2011 INFINITI QX56 door

HAC-120
< DTC/CIRCUIT DIAGNOSIS >[AUTOMATIC AIR CONDITIONING]
DOOR MOTOR COMMUNICATION CIRCUIT
DOOR MOTOR COMMUNICATION CIRCUIT
Diagnosis ProcedureINFOID:0000000006275967
NOTE:
If all of door motor DTCs are detected, check this circuit.
1.CHECK EACH DOOR MOTOR COMMUNICATION SIGNAL
1. Turn ignition switch ON.
2. Check output waveform between A/C auto amp. harness connector and ground with the oscilloscope.
Is the inspection result normal?
YES >> GO TO 2.
NO >> GO TO 3.
2.CHECK EACH DOOR MOTOR COMMUNICA TION SIGNAL CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect A/C auto amp. connecto r and intake door motor connector.
3. Check continuity between A/C auto amp. harness connector and intake door motor harness connector.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Repair harness or connector.
3.CHECK EACH DOOR MOTOR COMMUNICA TION SIGNAL CIRCUIT FOR SHORT
1. Disconnect following connectors.
- Front air mix door motor LH
- Front air mix door motor RH
- Front mode door motor
- Upper vent door motor
- Rear air mix door motor
- Rear mode door motor
2. Check continuity between A/C auto amp. harness connector and ground.
Is the inspection result normal?
YES >> Replace A/C auto amp.. Refer to HAC-146, "Removal and Installation".
NO >> Repair harness or connector.
+
−Output waveform
A/C auto amp.
Connector Terminal
M50 16 Ground
SJIA1453J
A/C auto amp. Intake door motor Continuity
Connector Terminal Connector Terminal
M50 16 M254 3 Existed
A/C auto amp. —Continuity
Connector Terminal
M50 16 Ground Not existed
Revision: 2010 May2011 QX56

FRONT AUTOMATIC AIR CONDITIONING SYSTEMHAC-133
< SYMPTOM DIAGNOSIS > [AUTOMATIC AIR CONDITIONING]
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SYMPTOM DIAGNOSIS
FRONT AUTOMATIC AIR CONDITIONING SYSTEM
Diagnosis Chart By SymptomINFOID:0000000006275980
NOTE:
Perform the self-diagnoses with CONSULT-III before per forming the symptom diagnosis. If DTC is detected,
perform the corresponding diagnosis.
Symptom Corresponding malfunction part Reference
 Front air conditioning system does not activate.
 Front air conditioning system cannot be con-
trolled.
 Operation status of front air conditioning system is
not indicated on front dis-
play. Fail-safe activates Multi AV system
AV- 1 9 9 , "
Symptom Table"
Fail-safe does not acti-
vate Power supply system of A/C auto
amp.
 A/C auto amp. HAC-110, "A/C AUTO AMP. : Diag-
nosis Procedure"
 Air outlet does not change (Except upper ventila-
tion).
 Front mode door motor does not operate normally.  Circuit between front mode door
motor and A/C auto amp.
 Front mode door motor control link-
age
 Front mode door motor
 A/C auto amp. HAC-112, "FRONT MODE DOOR
MOTOR : Diagnosis Procedure"
 Upper ventilator door does not change.
 Upper ventilator door motor does not operate nor-
mally.  Circuit between upper ventilator
door motor and A/C auto amp.
 Upper ventilator door motor installa- tion condition
 Upper ventilator door motor
 A/C auto amp. HAC-116, "UPPER VENTILATOR
DOOR MOTOR : Diagnosis Proce-
dure"
 Discharge air temperature of driver side does not
change.
 Front air mix door motor (driver side) does not op-
erate normally.  Circuit between front air mix door
motor (driver side ) and A/C auto
amp.
 Front air mix door motor (driver side)
installation condition
 Front air mix door motor (driver side)
 A/C auto amp. HAC-110, "FRONT AIR MIX DOOR
MOTOR (DRIVER SIDE) : Diagno-
sis Procedure"
 Discharge air temperature of passenger side does
not change.
 Front air mix door motor (passenger side) does not
operate normally.  Circuit between front air mix door
motor (passenger side) and A/C
auto amp.
 Front air mix door motor (passenger side) installation condition
 Front air mix door motor (passenger side)
 A/C auto amp. HAC-111, "FRONT AIR MIX DOOR
MOTOR (PASSENGER SIDE) : Di-
agnosis Procedure"
 Intake door does not change.
 Intake door motor does not operate normally.
 Circuit between intake door motor
and A/C auto amp.
 Intake door motor control linkage
 Intake door motor
 A/C auto amp. HAC-113, "INTAKE DOOR MOTOR
: Diagnosis Procedure"
All door motors do not operate normally.
 Each door motor power supply and
ground circuit
 A/C auto amp. HAC-118, "Diagnosis Procedure"
Front blower motor operation is malfunctioning.  Power supply system of front blower
motor
 Circuit between front blower motor and A/C auto amp..
 Front blower motor
 A/C auto amp. HAC-121, "Diagnosis Procedure"
Revision: 2010 May2011 QX56

REAR AUTOMATIC AIR CONDITIONING SYSTEMHAC-135
< SYMPTOM DIAGNOSIS > [AUTOMATIC AIR CONDITIONING]
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REAR AUTOMATIC AIR CONDITIONING SYSTEM
Diagnosis Chart By SymptomINFOID:0000000006275981
NOTE:
 Perform the self-diagnoses with CONSULT-III before performing the symptom diagnosis. If DTC is detected,
perform the corresponding diagnosis.
 The following table is based on the condition that fr ont automatic air conditioning system operates normally.
Symptom Corresponding malfunction part Reference
 Rear air conditioning system cannot be controlled. (Front A/C control)
 Operation status of rear air conditioning system is not indicated on front display. Multi AV system
AV- 1 9 9 , "
Symptom Table"
Rear air conditioning sys-
tem cannot be controlled.
(Rear A/C control)Operation status of
rear air conditioning
system is not indicated
on rear A/C control
display
 Power supply system of rear A/C
control
 Rear A/C control HAC-115, "
REAR A/C CONTROL :
Diagnosis Procedure"
Operation status of
rear air conditioning
system is indicated on
rear A/C control dis-
play Communication circuit between rear
A/C control and A/C auto amp.
 A/C auto amp. HAC-127, "
Diagnosis Procedure"
 Air outlet does not change.
 Rear mode door motor does not operate normally.  Circuit between rear mode door mo-
tor and A/C auto amp.
 Rear mode door motor control link- age
 Front mode door motor
 A/C auto amp. HAC-116, "REAR MODE DOOR
MOTOR : Diagnosis Procedure"
 Discharge air temperature does not change.
 Rear air mix door motor does not operate normally.  Circuit between rear air mix door
motor and A/C auto amp.
 Rear air mix door motor installation condition
 Rear air mix door motor
 A/C auto amp. HAC-114, "REAR AIR MIX DOOR
MOTOR : Diagnosis Procedure"
Rear blower motor operation is malfunctioning.
 Power supply system of rear blower
motor
 Circuit between rear blower motor
and A/C auto amp..
 Rear blower motor
 A/C auto amp. HAC-131, "Diagnosis Procedure"
 Insufficient cooling.
 No cool air comes out. (Air flow volume is normal.)  Power supply system of rear A/C re-
lay
 Circuit between rear A/C relay and A/C auto amp..
 Circuit between rear A/C relay and rear A/C solenoid valve.
 Circuit between rear A/C solenoid
valve and ground.
 Rear A/C relay
 Rear A/C solenoid valve
 A/C auto amp.
 Refrigerant cycle
 Air leakage from each duct
 Temperature setti ng trimmer (rear) HAC-139, "REAR AIR CONDI-
TIONER : Diagnosis Procedure"
Revision: 2010 May2011 QX56

HAC-152
< REMOVAL AND INSTALLATION >[AUTOMATIC AIR CONDITIONING]
DOOR MOTOR
DOOR MOTOR
Exploded ViewINFOID:0000000006276008
Front A/C unit
Rear A/C unit
JMIIA0645ZZ
1. A/C unit assembly 2. Upper ventilator door lever 3. Upper ventilator door link
4. Upper ventilator door motor 5. Air mix door motor LH 6. Air mix door adaptor B
7. Air mix door adaptor A 8. Intake door motor 9. Intake door motor lever
10. Intake door lever 11. Blower unit assembly 12. Foot door lever
13. Foot door link 14. Air mix door motor RH 15. Air mix door adaptor
16. Mode door motor 17. Mode door motor lever 18. Mode door motor bracket
19. Main link 20. Ventilator door link 21 Ventilator door lever
22. Defroster lever
JMIIA0646ZZ
Revision: 2010 May2011 QX56

DOOR MOTORHAC-153
< REMOVAL AND INSTALLATION > [AUTOMATIC AIR CONDITIONING]
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MODE DOOR MOTOR
MODE DOOR MOTOR : Re moval and InstallationINFOID:0000000006276009
REMOVAL
1. Remove instrument lower panel RH. Refer to IP-14, "Removal and Installation".
2. Remove power steering control unit bracket.
3. Remove fixing screws (A), and then remove mode door motor (1).
4. Disconnect mode door motor connector.
INSTALLATION
Install in the reverse order of removal.
AIR MIX DOOR MOTOR
AIR MIX DOOR MOTOR : Re moval and InstallationINFOID:0000000006276010
REMOVAL
Driver side
1. Remove automatic drive position control unit. Refer to ADP-136, "Removal and Installation".
2. Remove fixing screws (A), and then remove air door motor LH (1).
3. Disconnect air mix door motor connector.
Passenger side
1. Remove heater core. Refer to HA-44, "HEATER CORE : Removal and Installation".
2. Remove fixing screws, and then remove air mix door motor RH.
INSTALLATION
Install in the reverse order of removal.
INTAKE DOOR MOTOR
INTAKE DOOR MOTOR : Re moval and InstallationINFOID:0000000006276011
REMOVAL
1. Remove blower unit assembly. Refer to VTL-15, "Removal and Installation".
2. Remove fixing screws, and then remove intake door motor.
1. Rear A/C unit assembly 2. Rear mode door lever 2 3. Rear mode door lever 1
4. Rear mode door motor 5. Rear air mix door motor
JMIIA0790ZZ
JMIIA0788ZZ
Revision: 2010 May2011 QX56

HAC-154
< REMOVAL AND INSTALLATION >[AUTOMATIC AIR CONDITIONING]
DOOR MOTOR
3. Disconnect intake door motor connector.
INSTALLATION
Install in the reverse order of removal.
UPPER VENTILATOR DOOR MOTOR
UPPER VENTILATOR DOOR MOTO
R : Removal and InstallationINFOID:0000000006276012
REMOVAL
1. Remove automatic drive position control unit. Refer to ADP-136, "Removal and Installation".
2. Remove fixing screws (A), and then remove intake door motor (1).
3. Disconnect intake door motor connector.
INSTALLATION
Install in the reverse order of removal.
REAR MODE DOOR MOTOR
REAR MODE DOOR MOTOR : Removal and InstallationINFOID:0000000006276013
REMOVAL
1. Remove luggage side lower finisher RH. Refer to INT-36, "LUGGAGE SIDE LOWER FINISHER :
Removal and Installation".
2. Remove fixing screws, and then remove rear mode door motor.
INSTALLATION
Install in the reverse order of removal.
REAR AIR MIX DOOR MOTOR
REAR AIR MIX DOOR MOTOR : Removal and InstallationINFOID:0000000006276014
REMOVAL
1. Remove rear A/C unit assembly. Refer to HA-47, "REAR A/C UNIT ASSEMBLY : Removal and Installa-
tion".
2. Remove fixing screws, and then remove air mix door motor.
INSTALLATION
Install in the reverse order of removal.
JMIIA0789ZZ
Revision: 2010 May2011 QX56

INL-2
LUGGAGE ROOM LAMP CIRCUIT ..................60
Description ........................................................... ...60
Diagnosis Procedure ..............................................60
STEP LAMP CIRCUIT .......................................62
Description ........................................................... ...62
Component Function Check ...................................62
Diagnosis Procedure ..............................................62
PUDDLE LAMP CIRCUIT ..................................64
Description ........................................................... ...64
Diagnosis Procedure ..............................................64
PUSH-BUTTON IGNITION SWITCH ILLUMI-
NATION CIRCUIT ..............................................
65
Component Function Check ................................ ...65
Diagnosis Procedure ..............................................65
SYMPTOM DIAGNOSIS .............................67
INTERIOR LIGHTING SYSTEM SYMPTOMS ...67
Symptom Table ................................................... ...67
REMOVAL AND INSTALLATION ...............68
MAP LAMP ..................................................... ...68
Exploded View ..................................................... ...68
Removal and Installation ........................................68
Replacement ..........................................................68
VANITY MIRROR LAMP ...................................69
Exploded View ..................................................... ...69
Replacement ..........................................................69
GLOVE BOX LAMP ...........................................70
Exploded View ..................................................... ...70
Replacement ..........................................................70
FOOT LAMP ......................................................71
DRIVER SIDE ......................................................... ...71
DRIVER SIDE : Exploded View ..............................71
DRIVER SIDE : Replacement ................................71
PASSENGER SIDE ...................................................71
PASSENGER SIDE : Exploded View .....................71
PASSENGER SIDE : Replac ement ........................72
REAR FOOT LAMP ................................................ ...72
REAR FOOT LAMP : Exploded View .....................72
REAR FOOT LAMP : Removal and Installation ......72
STEP LAMP .......................................................74
Exploded View ..................................................... ...74
Removal and Installation .........................................74
Replacement ...........................................................74
MOOD LAMP .....................................................75
FRONT DOOR ARMREST ..................................... ...75
FRONT DOOR ARMREST : Exploded View ..........75
FRONT DOOR ARMREST : Replacement .............75
REAR DOOR ARMREST ....................................... ...75
REAR DOOR ARMREST : Exploded View .............75
REAR DOOR ARMREST : Replacement ...............76
PERSONAL LAMP ............................................77
Exploded View ..................................................... ...77
Removal and Installation .........................................77
Replacement ...........................................................78
PUDDLE LAMP .............................................. ...79
Exploded View ..................................................... ...79
Removal and Installation .........................................79
LUGGAGE ROOM LAMP ..................................81
Exploded View ..................................................... ...81
Removal and Installation .........................................81
Replacement ...........................................................81
SERVICE DATA AND SPECIFICATIONS
(SDS) .......... ................................................
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SERVICE DATA AND SPECIFICATIONS
(SDS) .............................................................. ...
82
Bulb Specifications ............................................... ...82
Revision: 2010 May2011 QX56

INL-4
< SYSTEM DESCRIPTION >
COMPONENT PARTS
SYSTEM DESCRIPTION
COMPONENT PARTS
Component Parts LocationINFOID:0000000006216048
Component DescriptionINFOID:0000000006216049
1. BCMRefer to BCS-4, "
BODY CONTROL
SYSTEM : Componen t Parts Loca-
tion"
2. Personal lamp 3. Luggage room lamp
4. Remote keyless entry receiver Refer to DLK-11, "
DOOR LOCK
SYSTEM :
ComponentPartsLocation"
5. Back door lock assembly
(back door switch) 6. Automatic back door close switch
7. Door request switch 8. Door switch 9. Step lamp
10. Paddle lamp 11. Optical sensor 12. IPDM E/R Refer to PCS-4, "
Component Parts
Location"
13. Vanity mirror lamp 14. Combination meter 15. Combination switch
16. Front door lock assembly (driver
side) (door key cylinder switch, un-
lock sensor) 17. Door lock and unlock switch 18. Foot lamp
19. Push-button ignition switch 20. AV control unit Refer to AV- 9 , "
Component Parts Lo-
cation"
21. Map lamp
JMLIA0837ZZ
Part Description
BCM Controls the interior lighting system.
IPDM E/R Controls the integrated relay according to the request signal from BCM (via CAN com-
munication).
Remote keyless entry receiver Refer to DLK-12, "
DOOR LOCK SYSTEM : ComponentDescription".
AV control uni Receives the dimmer signal from BCM via CAN communication.
Optical sensor Refer to EXL-7, "
EXTERIOR LIGHTING SYSTEM : ComponentDescription".
Unlock sensor Detects door lock condition of driver side door.
Revision: 2010 May2011 QX56