wheel INFINITI QX56 2009 Factory Owner's Manual

ADP-58
< COMPONENT DIAGNOSIS >
TILT SWITCH
Is the inspection result normal?
YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK ADP STEERING SWITCH GROUND CIRCUIT
Check continuity between ADP steering switch connector M16 termi-
nal 1 and ground.
Is the inspection result normal?
YES >> Check the condition of the harness and connector.
NO >> Replace or replace harness.
4. CHECK TILT SWITCH
Refer to ADP-58, "Component Inspection"
.
Is the inspection result normal?
YES >> GO TO 5
NO >> Replace ADP steering switch. Refer to ADP-170, "Removal and Installation"
.
5. CHECK INTERMITTENT INCIDENT
Refer to GI-38, "Intermittent Incident"
.
Is the inspection result normal?
YES >> Replace automatic drive posit ioner control unit. Refer to ADP-166, "Removal and Installation".
NO >> Repair or replace the malfunctioning part.
Component InspectionINFOID:0000000003775572
1. CHECK ADP STEERING WHEEL TILT SWITCH
Check continuity between ADP steering switch terminals as follows.
Is the inspection result normal?
YES >> Inspection End.
NO >> Replace ADP steering switch. Refer to ADP-170,
"Removal and Installation".
1 - Ground : Continuity should not exist.
17 - Ground : Continuity should not exist.
1 - Ground : Continuity should exist.
LIIA0490E
Terminals Condition Continuity
2 1ADP steering switch ON (UP operation) Yes
Other than above No
3 ADP steering switch ON (DOWN operation) Yes
Other than above No
LIIA1435E
Revision: December 20092009 QX56

ADP SYSTEM SYMPTOMSADP-159
< SYMPTOM DIAGNOSIS >
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SYMPTOM DIAGNOSIS
ADP SYSTEM SYMPTOMS
Symptom TableINFOID:0000000003775657
NOTE:
Always perform the “Basic Inspection” before perfo rming diagnosis in the following table. Refer to ADP-5,
"Work Flow".
SYMPTOM 1
SYMPTOM 2
SYMPTOM 3
Symptom Diagnosis procedure Reference
page
Manual functions (for specific part) do
not operate Sliding operation Check sliding switch.
ADP-49
Reclining operation Check reclining switch.ADP-51
Lifting operation (front) Check lifting switch (front).ADP-53
Lifting operation (rear) Check lifting switch (rear).ADP-55
Pedal operation1. Check pedal adjusting switch.
ADP-592. Check pedal adjusting sensor.ADP-84
Steering wheel tilt operation Check ADP steering switch ADP-57
Door mirror operation1. Changeover switch.
ADP-642. Mirror switchADP-66
All parts of seatCheck power seat switch ground cir-
cuit. ADP-69
Symptom Diagnosis procedure Reference
page
Memory functions (for specific part) do
not operate Sliding operation Check sliding sensor.
ADP-74
Reclining operation Check reclining sensor.ADP-76
Lifting operation (front) Check lifting sensor (front).ADP-78
Lifting operation (rear) Check lifting sensor (rear).ADP-80
Pedal operation Check pedal adjusting sensor.ADP-84
Steering wheel tilt operation Check tilt sensorADP-82
Door mirror operation Check door mirror sensor. Driver side:
ADP-86Passenger side:
ADP-88
Symptom Diagnosis procedure Reference
page
Memory functions and manual func-
tions (for specific part) do not operate Sliding operation Check sliding motor.
ADP-90
Reclining operation Check reclining motor.ADP-92
Lifting operation (front) Check lifting motor (front).ADP-94
Lifting operation (rear) Check lifting motor (rear).ADP-96
Pedal operation Check pedal adjusting motor.ADP-100
Steering wheel operation Check tilt motor ADP-98
Door mirror operation Check door mirror motor.ADP-102
Revision: December 20092009 QX56

ADP-162
< PRECAUTION >
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
INFOID:0000000005848468
The Supplemental Restraint System such as “A IR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severi ty of injury to the driver and front passenger for certain
types of collision. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS
system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front
air bag, depending on the severity of a collision and w hether the front occupants are belted or unbelted.
Information necessary to service the system safely is included in the SR and SB section of this Service Man-
ual.
WARNING:
• To avoid rendering the SRS inopera tive, which could increase the risk of personal injury or death in
the event of a collision which would result in air bag inflation, all maintenance must be performed by
an authorized NISS AN/INFINITI dealer.
 Improper maintenance, including in correct removal and installation of the SRS, can lead to personal
injury caused by unintent ional activation of the system. For re moval of Spiral Cable and Air Bag
Module, see the SR section.
 Do not use electrical test equipmen t on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identi fied by yellow and/or orange harnesses or har-
ness connectors.
PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS
WARNING:
 When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-
tion ON or engine running, DO NOT use air or electri c power tools or strike near the sensor(s) with a
hammer. Heavy vibration could activate the sensor( s) and deploy the air bag(s), possibly causing
serious injury.
 When using air or electric power tools or hammers , always switch the Ignition OFF, disconnect the
battery, and wait at least 3 minu tes before performing any service.
Precaution Necessary for Steering W heel Rotation After Battery Disconnect
INFOID:0000000005851835
NOTE:
 This Procedure is applied only to models with Intelli gent Key system and NATS (NISSAN ANTI-THEFT SYS-
TEM).
 Remove and install all control units after disconnecting both battery cables with the ignition knob in the
″LOCK ″ position.
 Always use CONSULT-III to perform self-diagnosis as a part of each function inspection after finishing work.
If DTC is detected, perform trouble diagnosis according to self-diagnostic results.
For models equipped with the Intelligent Key system and NATS, an electrically controlled steering lock mech-
anism is adopted on the key cylinder.
For this reason, if the battery is disconnected or if the battery is discharged, the steering wheel will lock and
steering wheel rotation will become impossible.
If steering wheel rotation is required when battery pow er is interrupted, follow the procedure below before
starting the repair operation.
OPERATION PROCEDURE
1. Connect both battery cables. NOTE:
Supply power using jumper cables if battery is discharged.
2. Use the Intelligent Key or mechanical key to turn the ignition switch to the ″ACC ″ position. At this time, the
steering lock will be released.
3. Disconnect both battery cables. The steering lock will remain released and the steering wheel can be
rotated.
4. Perform the necessary repair operation.
Revision: December 20092009 QX56

AV
AV-3
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Description ..........................................................
....
80
Diagnosis Procedure ...............................................80
RGB AREA (YS) SIGNAL CIRCUIT ..................81
Description .......................................................... ....81
Diagnosis Procedure ...............................................81
HORIZONTAL SYNCHRONIZING (HP) SIG-
NAL CIRCUIT ................................................. ....
82
Description .......................................................... ....82
Diagnosis Procedure ...............................................82
VERTICAL SYNCHRONIZING (VP) SIGNAL
CIRCUIT ......................................................... ....
83
Description .......................................................... ....83
Diagnosis Procedure ...............................................83
FRONT DOOR SPEAKER .................................84
Description .......................................................... ....84
Diagnosis Procedure ...............................................84
FRONT TWEETER .............................................87
Description .......................................................... ....87
Diagnosis Procedure ...............................................87
CENTER SPEAKER ...........................................90
Description .......................................................... ....90
Diagnosis Procedure ...............................................90
REAR DOOR SPEAKER ....................................92
Description .......................................................... ....92
Diagnosis Procedure ...............................................92
REAR DOOR TWEETER ...................................95
Description .......................................................... ....95
Diagnosis Procedure ...............................................95
BACK DOOR SPEAKER ...................................98
Description .......................................................... ....98
Diagnosis Procedure ...............................................98
SUBWOOFER ..................................................101
Description .......................................................... ..101
Diagnosis Procedure .............................................101
AMP ON SIGNAL CIRCUIT .............................104
Description .......................................................... ..104
Diagnosis Procedure .............................................104
STEERING SWITCH ........................................105
Description .......................................................... ..105
Diagnosis Procedure .............................................105
MICROPHONE SIGNAL CIRCUIT ...................107
Description .......................................................... ..107
Diagnosis Procedure .............................................107
ECU DIAGNOSIS .......................................109
AV CONTROL UNIT ....................................... ..109
Reference Value ................................................. ..109
Wiring Diagram .....................................................115
DTC Index ........................................................... ..143
DISPLAY UNIT ................................................145
Reference Value ....................................................145
BOSE SPEAKER AMP ...................................148
Reference Value ....................................................148
REAR VIEW CAMERA CONTROL UNIT .......151
Reference Value ....................................................151
DVD PLAYER ..................................................153
Reference Value ....................................................153
SYMPTOM DIAGNOSIS ............................155
MULTI AV SYSTEM ........................................155
Symptom Table ................................................... ..155
NORMAL OPERATING CONDITION .............157
Description .............................................................157
PRECAUTION ............................................165
PRECAUTIONS ...............................................165
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ..
165
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect .................................
165
PREPARATION .........................................167
PREPARATION ...............................................167
Commercial Service Tools ................................... ..167
ON-VEHICLE REPAIR ...............................168
AV CONTROL UNIT ........................................168
Removal and Installation ..................................... ..168
DISPLAY UNIT ................................................170
Removal and Installation .......................................170
FRONT TWEETER ..........................................171
Removal and Installation .......................................171
CENTER SPEAKER ........................................172
Removal and Installation .......................................172
FRONT DOOR SPEAKER ..............................173
Removal and Installation .......................................173
REAR DOOR SPEAKER ................................174
Removal and Installation .......................................174
BACK DOOR SPEAKER ................................175
Removal and Installation .......................................175
SUBWOOFER .................................................176
Removal and Installation .......................................176
DVD PLAYER ..................................................177
Removal and Installation .......................................177
Revision: December 20092009 QX56

AV-10
< FUNCTION DIAGNOSIS >[AUDIO SYSTEM]
AUDIO SYSTEM
The audio system consists of the following components
• AV control unit
• Display unit
• BOSE speaker amp.
• Window antenna
• Steering wheel audio control switches
• A/C and AV switch assembly
• Rear audio and remote control unit
• Front door speakers
• Front tweeters
• Center speaker
• Rear door speakers
• Rear door tweeters
• Back door speakers
• Subwoofer
When the audio system is on, radio signals are receiv
ed by the window antenna. The AV control unit then
sends audio signals to the BOSE speaker amp. The BO SE speaker amp. amplifies the audio signals before
sending them to the front door speakers, front tweeters, center speaker, rear door speakers, rear door tweet-
ers, back door speakers and the subwoofer.
Refer to Owner's Manual for audio system operating instructions.
SATELLITE RADIO SYSTEM
The satellite radio system consists of the following components
• Satellite antenna
• AV control unit
When the satellite radio system is on, radio signals are supplied to the AV contro l unit from the satellite
antenna. The AV control unit then sends audio signals to the BOSE speaker amp.
Refer to Owner's Manual for satellite radio system operating instructions.
SPEED SENSITIVE VOLUME SYSTEM
Volume level of this system goes up and down automatically in proportion to the vehicle speed. The control
level can be selected by the customer. Refer to Owner's Manual for operating instructions.
Revision: December 20092009 QX56

AV
AUDIO SYSTEMAV-11
< FUNCTION DIAGNOSIS > [AUDIO SYSTEM]
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Component Parts LocationINFOID:0000000003776770
1. Front tweeter LH M109 2. Steering wheel audio control switch-
es 3. AV control unit M42, M43, M44, M45,
M97, M124, M125
4. Display unit M93 5. Center speaker M1106. A/C and AV switch assembly M98
7. Front tweeter RH M111 8. Aux jack M1049. Compact Flash insert slot
ALNIA0845ZZ
Revision: December 20092009 QX56

AV-14
< FUNCTION DIAGNOSIS >[AUDIO SYSTEM]
NAVIGATION SYSTEM
MAP–MATCHING
Map–matching is a function that repositions the vehicle on the road
map when a new location is judged to be the most accurate. This is
done by comparing the current vehicle position, calculated by the
method described in the position detection principle, with the road
map data around the vehicle, read from the map data stored on the
HDD.
Therefore, the vehicle position may not be corrected after the vehicle
is driven over a certain distance or time in which GPS information is
hard to receive. In this case, the current-location mark on the display
must be corrected manually.
CAUTION:
The road map data is based on data stored on the HDD.
• In map-matching, alternative rout
es to reach the destination will be
shown and prioritized, after the road on which the vehicle is cur-
rently driven has been judged and the current-location mark has
been repositioned.
If there is an error in distance and/or direction, the alternative
routes will be shown in different order of priority, and the wrong
road can be avoided.
If two roads are running in parallel, they are of the same priority.
Therefore, the current-location mark may appear on either of them
alternately, depending on maneuvering of the steering wheel and
configuration of the road.
• Map-matching does not function correctly when the road on which the vehicle is driving is new and not recorded on the HDD, or when
the road pattern stored in the m ap data and the actual road pattern
are different due to repair.
When driving on a road not present in the map, the map-matching
function may find another road and position the current-location
mark on it. Then, when the correct road is detected, the current-
location mark may leap to it.
• Effective range for comparing the vehicle position and travel direc-
tion calculated by the distance and direction with the road data
read from the HDD is limited. Therefore, when there is an exces-
sive gap between the current vehicle position and the position on
the map, correction by map-matching is not possible.
GPS (GLOBAL POSITIONING SYSTEM)
GPS (Global Positioning System) has been developed and con-
trolled by the US Department of Defense. The system utilizes GPS
satellite (NAVSTAR), sending out radio waves while flying on an orbit
around the earth at the height of approx. 21,000 km (13,000 miles).
The GPS receiver calculates the vehicle's position in three dimen-
sions (latitude/longitude/altitude) according to the time lag of the
radio waves received from four or more GPS satellites (three-dimen-
sional positioning). If radio waves were received only from three
GPS satellites, the GPS receiver calculates the vehicle's position in
two dimensions (latitude/longitude), utilizing the altitude data calcu-
lated previously by using radio wa ves from four or more GPS satel-
lites (two-dimensional positioning).
Type Advantage Disadvantage
Gyroscope (angular velocity sensor) • Can detect the vehicle's turning angle quite
accurately. • Direction errors may accumulate when the ve-
hicle is driven for long distances without stop-
ping.
GPS antenna (GPS information) • Can detect the vehicle's travel direction
(North/South/East/West). • Correct direction cannot be detected when the
vehicle speed is low.
SEL685V
SEL686V
ALNIA0839GB
SEL526V
Revision: December 20092009 QX56

AV-16
< FUNCTION DIAGNOSIS >[AUDIO SYSTEM]
NAVIGATION SYSTEM
Component Parts Location
INFOID:0000000004109566
1. Front tweeter LH M109 2. Steering wheel audio control switch-
es 3. AV control unit M42, M43, M44, M45,
M97, M124, M125
4. Display unit M93 5. Center speaker M110 6. A/C and AV switch assembly M98
7. Front tweeter RH M111 8. Aux jack M1049. Compact Flash insert slot
ALNIA0845ZZ
Revision: December 20092009 QX56

AV
REAR VIEW MONITOR SYSTEMAV-19
< FUNCTION DIAGNOSIS > [AUDIO SYSTEM]
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Component Parts LocationINFOID:0000000004109567
1. Front tweeter LH M109 2. Steering wheel audio control switch-
es 3. AV control unit M42, M43, M44, M45,
M97, M124, M125
4. Display unit M93 5. Center speaker M1106. A/C and AV switch assembly M98
7. Front tweeter RH M111 8. Aux jack M1049. Compact Flash insert slot
ALNIA0845ZZ
Revision: December 20092009 QX56

AV
DVD PLAYERAV-21
< FUNCTION DIAGNOSIS > [AUDIO SYSTEM]
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DVD PLAYER
System DiagramINFOID:0000000003776780
System DescriptionINFOID:0000000003776781
The DVD entertainment system consists of the following components
• AV control unit
• DVD player
• Video monitor
• A/C and AV switch assembly
• Steering wheel AV control switches
• Rear audio remote control unit
• BOSE speaker amp.
• Front tweeters
• Front door speakers
• Center speaker
• Rear door tweeters
• Rear door speakers
• Back door speakers
• Subwoofer
When the DVD entertainment system is on, video signals are sent from the DVD player to the video monitor.
Audio signals are sent to the AV control unit. Audio signals can be directed through wireless infrared head-
phones or through the BOSE speaker amp. to the vehicle speakers. Refer to the Owner’s Manual for complete
DVD entertainment system operating instructions.
AWNIA1550GB
Revision: December 20092009 QX56