2011 INFINITI QX56 Factory Service Manual

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Page 3161 of 5598

INFINITI QX56 2011 Factory Service Manual
AUTOMATIC AIR CONDITIONING SYSTEMHAC-55
< WIRING DIAGRAM > [AUTOMATIC AIR CONDITIONING]
C
D
E
F
G H
J
K L
M A
B
HAC
N
O P
JCIWM0802GB
Revision: 2010 May2011 QX56

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INFINITI QX56 2011 Factory Service Manual
HAC-56
< WIRING DIAGRAM >[AUTOMATIC AIR CONDITIONING]
AUTOMATIC AIR CONDITIONING SYSTEM
JCIWM0803GB
Revision: 2010 May2011 QX56

Page 3163 of 5598

INFINITI QX56 2011 Factory Service Manual
AUTOMATIC AIR CONDITIONING SYSTEMHAC-57
< WIRING DIAGRAM > [AUTOMATIC AIR CONDITIONING]
C
D
E
F
G H
J
K L
M A
B
HAC
N
O P
JCIWM0804GB
Revision: 2010 May2011 QX56

Page 3164 of 5598

INFINITI QX56 2011 Factory Service Manual
HAC-58
< WIRING DIAGRAM >[AUTOMATIC AIR CONDITIONING]
AUTOMATIC AIR CONDITIONING SYSTEM
JCIWM0805GB
Revision: 2010 May2011 QX56

Page 3165 of 5598

INFINITI QX56 2011 Factory Service Manual
AUTOMATIC AIR CONDITIONING SYSTEMHAC-59
< WIRING DIAGRAM > [AUTOMATIC AIR CONDITIONING]
C
D
E
F
G H
J
K L
M A
B
HAC
N
O P
JCIWM0806GB
Revision: 2010 May2011 QX56

Page 3166 of 5598

INFINITI QX56 2011 Factory Service Manual
HAC-60
< BASIC INSPECTION >[AUTOMATIC AIR CONDITIONING]
DIAGNOSIS AND REPAIR WORK FLOW
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORK FLOW
Work FlowINFOID:0000000006275891
OVERALL SEQUENCE
DETAILED FLOW

Page 3167 of 5598

INFINITI QX56 2011 Factory Service Manual
DIAGNOSIS AND REPAIR WORK FLOWHAC-61
< BASIC INSPECTION > [AUTOMATIC AIR CONDITIONING]
C
D
E
F
G H
J
K L
M A
B
HAC
N
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>> GO TO 2.
2.SYMPTOM CHECK
Check the symptom from the customers information.

Page 3168 of 5598

INFINITI QX56 2011 Factory Service Manual
HAC-62
< BASIC INSPECTION >[AUTOMATIC AIR CONDITIONING]
OPERATION INSPECTION
OPERATION INSPECTION
FRONT AUTOMATIC AIR CONDITIONING SYSTEM
FRONT AUTOMATIC AIR CONDITIONIN
G SYSTEM : Work ProcedureINFO

HAC-62
< BASIC INSPECTION >[AUTOMATIC AIR CONDITIONING]
OPERATION INSPECTION
OPERATION INSPECTION
FRONT AUTOMATIC AIR CONDITIONING SYSTEM
FRONT AUTOMATIC AIR CONDITIONIN
G SYSTEM : Work ProcedureINFOID:0000000006275892
DESCRIPTION
The purpose of the operational check is to che ck that the individual system operates normally.
OPERATION INSPECTION
1.CHECK MEMORY FUNCTION
1. Set temperature control dial (driver side) to 32.0 °C (90 °F).
2. Press OFF switch.
3. Turn ignition switch OFF.
4. Turn ignition switch ON.
5. Press AUTO switch.
6. Check that set temperature is maintained.
Is the inspection result normal?
YES >> GO TO 2.
NO >> GO TO 12.
2.CHECK FRONT BLOWER MOTOR
1. Start engine.
2. Operate fan switch.
3. Check that fan speed changes. C heck operation for all fan speeds.
Is the inspection result normal?
YES >> GO TO 3.
NO >> GO TO 12.
3.CHECK DISCHARGE AIR (MOD E SWITCH AND DEF SWITCH)
1. Operate fan switch to set the fan speed to maximum speed.
2. Operate MODE switch and DEF switch.
3. Check that air outlets change according to each indica ted air outlet by placing a hand in front of the out-
lets. Refer to VTL-6, "
VENTILATION SYSTEM (FRONT AIR CO NDITIONING) : System Description".
Is the inspection result normal?
YES >> GO TO 4.
NO >> GO TO 12.
4.CHECK DISCHRGE AIR (UPPER VENTILATOR SWITCH)
1. Press MODE switch to set the air outlet to other than D/F or DEF.
2. Press upper ventilator switch. The upper ventilator switch indicator is turns ON.
3. Check that air flow blows from upper ventilator.
4. Press upper ventilator switch again. The upper ventilator switch indicator is turns OFF.
5. Check that air flow from upper ventilator stops.
Is the inspection result normal?
YES-1 >> With ACCS (advanced climate control system): GO TO 5.
YES-2 >> Without ACCS (advanced clim ate control system): GO TO 6.
NO >> GO TO 12.
5.CHECK INTAKE AIR [WITH ACCS (A DVANCED CLIMATE CONTROL SYSTEM)]
1. Press intake switch to set the air inlet to recirculation. The intake switch indicator turns ON.
2. Listen to intake sound and confirm air inlets change.
3. Press intake switch again to set the air inlet to fresh air intake. The intake switch indicator turns OFF.
4. Listen to intake sound and confirm air inlets change.
Is the inspection result normal?
Check condition : Engine running at normal operating temperature.
Revision: 2010 May2011 QX56

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