2006 INFINITI QX56 audio

HEADLININGEI-39
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Revision: November 2009 2006 QX56
CAUTION:
Disconnect both terminals from battery in advance.
REMOVAL
1. Disconnect the battery negative and positive cables, then wait at least 3 minutes.
2. Remove body side trim. Refer to EI-35, "
BODY SIDE TRIM" .
3. Remove luggage floor trim. Refer to EI-40, "
LUGGAGE FLOOR TRIM" .
4. Remove sunvisor assemblies.
5. Remove sunvisor clips.
6. Remove sunroof welt (if equipped).
7. Remove front roof console.

Disconnect harnesses.
8. Remove rear roof console.

Disconnect harnesses.
9. Remove assist grips.
10. Remove lamp assembly and rear roof finisher.

Disconnect harness.
11. Remove headlining.

Remove clips from rear of headlining.

Disconnect harnesses.
12. Remove rear air control.

Disconnect harness.
13. Remove rear audio control assembly.

Disconnect harness.
14. Remove lamp assemblies.

Disconnect harnesses.
15. Remove air vents.
16. Remove the front roof console bracket.
17. Remove rear roof console front bracket.
18. Remove assist grip brackets from roof.
INSTALLATION
Installation is in the reverse order of removal.
1. Headlining (without sunroof) 2. Assist grip bracket 3. Assist grip
4. Sunvisor assembly LH 5. Cap LH 6. Sunvisor holder
7. Front roof console 8. Sunglass bin9. Sunroof welt
10. Cap RH 11. Sunvisor assembly RH12. Rear roof console bracket
13. Rear storage bin or DVD display 14. Rear air control 15. Rear audio control assembly
16. Rear roof console 17. Rear roof console finisher18. Rear storage bin
19. Air vent 20. Lamp assembly21. Plastic clip
22. Headlining (with sunroof) 23. Rear lamp lens24. Rear lamp
25. Rear roof finisher 26. Plastic clip27. Metal clip

SQUEAK AND RATTLE TROUBLE DIAGNOSESGW-7
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Revision: November 2009 2006 QX56
80845-71L00: 30 mm (1.18 in) thick, 30×50 mm (1.18 ×1.97 in)
FELT CLOTH TAPE
Used to insulate where movement does not occur. Ideal for instrument panel applications.
68370-4B000: 15× 25 mm (0.59×0.98 in) pad/68239-13E00: 5 mm (0.20 in) wide tape roll. The following mate-
rials not found in the kit can also be used to repair squeaks and rattles.
UHMW (TEFLON) TAPE
Insulates where slight movement is present. Ideal for instrument panel applications.
SILICONE GREASE
Used instead of UHMW tape that will be visible or not fit.
Note: Will only last a few months.
SILICONE SPRAY
Use when grease cannot be applied.
DUCT TAPE
Use to eliminate movement.
CONFIRM THE REPAIR
Confirm that the cause of a noise is repaired by test driving the vehicle. Operate the vehicle under the same
conditions as when the noise originally occurred. Refer to the notes on the Diagnostic Worksheet.
Generic Squeak and Rattle TroubleshootingEIS004TO
Refer to Table of Contents for specific component removal and installation information.
INSTRUMENT PANEL
Most incidents are caused by contact and movement between:
1. The cluster lid A and instrument panel
2. Acrylic lens and combination meter housing
3. Instrument panel to front pillar garnish
4. Instrument panel to windshield
5. Instrument panel mounting pins
6. Wiring harnesses behind the combination meter
7. A/C defroster duct and duct joint
These incidents can usually be located by tapping or moving the components to duplicate the noise or by
pressing on the components while driving to stop the noise. Most of these incidents can be repaired by apply-
ing felt cloth tape or silicone spray (in hard to reach areas). Urethane pads can be used to insulate wiring har-
ness.
CAUTION:
Do not use silicone spray to isolate a squeak or rattle. If you saturate the area with silicone, you will
not be able to recheck the repair.
CENTER CONSOLE
Components to pay attention to include:
1. Shifter assembly cover to finisher
2. A/C control unit and cluster lid C
3. Wiring harnesses behind audio and A/C control unit
The instrument panel repair and isolation procedures also apply to the center console.
DOORS
Pay attention to the:
1. Finisher and inner panel making a slapping noise
2. Inside handle escutcheon to door finisher
3. Wiring harnesses tapping
4. Door striker out of alignment causing a popping noise on starts and stops
Tapping or moving the components or pressing on them while driving to duplicate the conditions can isolate
many of these incidents. You can usually insulate the areas with felt cloth tape or insulator foam blocks from
the NISSAN Squeak and Rattle Kit (J-43980) to repair the noise.

GW-90
REAR WINDOW DEFOGGER
Revision: November 20092006 QX56
Door Mirror RH (Door Mirror Defogger) Circuit CheckEIS005Z2
1. CHECK DOOR MIRROR DEFOGGER POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect door mirror RH.
3. Turn ignition switch ON.
4. Check voltage between door mirror RH connector and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair or replace harness.
2. CHECK DOOR MIRROR DEFOGGER GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between door mirror RH connector D107 termi- nal 11 and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness.
3. CHECK DOOR MIRROR DEFOGGER
Check continuity between each door mirror RH terminals 10 and 11.
OK or NG
OK >> Repair or replace harness.
NG >> Replace door mirror RH. Refer to GW-94, "
Door Mirror
Assembly" .
Rear Window Defogger Signal CheckEIS005Z3
1. CHECK AV COMMUNICATION LINE
AV communication line check is executed. Refer to AV- 4 4 , "
Audio Communication Line Check" .
OK or NG
OK >> GO TO 2.
NG >> Replace display control unit. Refer to AV- 1 6 7 , "
DISPLAY CONTROL UNIT" .
ConnectorTerminals
ConditionVoltage (V)
(Approx.)
(+) (-)
D107 10 Ground Rear window defogger
switch ON
Battery voltage
Rear window defogger
switch OFF 0
LIIA1456E
11 - Ground
: Continuity should exist.
LIIA1458E
10 - 11 : Continuity should exist.
LIIA2725E
Is rear window defogger displayed on the display?

IDX-2
ALPHABETICAL INDEX
Numerics
2-4WD shift solenoid valve ..... TF-94
, TF-154, TF-167
4WD - Wiring diagram ....................................... TF-24
4WD shift switch ................................................ TF-66
4WD solenoid valve ................ TF-90, TF-154, TF-167
4WD system description .................................... TF-15
4WD system diagram ........................................ TF-19
A
A/C air flow ...................................................... ATC-30
A/C compressor clutch removal and installation .. ATC-
176
A/C compressor mounting ............................. ATC-175
A/C compressor precaution ............................. ATC-11
A/C compressor special service tool ................ ATC-14
A/C control operation (auto A/C) ...................... ATC-27
A/C diagnostic work flow (auto A/C) .............. ATC-130
A/C evaporator ............................................... ATC-184
A/C HFC134a (R134a) system identification ..... ATC-6
A/C HFC134a (R134a) system precaution ........ ATC-5
A/C HFC134a (R134a) system service procedure ATC-
171
A/C HFC134a (R134a) system service tools ... ATC-14
A/C HFC134a system service equipment precaution ...
ATC-11
A/C lubricant (R134a) ...................................... ATC-22
A/C lubrication oil ............................................. ATC-22
A/C operational check ....................... ATC-58, ATC-60
A/C self-diagnoses (auto A/C) ........ ATC-56, ATC-130
A/C service data specification ........................ ATC-191
A/C trouble diagnoses (auto A/C) .................... ATC-34
A/C, A - Wiring diagram ................................... ATC-44
A/T fluid checking ...................... AT-12, AT-51, MA-22
A/T fluid cooler cleaning .................................... AT-14
A/T fluid replacement ............................. AT-12, MA-24
A/T fluid temperature sensor ........................... AT-127
A/T IND - Wiring diagram .................................... DI-41
A/T indicator ........................................................ DI-41
A/T shift lock system ........................................ AT-221
A/T trouble diagnoses ........................................ AT-42
ABS - Wiring diagram ..................................... BRC-16
ABS (anti-lock brake system) ........................... BRC-7
Accelerator control system ............................... ACC-3
Accelerator pedal position (APP) sensor . EC-547, EC-
553, EC-567
Accelerator pedal released position learning ..... EC-78
AF1B1-Wiring diagram EC-216, EC-225, EC-234, EC-
244, EC-577
AF1B2-Wiring diagram EC-218, EC-227, EC-236, EC-
246, EC-579
AF1HB1-Wiring diagram .................................. EC-157
AF1HB2-Wiring diagram .................................. EC-159
Aiming adjustment .................................. LT-29, LT-78
Air bag .............................................................. SRS-3
Air bag precautions .............................................. AV-4
Air cleaner and air duct ..................................... EM-15
Air cleaner filter replacement ................ EM-16, MA-16
Air conditioner cut control ................................. EC-28
Air flow meter - See Mass air flow sensor EC-171, EC-
180
Air fuel ratio sensor 1 .. EC-213, EC-223, EC-232, EC-
241, EC-575
Air fuel ratio sensor 1 heater ........................... EC-156
Air mix. door motor .......................................... ATC-70
Ambient sensor ............................. ATC-134, ATC-145
Angular tightening application ............................. EM-4
Antenna .............................................................. AV-60
APPS1 - Wiring diagram ................................. EC-549
APPS2 - Wiring diagram ................................. EC-555
APPS3 - Wiring diagram ................................. EC-569
ASC/BS - Wiring diagram ............................... EC-513
ASC/SW - Wiring diagram .............................. EC-496
ASCBOF - Wiring diagram .............................. EC-587
ASCD ................................................................ EC-29
ASCD (automatic speed control device) ........... ACS-3
ASCD brake switch ........................... EC-511, EC-586
ASCD indicator lamp ....................................... EC-593
ASCD steering switch ..................................... EC-494
ASCIND - Wiring diagram ............................... EC-594
ATP switch ............................ TF-107, TF-110, TF-115
Audio .................................................................... AV-6
AUDIO - Wiring diagram .................................... AV-11
AUT/DP - Wiring diagram .................................. SE-16
Auto air conditioner - Wiring diagram .............. ATC-44
Auto anti-dazzling inside mirror ........... GW-72, GW-73
Autolamp ............................................................ LT-47
Automatic amplifier ......................................... ATC-61
Automatic drive positioner .................................. SE-11
Automatic transmission number .......................... GI-49
B
Back door ........................................................... BL-99
Back door trim ..................................................... EI-32
Back sonar .......................................................... DI-60
BACK/L - Wiring diagram ................................. LT-109
Back-up lamp ................................................... LT-109
Ball joint (front) ................................................ FSU-15
Basic inspection ................................................ EC-71
Battery ................................................................. SC-4
Battery/Starting/Charging System Tester SC-6, SC-12,
SC-19
BCM (Body control module) ................ BCS-3, AV-109
Block heater ...................................................... EM-78
Blower motor ................................... ATC-93, ATC-149
Body alignment ................................................ BL-172
Body component parts ..................................... BL-161
Body construction ............................................ BL-171
Body exterior paint color .................................. BL-160
Body mounting ................................................. BL-159
Body repair ....................................................... BL-160
Body sealing .................................................... BL-168
Bose speaker amp. .............................................. AV-8
Brake booster .................................................... BR-17
Brake fluid level ................................................. MA-28
Brake hydraulic line ........................................... BR-12

IDX-6
ALPHABETICAL INDEX
Magnet clutch ............................... ATC-115, ATC-176
MAIN - Wiring diagram ...................... EC-145, AT-167
Main oil pump (Transfer) ..................... TF-154, TF-167
Mainshaft (Transfer) ........................... TF-154, TF-167
Maintenance (engine)Schedule 1 ....................... MA-7
Maintenance (engine)Schedule 2 ....................... MA-9
Major overhaul (Final drive) ............................. FFD-14
Major overhaul (Transfer) ................................ TF-146
Malfunction indicator lamp (MIL) ........................ EC-63
Map lamp .......................................................... LT-135
Mass air flow sensor (MAFS) ............. EC-171, EC-180
Meter ..................................................................... DI-5
METER - Wiring diagram .................................... DI-10
MIL data link connectors circuit ....................... EC-635
MIL/DL - Wiring diagram .................................. EC-635
MIRROR - Wiring diagram ................................ GW-93
Misfire .............................................................. EC-327
Mode door control linkage adjustment ............. ATC-66
Mode door motor ............................ ATC-64, ATC-161
Model variation ................................................... GI-47
Multiport fuel injection (MFI) system .................. EC-24
Multiport fuel injection precautions ....................... GI-6
Multi-remote control system - See Remote keyless entry
system ............................................................... BL-44
N
NATS - Wiring diagram .................................... BL-140
NAVI - Wiring diagram ....................................... AV-89
NAVI Control Unit .............................................. AV-86
Navigation system ............................................. AV-84
Neutral-4LO switch ............................................ TF-62
NONDTC - Wiring diagram .............................. AT-176
NVH troubleshooting (AX) ................................. FAX-4
NVH troubleshooting (EM) ................................ EM-10
NVH troubleshooting (Final drive) ..................... RFD-7
NVH troubleshooting (Propeller shaft) ................. PR-3
NVH troubleshooting (RAX) .............................. RAX-4
NVH troubleshooting (RSU) .............................. RSU-5
NVH troubleshooting (ST) .................................... PS-5
NVH troubleshooting (Transfer) ......................... TF-10
NVH troubleshooting (WT)NVH troubleshooting (WT) .
WT-4
NVIS (Nissan vehicle immobilizer system) precautions
GI-3
O
O2H2B1 - Wiring diagram ................................ EC-165
O2H2B2 - Wiring diagram ................................ EC-167
O2S2B1 - Wiring diagram ... EC-256, EC-267, EC-280
O2S2B2 - Wiring diagram ... EC-258, EC-269, EC-282
Oil cooler (engine) ............................................. LU-11
Oil filter ............................................................... LU-10
Oil filter (Transfer) ............................................ TF-143
Oil pan (engine) ................................................ EM-24
Oil pressure (engine) ........................................... LU-7
Oil pressure relief valve (engine) ......................... LU-5
Oil pump (engine) .............................................. LU-13
Oil seal replacement (engine) ........................... EM-60
Oil seal replacement (front of final drive) FFD-8, RFD-9
Oil seal replacement (side of final drive) ......... RFD-11
On board diagnostic system ............................. EC-48
ORVR (On-board Refueling Vapor Recovery) .. EC-39
Overheat ......................................................... EC-473
P
P/SCKT - Wiring diagram ................................. WW-53
Pantograph jack .................................................. GI-41
Park/Neutral position switch ............................ EC-465
Parking brake control ........................................... PB-4
PCV (positive crankcase ventilation) ................ EC-45
Periodic maintenance ......................................... MA-7
Personal lamp .................................................. LT-135
PGC/V - Wiring diagram ................... EC-375, EC-383
PHASE - Wiring diagram ................................ EC-349
PHONE - Wiring diagram ................................... AV-67
Pinion bearing preload diff. ............................. RFD-26
Piston pin inspection ......................................... EM-94
Piston ring inspection ........................................ EM-95
Piston to bore clearance ................................... EM-99
Planetary carrier (Transfer) ................. TF-149, TF-176
PNP/SW - Wiring diagram ... EC-467, AT-105, AT-106
POS - Wiring diagram ..................................... EC-342
POWER - Wiring diagram ................................... PG-6
Power door lock ................................................. BL-16
Power seat ......................................................... SE-83
Power steering fluid level .................................. MA-29
Power steering gear ........................................... PS-15
Power steering oil pump .................................... PS-21
Power steering pressure (PSP) sensor ........... EC-448
Power steering system bleeding .......................... PS-6
Power supply routing .......................................... PG-4
Power window .................................................. GW-15
PRE/SE - Wiring diagram ................. EC-407, EC-413
Precautions (General) ........................................... GI-4
Precautions in repairing high strength steel ..... BL-190
Pressure switch 1 ............................... AT-145, AT-159
Pressure switch 2 ............................................. AT-157
Pressure switch 3 ............................... AT-141, AT-161
Pressure switch 5 ............................... AT-149, AT-163
Pressure switch 6 ............................... AT-153, AT-165
Pressure test (A/T) ............................................. AT-52
Propeller shaft ........................................... PR-4, PR-8
Propeller shaft inspection .................................. MA-25
Propeller shaft on vehicle service ....................... PR-8
Propeller shaft vibration ............................ PR-4, PR-8
PS/SEN - Wiring diagram ............................... EC-449
R
R/VIEW - Wiring diagram .................................... DI-76
Radiator ............................................................ CO-14
Rear Audio Remote Control Unit ......................... AV-8
Rear axle ........................................................... RAX-5
Rear bumper ....................................................... EI-15
Rear case (Transfer) ........................... TF-148, TF-181

IP-6
SQUEAK AND RATTLE TROUBLE DIAGNOSIS
Revision: November 20092006 QX56
73982-9E000: 45 mm (1.77 in) thick, 50 x 50 mm (1.97 x 1.97 in)/73982-50Y00: 10 mm (0.39 in) thick, 50 x 50
mm (1.97 x 1.97 in)
INSULATOR (Light foam block)
80845-71L00: 30 mm (1.18 in) thick, 30 x 50 mm (1.18 x 1.97 in)
FELT CLOTH TAPE
Used to insulate where movement does not occur. Ideal for instrument panel applications.
68370-4B000: 15 x 25 mm (0.59 x 0.98 in) pad/68239-13E00: 5 mm (0.20 in) wide tape roll
The following materials, not found in the kit, can also be used to repair squeaks and rattles.
UHMW (TEFLON) TAPE
Insulates where slight movement is present. Ideal for instrument panel applications.
SILICONE GREASE
Used in place of UHMW tape that will be visible or not fit.
Note: Will only last a few months.
SILICONE SPRAY
Use when grease cannot be applied.
DUCT TAPE
Use to eliminate movement.
CONFIRM THE REPAIR
Confirm that the cause of a noise is repaired by test driving the vehicle. Operate the vehicle under the same
conditions as when the noise originally occurred. Refer to the notes on the Diagnostic Worksheet.
Generic Squeak and Rattle TroubleshootingEIS0062R
Refer to Table of Contents for specific component removal and installation information.
INSTRUMENT PANEL
Most incidents are caused by contact and movement between:
1. The cluster lid A and instrument panel
2. Acrylic lens and combination meter housing
3. Instrument panel to front pillar garnish
4. Instrument panel to windshield
5. Instrument panel mounting pins
6. Wiring harnesses behind the combination meter
7. A/C defroster duct and duct joint
These incidents can usually be located by tapping or moving the components to duplicate the noise or by
pressing on the components while driving to stop the noise. Most of these incidents can be repaired by apply-
ing felt cloth tape or silicone spray (in hard to reach areas). Urethane pads can be used to insulate wiring har-
ness.
CAUTION:
Do not use silicone spray to isolate a squeak or rattle. If you saturate the area with silicone, you will
not be able to recheck the repair.
CENTER CONSOLE
Components to pay attention to include:
1. Shifter assembly cover to finisher
2. A/C control unit and cluster lid C
3. Wiring harnesses behind audio and A/C control unit
The instrument panel repair and isolation procedures also apply to the center console.
DOORS
Pay attention to the:
1. Finisher and inner panel making a slapping noise
2. Inside handle escutcheon to door finisher
3. Wiring harnesses tapping
4. Door striker out of alignment causing a popping noise on starts and stops

INSTRUMENT PANEL ASSEMBLYIP-11
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Revision: November 2009 2006 QX56
REMOVAL
1. Remove center console. Refer to IP-17, "DISASSEMBLY AND ASSEMBLY" .
2. Remove instrument lower cover LH. Refer to IP-13, "
INSTRUMENT LOWER COVER LH" .
3. Remove steering column. Refer to PS-10, "
STEERING COLUMN" .
4. Remove glove box assembly. Refer to IP-14, "
Lower Instrument Panel RH and Glove Box" .
5. Remove front power socket LH. Refer to WW-54, "
Front Power Socket LH, Rear Cargo Power Socket" .
6. Remove front power socket RH. Refer to WW-54, "
Front Power Socket RH (For Cigarette Lighter), Con-
sole Power Socket" .
7. Remove combination meter. Refer to IP-14, "
Lower Instrument Panel RH and Glove Box" .
8. Remove audio unit. Refer to AV- 5 5 , "
AUDIO UNIT" .
9. Remove display unit. Refer to AV- 1 6 7 , "
DISPLAY CONTROL UNIT" .
10. Remove lower knee protector LH.
11. Remove GPS antenna. Refer to AV- 1 6 7 , "
Removal and Installation" .
12. Remove optical sensor. Refer to LT- 6 4 , "
Optical Sensor" .
13. Remove side ventilator assembly LH.
14. Remove side ventilator assembly RH.
15. Remove front pillar finisher. Refer to EI-36, "
FRONT PILLAR FINISHER" .
16. Remove passenger air bag module. Refer to SRS-50, "
FRONT PASSENGER AIR BAG MODULE"
17. Remove instrument panel.
18. Disconnect remaining instrument panel assembly electrical connectors.
INSTALLATION
Installation is in the reverse order of removal.
1. Steering member brackets2. Bracket assembly LH3. Steering member assembly
4. Combination meter cover 5. Defrost grille6. Instrument panel speaker LH
7. Instrument panel 8. Bin mat9. Side ventilator assembly LH
10. Instrument lower cover LH 11. Lower knee protector LH12. Steering column cover upper
13. Steering column cover lower 14. Center console lower cover LH 15. Combination meter
16. Audio unit bracket LH 17. Driver instrument stay18. Audio unit
19. Passenger instrument stay 20. Display assembly21. Switch assembly
22. Cluster lid A 23. Cluster lid D ventilator LH24. Front passenger air bag status light
25. Power socket LH and power socket RH 26. Clock 27. Cluster lid C
28. Front air control 29. Audio control30. Hazard switch
31. Cluster lid D ventilator RH 32. Cluster lid D33. Glove box door
34. Glove box assembly 35. Lower instrument panel RH 36. Glove box striker
37. Rubber bumpers 38. Glove box damper39. Audio unit bracket RH
40. Center console lower cover RH 41. Fuse block cover 42. Side ventilator assembly RH
43. Instrument panel bracket 44. Instrument panel speaker RH 45. Bracket assembly RH
46. Key cylinder escutcheon 47. Instrument lower cover RH

LT-158
ILLUMINATION
Revision: November 20092006 QX56

to combination meter terminal 8
With the ignition switch in the ON or START position, power is supplied

to ignition relay, located in the IPDM E/R, and

through 10A fuse (No. 59, located in the fuse and relay box)

to BCM terminal 38, and

through 10A fuse [No. 14, located in the fuse block (J/B)]

to combination meter terminal 24.
Ground is supplied

to BCM terminal 67 and

to combination meter terminal 17

through grounds M57, M61 and M79, and

to IPDM E/R terminals 38 and 59

through grounds E9, E15 and E24.
ILLUMINATION OPERATION BY LIGHTING SWITCH
With the lighting switch in the 1ST or 2ND position (or if the auto light system is activated), the BCM receives
input signal requesting the illumination lamps to illuminate. This input signal is communicated to the IPDM E/R
across the CAN communication lines. The CPU of the IPDM E/R controls the tail lamp relay coil, which, when
energized, directs power

through 10A fuse (No. 36, located in the IPDM E/R)

through IPDM E/R terminal 49

to illumination control switch terminal 1

to power liftgate switch terminal 3

to front room/map lamp assembly (console box illumination) terminal 7

to hazard switch terminal 3

to rear sonar system OFF switch terminal 3

to glove box lamp terminal 1

to display control unit terminal 14

to 4WD shift switch terminal 7 (with 4-wheel drive)

to front air control terminal 23

to rear power vent window switch terminal 5

to DVD player terminal 12 (with DVD entertainment system)

to NAVI control unit terminal 61

to pedal adjusting switch terminal 5

to electric brake (pre-wiring) terminal 4 (with trailer tow)

to front and rear heated seat switch LH and RH terminal 5

to A/T device terminal 11

to VDC OFF switch terminal 3

to tow mode switch terminal 3

to headlamp aiming switch terminal 3

to clock terminal 3, and

through 10A fuse (No. 37, located in the IPDM E/R)

through IPDM E/R terminal 57

to AV switch terminal 3

to audio unit terminal 8

to rear air control terminal 1 and

to rear audio remote control unit terminal 6.
Illumination is controlled

through illumination control switch terminal 2

to power liftgate switch terminal 4