2007 INFINITI QX56 audio

NAVIGATION SYSTEM
AV-135
< SERVICE INFORMATION >
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3.CHECK POWER SUPPLY AND GROUND CIRCUIT
Check power supply and ground circuit for display control unit. Refer to AV- 111 , "
Power Supply and Ground
Circuit Inspection for Display Control Unit".
OK or NG
OK >> GO TO 4.
NG >> Check the malfunctioning parts.
4.CHECK COMMUNICATION LINE
Check communication line. Refer to AV-122, "
AV Communication Line Check (Between Display Control Unit
and AV Switch)".
OK or NG
OK >> Replace AV switch. Refer to AV-145, "Removal and Installation".
NG >> Replace display control unit. Refer to AV-145, "
Removal and Installation".
Audio Does Not WorkINFOID:0000000003533761
Refer to AV-29, "Trouble Diagnosis".
Navigation System Does Not ActivateINFOID:0000000003533762
1.POWER SUPPLY AND GROUND CIRCUIT CHECK
Check power supply and ground circuit for NAVI control unit. Refer to AV-110, "
Power Supply and Ground Cir-
cuit Inspection for NAVI Control Unit".
OK or NG
OK >> Replace NAVI control unit. Refer to AV-145, "Removal and Installation".
NG >> Check the malfunctioning parts.
Previous NAVI Conditions Are Not StoredINFOID:0000000003533763
1.CHECK BATTERY POWER
Check NAVI control unit battery power.
Refer to AV-110, "
Power Supply and Ground Circuit Inspection for NAVI Control Unit".
OK or NG
OK >> Replace NAVI control unit. Refer to AV-145, "Removal and Installation".
NG >> Check NAVI control unit battery power system harness.
Previous Vehicle Conditions Are Not StoredINFOID:0000000003533764
1.CHECK BATTERY POWER
Check display control unit battery power.
Refer to AV- 111 , "
Power Supply and Ground Circuit Inspection for Display Control Unit".
OK or NG
OK >> Replace display control unit. Refer to AV-145, "Removal and Installation".
NG >> Check display control unit battery power system harness.
Position of Current Location Mark Is Not CorrectINFOID:0000000003533765
1.SELF-DIAGNOSIS
Perform “Self-diagnosis mode” of the self-diagnosis function. Refer to AV-101, "
Self-Diagnosis Mode (NAVI)".
OK or NG
OK >> GO TO 2.
NG >> Check the malfunctioning parts.
2.ERROR HISTORY DIAGNOSIS
Was any error stored in AV-103, "
Confirmation/Adjustment Mode" of the "CONFIRMATION/ADJUSTMENT"
mode?

NAVIGATION SYSTEM
AV-137
< SERVICE INFORMATION >
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Correction = A/B
A: Distance shown on the screen
B: Actual distance
YES or NO
YES >> • If adjustment is insufficient, perform adjustment again.
• If any error is found in the map, please contact map data supplier. Refer to Navigation System
Owner's Manual for contact information.
• Replace NAVI control unit. Refer to AV-145, "
Removal and Installation".
NO >> Limit of the location detection capacity of the navigation system.
Example of Symptom Judged Not MalfunctionINFOID:0000000003533768
BASIC OPERATION
VEHICLE MARK
Symptom Cause Remedy
No image is shown. Display brightness adjustment is set fully to DARK
side.Adjust the display brightness.
No guide sound is heard.
Audio guide volume is too low or
too high.Volume control is set to OFF, MIN or MAX. Adjust the audio guide volume.
Audio guidance is not available while the vehicle is
driving on a dark pink route.System is not malfunctioning.
Screen is too dark.
Motion of the image is too slow.Temperature inside the vehicle is low. Wait until the temperature inside the vehicle
reaches the proper temperature.
Small black or bright spots appear
on the screen.Symptom peculiar to a liquid crystal display (dis-
play unit).System is not malfunction.
Symptom Cause Remedy
Map screen and BIRDVIEW™
Name of the place varies with the
screen.Some thinning of the character data is done to pre-
vent the display becoming to complex. In some
cases and in some locations, the display contents
may differ.
The same place name, street name, etc. may not
be displayed every time on account of the data
processing.System is not malfunctioning.
Vehicle mark is not positioned cor-
rectly.Vehicle is transferred by ferry or by towing after its
ignition switch is turned to OFF.Drive the vehicle for a while in the GPS sat-
ellite signal receiving condition.
Screen will not switch to nighttime
mode after the lighting switch is
turned ON.The daytime screen is selected by the “SWITCH
SCREENS” when the last time the screen dim-
ming setting is done.
Switching between daytime/nighttime screen may
be inhibited by the automatic illumination adjust-
ment function.Perform screen dimming and select the
nighttime screen by “SWITCH SCREENS”.
Map screen will not scroll in accor-
dance with the vehicle travel.Current location is not displayed. Press “MAP” button to display the current lo-
cation.
Vehicle mark will not be shown. Current location is not displayed. Press “MAP” button to display the current lo-
cation.
Accuracy indicator (GPS satellite
mark) on the map screen stays
gray.GPS satellite signal is intercepted because the ve-
hicle is in or behind a building.Move the vehicle out to an open space.
GPS satellite signal cannot be received because
an obstacle is placed on top of the instrument pan-
el.Do not place anything in the center on top of
the display.
GPS satellites are not visible from current location. Wait until GPS satellites are visible by mov-
ing the vehicle.

NAVIGATION SYSTEM
AV-147
< SERVICE INFORMATION >
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6. Remove GPS antenna.
Installation
Installation is in the reverse order of removal.
NAVI CONTROL UNIT
Removal
CAUTION:
To avoid damage, eject map DVD-ROM before removing the NAVI control unit.
1. Disconnect negative battery cable.
2. Remove front passenger seat. Refer to SE-83
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3. Remove NAVI control unit kick shield screws (A).
4. Remove NAVI control unit kick shield (1).
5. Disconnect NAVI control unit connectors.
6. Remove NAVI control unit screws (B).
7. Remove NAVI control unit (2).
Installation
Installation is in the reverse order of removal.
STEERING WHEEL AUDIO CONTROL SWITCHES
Refer to AV-46, "Removal and Installation".
WKIA1508E
WKIA4354E

SQUEAK AND RATTLE TROUBLE DIAGNOSIS
BL-7
< SERVICE INFORMATION >
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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 TroubleshootingINFOID:0000000003532889
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.
TRUNK
Trunk noises are often caused by a loose jack or loose items put into the trunk by the owner.
In addition look for:
1. Trunk lid bumpers out of adjustment
2. Trunk lid striker out of adjustment
3. The trunk lid torsion bars knocking together
4. A loose license plate or bracket

BL-84
< SERVICE INFORMATION >
AUTOMATIC BACK DOOR SYSTEM
Warning Chime Active Conditions
The warning chime uses two types of audio warnings, a friendly chime and a warning chime. The friendly
chime consists of dings lasting 0.66 seconds each immediately followed by the next ding. The warning chime
consists of beeps lasting 0.33 seconds with a pause of 0.33 seconds between each beep.
Reverse Conditions
Description Operation Control
Back door close switch turned to CANCELWarning chime active
→ Shift to manual mode after full open or
close operation is complete
(Recovery to power mode when main
switch turned OFF or door fully closed)→ Shift to manual mode
A/T selector lever P or N position with igni-
tion switch ONWarning chime active and one-way opera-
tion continuous
(Warning chime inactive and door fully open
or fully closed or operating conditions re-
covered)Full open: power close operation allowed
Full close: operating conditions not met →
no power open function.
Voltage drop 11 - 9VOne-way operation continued (equivalent
to the case of starting voltage ← 11V for
handle operation with warning chime ac-
tive)Not allowed
Voltage drop less than 9V
(Microcomputer reset voltage - clutch hold
voltage)• Motor stopped
• Clutch may slip
• Control not possible because microcom-
puter being resetControl not possible because microcomput-
er being reset
Operation status Operation or conditions Warning chime pattern
When auto operation startsPower liftgate switch operation
Friendly chime
2 seconds, 3 dings Remote keyless entry operation
Back door handle switch operation
Back door close switch operation
When reverse operation startsWhen reverse request is detected from
power liftgate switch, remote keyless
entry or back door close switchFriendly chime
1.3 seconds, 2 dings
When obstacle is detectedWarning chime
2 seconds, 3 beeps
Operating at low voltage While opening or closing Warning chime
2 seconds, 3 beeps
A/T selector lever not in P positionBack door close operationFriendly chime
Continuously dings
Back door open operationWarning chime
Continuously beeps
(until close operation is started)
Type Overload reverse
Operation covered Both directions
Detection methodOperation speed and motor current change direction
Pinch strips during back door close operation
Non-reversed area• For about 0.5 seconds immediately after drive motor operation
starts
• Between full open and approx. 7° from full open
• Closure operation area (half switch - close switch)
Number of times reverse allowedOne reversal is allowed (if a second obstacle is detected during a
power open or close operation, the door reverts to manual mode).

EI-6
< SERVICE INFORMATION >
SQUEAK AND RATTLE TROUBLE DIAGNOSIS
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 TroubleshootingINFOID:0000000003533119
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 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.
TRUNK
Trunk noises are often caused by a loose jack or loose items put into the trunk by the owner.
In addition look for:
1. Trunk lid bumpers out of adjustment
2. Trunk lid striker out of adjustment
3. The trunk lid torsion bars knocking together
4. A loose license plate or bracket

EI-38
< SERVICE INFORMATION >
HEADLINING
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-34
.
3. Remove luggage floor trim. Refer to EI-39
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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.
10. Cap RH 11. Sunvisor assembly RH 12. 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 finisher 18. Rear storage bin
19. Air vent 20. Lamp assembly 21. Plastic clip
22. Headlining (with sunroof) 23. Rear lamp lens 24. Rear lamp
25. Rear roof finisher 26. Plastic clip 27. Metal clip
⇐Vehicle front

SQUEAK AND RATTLE TROUBLE DIAGNOSIS
GW-7
< SERVICE INFORMATION >
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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 TroubleshootingINFOID:0000000003533020
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.
TRUNK
Trunk noises are often caused by a loose jack or loose items put into the trunk by the owner.
In addition look for:
1. Trunk lid bumpers out of adjustment
2. Trunk lid striker out of adjustment
3. The trunk lid torsion bars knocking together
4. A loose license plate or bracket