR CONTROL SYSTEM
1. Turn ignition switch OFF.
2. Disconnect the A/C auto amp. harness connector.
3. Check continuity between A/C auto a

Page 2322 of 4083

INFINITI QX56 2008  Factory Service Manual REAR AIR CONTROL SYSTEMHAC-69
< COMPONENT DIAGNOSIS > [AUTOMATIC AIR CONDITIONER]
C
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G H
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M A
B
HAC
N
O P
Check voltage between A/C auto am p. harness connector M50 (A)
terminal 28 and M49 (

Page 2323 of 4083

INFINITI QX56 2008  Factory Service Manual HAC-70
< COMPONENT DIAGNOSIS >[AUTOMATIC AIR CONDITIONER]
REAR AIR CONTROL SYSTEM
Check voltage between A/C auto amp. harness connector M50 ter-
minal 30 and ground while cycling mode switch through a

Page 2324 of 4083

INFINITI QX56 2008  Factory Service Manual MAGNET CLUTCHHAC-71
< COMPONENT DIAGNOSIS > [AUTOMATIC AIR CONDITIONER]
C
D
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F
G H
J
K L
M A
B
HAC
N
O P
MAGNET CLUTCH
System DescriptionINFOID:0000000001679808
SYSTEM DESCRIPTION
The A/C auto amp. c

Page 2325 of 4083

INFINITI QX56 2008  Factory Service Manual HAC-72
< COMPONENT DIAGNOSIS >[AUTOMATIC AIR CONDITIONER]
MAGNET CLUTCH
>> GO TO 6.
6.CHECK INTAKE SENSOR
Check and verify intake sensor circuit. Refer to  HAC-86, "
Intake Sensor Diagnosis Procedure"

Page 2326 of 4083

INFINITI QX56 2008  Factory Service Manual MAGNET CLUTCHHAC-73
< COMPONENT DIAGNOSIS > [AUTOMATIC AIR CONDITIONER]
C
D
E
F
G H
J
K L
M A
B
HAC
N
O P
NO >> Check 10A fuse (No. 42, located in IPDM E/R), and GO TO 3.
3.CHECK CIRCUIT CONTINUITY BE

Page 2327 of 4083

INFINITI QX56 2008  Factory Service Manual HAC-74
< COMPONENT DIAGNOSIS >[AUTOMATIC AIR CONDITIONER]
MAGNET CLUTCH
1. Reconnect BCM connector and A/C auto amp. connector.
2. Turn ignition switch ON.
3. Check voltage between A/C auto amp. harne

Page 2328 of 4083

INFINITI QX56 2008  Factory Service Manual MAGNET CLUTCHHAC-75
< 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 BCM connector and A/C auto amp. connector.
3. Check