2006 INFINITI QX56 center console

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Revision: November 2009 2006 QX56
DIAGNOSTIC PROCEDURE FOR IN-VEHICLE
SENSOR ..........................................................
. 138
COMPONENT INSPECTION ........................... . 140
Optical Sensor Circuit ......................................... . 140
COMPONENT DESCRIPTION ........................ . 140
OPTICAL INPUT PROCESS ........................... . 140
DIAGNOSTIC PROCEDURE FOR OPTICAL
SENSOR .......................................................... . 141
Intake Sensor Circuit ........................................... . 142
COMPONENT DESCRIPTION ........................ . 142
DIAGNOSTIC PROCEDURE FOR INTAKE SEN-
SOR ................................................................. . 142
COMPONENT INSPECTION ........................... . 143
CONTROL UNIT .................................................... . 144
Removal and Installation ..................................... . 144
FRONT AIR CONTROL ................................... . 144
REAR AIR CONTROL ...................................... . 144
AMBIENT SENSOR ............................................... . 145
Removal and Installation ..................................... . 145
REMOVAL ........................................................ . 145
INSTALLATION ................................................ . 145
IN-VEHICLE SENSOR ........................................... . 146
Removal and Installation ..................................... . 146
REMOVAL ........................................................ . 146
INSTALLATION ................................................ . 146
OPTICAL SENSOR ............................................... . 147
Removal and Installation ..................................... . 147
INTAKE SENSOR .................................................. . 148
Removal and Installation ..................................... . 148
REMOVAL ........................................................ . 148
INSTALLATION ................................................ . 148
BLOWER MOTOR ................................................. . 149
Components ........................................................ . 149
Removal and Installation ..................................... . 149
FRONT BLOWER MOTOR .............................. . 149
REAR BLOWER MOTOR ................................ . 150
IN-CABIN MICROFILTER ...................................... . 151
Removal and Installation ..................................... . 151
FUNCTION ....................................................... . 151
REPLACEMENT TIMING ................................. . 151
REPLACEMENT PROCEDURE ...................... . 151
HEATER & COOLING UNIT ASSEMBLY ............. . 153
Components ........................................................ . 153
Removal and Installation ..................................... . 154
FRONT HEATER AND COOLING UNIT ASSEM-
BLY ................................................................... . 154
REAR HEATER AND COOLING UNIT ASSEM-
BLY ................................................................... . 155
HEATER CORE ..................................................... . 156
Components ........................................................ . 156
Removal and Installation ..................................... . 157
FRONT HEATER CORE .................................. . 157
REAR HEATER CORE .................................... . 158
DEFROSTER DOOR MOTOR ............................... . 159
Removal and Installation ..................................... . 159
REMOVAL ........................................................ . 159
INSTALLATION ................................................ . 159INTAKE DOOR MOTOR ........................................
.160
Removal and Installation ..................................... .160
REMOVAL ........................................................ .160
INSTALLATION ................................................ .160
MODE DOOR MOTOR ........................................... .161
Removal and Installation ..................................... .161
REMOVAL ........................................................ .161
INSTALLATION ................................................ .161
AIR MIX DOOR MOTOR ........................................ .162
Components ........................................................ .162
Removal and Installation ..................................... .162
FRONT AIR MIX DOOR MOTOR (DRIVER) .... .162
FRONT AIR MIX DOOR MOTOR (PASSENGER) .163
REAR AIR MIX DOOR MOTOR ....................... .163
VARIABLE BLOWER CONTROL .......................... .164
Removal and Installation ..................................... .164
REMOVAL ........................................................ .164
INSTALLATION ................................................ .164
REAR BLOWER MOTOR RESISTOR ................... .165
Removal and Installation ..................................... .165
REMOVAL ........................................................ .165
INSTALLATION ................................................ .165
DUCTS AND GRILLES .......................................... .166
Components ........................................................ .166
Removal and Installation ..................................... .169
CENTER CONSOLE HEAT DUCT AND REAR
FINISHER ASSEMBLY GRILLE ....................... .169
DEFROSTER NOZZLE .................................... .169
RH AND LH SIDE DEMISTER DUCT .............. .169
RH AND LH VENTILATOR DUCT .................... .169
CENTER VENTILATOR DUCT ........................ .169
FLOOR DUCT .................................................. .169
REAR OVERHEAD DUCTS ............................. .170
REAR FLOOR DUCT ....................................... .170
GRILLES .......................................................... .170
REFRIGERANT LINES .......................................... .171
HFC-134a (R-134a) Service Procedure .............. .171
SETTING OF SERVICE TOOLS AND EQUIP-
MENT ............................................................... .171
Components ........................................................ .173
Removal and Installation for Compressor ........... .175
REMOVAL ........................................................ .175
INSTALLATION ................................................ .176
Removal and Installation for Compressor Clutch . 176 REMOVAL ........................................................ .176
INSPECTION ................................................... .177
INSTALLATION ................................................ .177
BREAK-IN OPERATION ................................... .179
Removal and Installation for Low-pressure Flexible
Hose .................................................................... .179
REMOVAL ........................................................ .179
INSTALLATION ................................................ .179
Removal and Installation for High-pressure Flexible
Hose .................................................................... .179
REMOVAL ........................................................ .179
INSTALLATION ................................................ .179
Removal and Installation for High-pressure Pipe . 179 REMOVAL ........................................................ .179
INSTALLATION ................................................ .179

MODE DOOR MOTORATC-161
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Revision: November 2009 2006 QX56
MODE DOOR MOTORPFP:27731
Removal and InstallationEJS003YK
Mode Door Motor - Front Heater and Cooling Unit Assembly
REMOVAL
1. Remove the center console lower cover LH. Refer to IP-10, "INSTRUMENT PANEL ASSEMBLY" .
2. Disconnect the mode door motor electrical connector.
3. Remove the two screws and remove the mode door motor.
INSTALLATION
Installation is in the reverse order of removal.
LJIA0139E
1. Front heater and cooling unit assembly 2. Intake door motor 3. Air mix door motor (driver)
4. Variable blower control 5. Air mix door motor (passenger) 6. Mode door motor
7. Defroster door motor

AIR MIX DOOR MOTORATC-163
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FRONT AIR MIX DOOR MOTOR (PASSENGER)
Removal
1. Remove the center console lower cover LH. Refer to IP-10, "INSTRUMENT PANEL ASSEMBLY" .
2. Disconnect the air mix door motor electrical connector.
3. Remove the three screws and remove the air mix door motor.
Installation
Installation is in the reverse order of removal.
REAR AIR MIX DOOR MOTOR
Removal
1. Remove the luggage side lower finisher RH. Refer to EI-40, "LUGGAGE FLOOR TRIM" .
2. Disconnect the rear air mix door motor electrical connector.
3. Remove the three screws and remove the rear air mix door motor.
Installation
Installation is in the reverse order of removal.
LJIA0021E

DUCTS AND GRILLESATC-169
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Revision: November 2009 2006 QX56
Removal and InstallationEJS003YQ
CENTER CONSOLE HEAT DUCT AND REAR FINISHER ASSEMBLY GRILLE
Removal
The center console must be removed and disassembled to remove the heat duct and rear finisher assembly
grille. Refer to IP-16, "
REMOVAL AND INSTALLATION" .
Installation
Installation is in the reverse order of removal.
DEFROSTER NOZZLE
Removal
1. Remove the instrument panel trim. Refer to IP-10, "INSTRUMENT PANEL ASSEMBLY" .
2. Remove the front heater and cooling unit assembly. Refer to ATC-154, "
FRONT HEATER AND COOLING
UNIT ASSEMBLY" .
3. Remove the defroster nozzle.
Installation
Installation is in the reverse order of removal.
RH AND LH SIDE DEMISTER DUCT
Removal
1. Remove the instrument panel trim. Refer to IP-10, "INSTRUMENT PANEL ASSEMBLY" .
2. Remove the front heater and cooling unit assembly. Refer to ATC-154, "
FRONT HEATER AND COOLING
UNIT ASSEMBLY" .
3. Remove the RH or LH side demister duct.
Installation
Installation is in the reverse order of removal.
RH AND LH VENTILATOR DUCT
Removal
1. Remove the instrument panel trim. Refer to IP-10, "INSTRUMENT PANEL ASSEMBLY" .
2. Remove the front heater and cooling unit assembly. Refer to ATC-154, "
FRONT HEATER AND COOLING
UNIT ASSEMBLY" .
3. Remove the RH or LH ventilator duct.
Installation
Installation is in the reverse order of removal.
CENTER VENTILATOR DUCT
Removal
1. Remove the instrument panel trim. Refer to IP-10, "INSTRUMENT PANEL ASSEMBLY" .
2. Remove the front heater and cooling unit assembly. Refer to ATC-154, "
FRONT HEATER AND COOLING
UNIT ASSEMBLY" .
3. Remove the defroster nozzle.
4. Remove the RH and LH side demister ducts.
5. Remove the RH and LH ventilator ducts.
6. Remove the center ventilator duct.
Installation
Installation is in the reverse order of removal.
FLOOR DUCT
Removal
1. Remove the floor carpet. Refer to EI-37, "FLOOR TRIM" .
7. LH ventilator grille 8. RH ventilator grille 9. RH side ventilator and demister grille
10. Storage tray bottom cover (RH)

AUDIOAV-55
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Revision: November 2009 2006 QX56
Removal and InstallationEKS00BIQ
AUDIO UNIT
Removal
1. Remove cluster lid C. Refer to IP-12, "Removal" .
2. Remove audio unit screws, using power tool.
3. Pull out audio unit and disconnect audio unit connectors.
Installation
Installation is in the reverse order of removal.
AV S W I T C H
Removal
1. Disconnect battery negative terminal.
2. Remove center console. Refer to IP-16, "
REMOVAL AND INSTALLATION" .
3. Disconnect center speaker.
4. Remove AV switch screws.
5. Carefully remove the AV switch.
Installation
Installation is in the reverse order of removal.
BOSE SPEAKER AMP.
Removal
1. Remove the accelerator pedal. Refer to ACC-3, "ACCELERATOR CONTROL SYSTEM" .
2. Remove BCM. Refer to BCS-20, "
BCM" .
3. Disconnect Bose speaker amp. and satellite radio tuner (if equipped) connectors.
4. Remove Bose speaker amp./satellite radio tuner bracket screws and slide Bose speaker amp./satellite radio tuner bracket down.
WKIA1490E
WKIA1798E
WKIA1605E

AV-56
AUDIO
Revision: November 20092006 QX56
5. Remove Bose speaker amp. screws (A) and remove Bose
speaker amp. from Bose speaker amp./satellite radio tuner
bracket.
Installation
Installation is in the reverse order of removal.
CENTER SPEAKER
Removal
1. Remove center console. Refer to IP-16, "REMOVAL AND INSTALLATION" .
2. Remove cluster lid D. Refer to IP-12, "
Removal" .
3. Disconnect center speaker connectors.
4. Remove the center speaker screws and remove the center speaker.
Installation
Installation is in the reverse order of removal.
FRONT DOOR SPEAKER
Removal
1. Remove front door finisher. Refer to EI-32, "DOOR FINISHER" .
2. Remove the four front door speaker screws.
3. Disconnect connector and remove front door speaker.
Installation
Installation is in the reverse order of removal.
FRONT TWEETER
Removal
1. Remove front tweeter grille. Refer to IP-10, "INSTRUMENT PANEL ASSEMBLY" .
LKIA0678E
WKIA1799E
WKIA1498E

DVD ENTERTAINMENT SYSTEMAV-83
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Revision: November 2009 2006 QX56
Removal and InstallationEKS00BJB
DVD PLAYER
Removal
1. Disconnect battery negative terminal.
2. Remove center console compartment. Refer to IP-16, "
REMOVAL AND INSTALLATION" .
3. Remove the DVD player screws.
4. Disconnect DVD connectors and remove DVD player.
Installation
Installation is in reverse order of removal.
VIDEO MONITOR
Removal
1. Remove rear roof console assembly. Refer to EI-38, "HEADLINING" .
2. Disconnect the video monitor connector.
3. Remove the video housing screws.
4. Remove the video monitor and housing.
5. Remove the video monitor hinge screws and remove the video monitor.
Installation
Installation is in reverse order of removal.
WKIA1503E
WKIA1502E
WKIA1219E

NAVIGATION SYSTEMAV-167
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Revision: November 2009 2006 QX56
Removal and InstallationEKS00GFE
AV S W I T C H
Refer to AV- 5 5 , "AV SWITCH" .
DISPLAY CONTROL UNIT
Removal
1. Remove display unit. Refer to AV- 1 6 7 , "DISPLAY UNIT" .
2. Remove display control unit.
Installation
Installation is in reverse order of removal.
DISPLAY UNIT
Removal
1. Remove center console. Refer to IP-16, "Center Console" .
2. Remove cluster lid D. Refer to IP-12, "
CLUSTER LID D" .
3. Disconnect center speaker connector.
4. Disconnect display unit connectors.
5. Remove display unit.
6. Remove display unit brackets.
Installation
Installation is in reverse order of removal.
GPS ANTENNA
Removal
1. Remove center console. Refer to IP-16, "Center Console" .
2. Remove cluster lid D. Refer to IP-12, "
CLUSTER LID D" .
3. Disconnect center speaker.
4. Remove defroster grille. Refer to IP-10, "
INSTRUMENT PANEL ASSEMBLY" .
WKIA1512E
WKIA1512E