2009 INFINITI QX56 steering

ADP SYSTEM SYMPTOMSADP-159
< SYMPTOM DIAGNOSIS >
C
DE
F
G H
I
K L
M A
B
ADP
N
O P
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

PRECAUTIONSADP-163
< PRECAUTION >
C
DE
F
G H
I
K L
M A
B
ADP
N
O P
5. When the repair work is completed, return the ignition switch to the ″LOCK ″ position before connecting
the battery cables. (At this time, the steering lock mechanism will engage.)
6. Perform a self-diagnosis check of al l control units using CONSULT-III.
Precaution for WorkINFOID:0000000003775660
 When removing or disassembling each component, be ca reful not to damage or deform it. If a component
may be subject to interference, be sure to protect it with a shop cloth.
 When removing (disengaging) components with a screwdriver or similar tool, be sure to wrap the component
with a shop cloth or vinyl tape to protect it.
 Protect the removed parts with a shop cloth and keep them.
 Replace a deformed or damaged clip.
 If a part is specified as a non-reusable part, always replace it with new one.
 Be sure to tighten bolts and nuts securely to the specified torque.
 After re-installation is completed, be sure to check that each part works normally.
 Follow the steps below to clean components.
- Water soluble foul: Dip a soft cloth into lukewarm water, and wring the water out of the cloth to wipe the fouled area.
Then rub with a soft and dry cloth.
- Oily foul: Dip a soft cloth into lukewarm water with mild detergent (concentration: within 2 to 3%), and wipe
the fouled area.
Then dip a cloth into fresh water, and wring the water out of the cloth to wipe the detergent off. Then rub with
a soft and dry cloth.
 Do not use organic solvent such as thinner, benzene, alcohol, or gasoline.
 For genuine leather seats, use a genuine leather seat cleaner.
Revision: December 20092009 QX56

ADP-170
< ON-VEHICLE REPAIR >
TILT SWITCH
TILT SWITCH
Removal and InstallationINFOID:0000000004055984
REMOVAL
1. Disconnect battery negative terminal.
2. Remove the instrument lower panel LH. Refer to IP-12, "Exploded View"
.
3. Remove steering column cover lower. Refer to IP-12, "Exploded View"
.
4. Disconnect tilt switch electrical connector.
5. Remove tilt switch from lower column cover.
INSTALLATION
Installation is in the reverse order of removal.
Revision: December 20092009 QX56

AV
AV-3
C
DE
F
G H
I
J
K L
M B
A
O P
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-4
STEERING SWITCH ........................................178
Removal and Installation ..................................... ..178
REAR AUDIO REMOTE CONTROL UNIT ......179
Removal and Installation ..................................... ..179
DVD ENTERTAINMENT SYSTEM ..................180
Removal and Installation ..................................... ..180
BOSE SPEAKER AMP ....................................181
Removal and Installation ..................................... ..181
AUDIO ANTENNA ...........................................182
Location of Antennas ........................................... ..182
Window Antenna Repair ........................................182
SATELLITE RADIO ANTENNA .......................184
Removal and Installation .......................................184
GPS ANTENNA .............................................. ..185
Removal and Installation .......................................185
MICROPHONE ............................................... ..186
Removal and Installation .......................................186
REAR VIEW CAMERA .....................................187
Removal and Installation .......................................187
REAR VIEW CAMERA CONTROL UNIT ....... ..188
Removal and Installation .......................................188
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]
C
D
E
F
G H
I
J
K L
M B A
O P
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