display INFINITI QX56 2008 Factory User Guide

ADP-154
< ECU DIAGNOSIS >
BCM (BODY CONTROL MODULE)
CONSULT displayFail-safeIntelligent Key
warning lamp ON Tire pressure
monitor warning lamp ON Reference page
No DTC is detected.
further testing
may be required. ————
U1000: CAN COMM CIRCUIT ———BCS-30
U1010: CONTROL UNIT (CAN) ———BCS-31
B2190: NATS ANTENNA AMP ———SEC-29
B2191: DIFFERENCE OF KEY ———SEC-32
B2192: ID DISCORD BCM-ECM ———SEC-33
B2193: CHAIN OF BCM-ECM ———SEC-35
B2552: INTELLIGENT KEY ———SEC-37
B2590: NATS MALFUNCTION ———SEC-38
C1704: LOW PRESSURE FL ———WT-31
C1705: LOW PRESSURE FR ———WT-31
C1706: LOW PRESSURE RR ———WT-31
C1707: LOW PRESSURE RL ———WT-31
C1708: [NO DATA] FL ———WT-14
C1709: [NO DATA] FR ———WT-14
C1710: [NO DATA] RR ———WT-14
C1711: [NO DATA] RL ———WT-14
C1712: [CHECKSUM ERR] FL ———WT-16
C1713: [CHECKSUM ERR] FR ———WT-16
C1714: [CHECKSUM ERR] RR ———WT-16
C1715: [CHECKSUM ERR] RL ———WT-16
C1716: [PRESSDATA ERR] FL ———WT-18
C1717: [PRESSDATA ERR] FR ———WT-18
C1718: [PRESSDATA ERR] RR ———WT-18
C1719: [PRESSDATA ERR] RL ———WT-18
C1720: [CODE ERR] FL ———WT-16
C1721: [CODE ERR] FR ———WT-16
C1722: [CODE ERR] RR ———WT-16
C1723: [CODE ERR] RL ———WT-16
C1724: [BATT VOLT LOW] FL ———WT-16
C1725: [BATT VOLT LOW] FR ———WT-16
C1726: [BATT VOLT LOW] RR ———WT-16
C1727: [BATT VOLT LOW] RL ———WT-16
C1729: VHCL SPEED SIG ERR ———WT-19
C1735: IGNITION SIGNAL ———WT-20
Revision: March 2010 2008 QX56

AV-2
U1206 GPS RAM ...............................................42
Description ........................................................... ...42
DTC Logic ...............................................................42
U1207 GPS RTC ................................................43
Description ........................................................... ...43
DTC Logic ...............................................................43
U1216 AV CONTROL UNIT ...............................44
Description ........................................................... ...44
DTC Logic ...............................................................44
U1217 AV CONTROL UNIT ...............................45
Description ........................................................... ...45
DTC Logic ...............................................................45
U1218 AV CONTROL UNIT ...............................46
Description ........................................................... ...46
DTC Logic ...............................................................46
U1219 AV CONTROL UNIT ...............................47
Description ........................................................... ...47
DTC Logic ...............................................................47
U121A AV CONTROL UNIT ..............................48
Description ........................................................... ...48
DTC Logic ...............................................................48
U121B AV CONTROL UNIT ..............................49
Description ........................................................... ...49
DTC Logic ...............................................................49
U121C AV CONTROL UNIT ..............................50
Description ........................................................... ...50
DTC Logic ...............................................................50
U121D AV CONTROL UNIT ..............................51
Description ........................................................... ...51
DTC Logic ...............................................................51
U121E AV CONTROL UNIT ..............................52
Description ........................................................... ...52
DTC Logic ...............................................................52
U121F AV CONTROL UNIT ..............................53
Description ........................................................... ...53
DTC Logic ...............................................................53
Diagnosis Procedure ..............................................53
U1220 AV CONTROL UNIT ...............................54
Description ........................................................... ...54
DTC Logic ...............................................................54
U1243 DISPLAY UNIT .......................................55
Description ........................................................... ...55
DTC Logic ...............................................................55
Diagnosis Procedure ..............................................55
U1244 GPS ANTENNA ......................................57
Description ........................................................... ...57
DTC Logic ...............................................................57
Diagnosis Procedure ..............................................57
U1250 CAMERA CONTROL UNIT ....................58
Description ........................................................... ...58
DTC Logic ...............................................................58
Diagnosis Procedure ...............................................58
U1258 SATELLITE RADIO ANTENNA .............60
Description ........................................................... ...60
DTC Logic ...............................................................60
Diagnosis Procedure ...............................................60
U1300 AV COMM CIRCUIT ............................ ...61
Description ........................................................... ...61
U1310 AV CONTROL UNIT ..............................62
Description ........................................................... ...62
DTC Logic ...............................................................62
POWER SUPPLY AND GROUND CIRCUIT .....63
AV CONTROL UNIT ............................................... ...63
AV CONTROL UNIT : Diagnosis Procedure ...........63
DISPLAY UNIT ....................................................... ...64
DISPLAY UNIT : Diagnosis Procedure ...................64
A/C AND AV SWITCH ASSEMBLY ..........................65
A/C AND AV SWITCH ASSEMBLY : Diagnosis
Procedure ............................................................ ...
65
BOSE SPEAKER AMP .............................................66
BOSE SPEAKER AMP : Diagnosis Procedure .... ...66
WOOFER ................................................................ ...66
WOOFER : Diagnosis Procedure ...........................66
REAR VIEW CAMERA CONTROL UNIT ............... ...67
REAR VIEW CAMERA CONTROL UNIT : Diagno-
sis Procedure ..........................................................
67
REAR VIEW CAMERA ........................................... ...68
REAR VIEW CAMERA : Diagnosis Procedure .......68
DVD PLAYER ......................................................... ...69
DVD PLAYER : Diagnosis Procedure .....................69
VIDEO MONITOR ................................................... ...70
VIDEO MONITOR : Diagnosis Procedure ..............70
MICROPHONE ....................................................... ...71
MICROPHONE : Diagnosis Procedure ...................71
RGB (R: RED) SIGNAL CIRCUIT .....................73
Description ........................................................... ...73
Diagnosis Procedure ...............................................73
RGB (G: GREEN) SIGNAL CIRCUIT ................74
Description ........................................................... ...74
Diagnosis Procedure ...............................................74
RGB (B: BLUE) SIGNAL CIRCUIT ...................75
Description ........................................................... ...75
Diagnosis Procedure ...............................................75
RGB SYNCHRONIZING SIGNAL CIRCUIT ......76
Revision: March 2010 2008 QX56

AV
AV-3
C
DE
F
G H
I
J
K L
M B
A
O P
Description ..........................................................
....
76
Diagnosis Procedure ...............................................76
RGB AREA (YS) SIGNAL CIRCUIT ..................77
Description .......................................................... ....77
Diagnosis Procedure ...............................................77
HORIZONTAL SYNCHRONIZING (HP) SIG-
NAL CIRCUIT ................................................. ....
78
Description .......................................................... ....78
Diagnosis Procedure ...............................................78
VERTICAL SYNCHRONIZING (VP) SIGNAL
CIRCUIT ......................................................... ....
79
Description .......................................................... ....79
Diagnosis Procedure ...............................................79
FRONT DOOR SPEAKER .................................80
Description .......................................................... ....80
Diagnosis Procedure ...............................................80
FRONT TWEETER .............................................83
Description .......................................................... ....83
Diagnosis Procedure ...............................................83
CENTER SPEAKER ...........................................86
Description .......................................................... ....86
Diagnosis Procedure ...............................................86
REAR DOOR SPEAKER ....................................88
Description .......................................................... ....88
Diagnosis Procedure ...............................................88
REAR DOOR TWEETER ...................................91
Description .......................................................... ....91
Diagnosis Procedure ...............................................91
BACK DOOR SPEAKER ...................................94
Description .......................................................... ....94
Diagnosis Procedure ...............................................94
SUBWOOFER ....................................................97
Description .......................................................... ....97
Diagnosis Procedure ...............................................97
AMP ON SIGNAL CIRCUIT .............................100
Description .......................................................... ..100
Diagnosis Procedure .............................................100
STEERING SWITCH ........................................101
Description .......................................................... ..101
Diagnosis Procedure .............................................101
MICROPHONE SIGNAL CIRCUIT ...................103
Description .......................................................... ..103
Diagnosis Procedure .............................................103
ECU DIAGNOSIS .......................................105
AV CONTROL UNIT ....................................... ..105
Reference Value ................................................. ..105
Wiring Diagram .....................................................111
DTC Index ........................................................... ..139
DISPLAY UNIT ................................................141
Reference Value ....................................................141
BOSE SPEAKER AMP ...................................144
Reference Value ....................................................144
REAR VIEW CAMERA CONTROL UNIT .......147
Reference Value ....................................................147
DVD PLAYER ..................................................149
Reference Value ....................................................149
SYMPTOM DIAGNOSIS ............................151
MULTI AV SYSTEM ........................................151
Symptom Table ................................................... ..151
NORMAL OPERATING CONDITION .............153
Description .............................................................153
PRECAUTION ............................................161
PRECAUTIONS ...............................................161
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ..
161
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect .................................
161
PREPARATION .........................................163
PREPARATION ...............................................163
Commercial Service Tools ................................... ..163
ON-VEHICLE REPAIR ...............................164
AV CONTROL UNIT ........................................164
Removal and Installation ..................................... ..164
DISPLAY UNIT ................................................166
Removal and Installation .......................................166
FRONT TWEETER ..........................................167
Removal and Installation .......................................167
CENTER SPEAKER ........................................168
Removal and Installation .......................................168
FRONT DOOR SPEAKER ..............................169
Removal and Installation .......................................169
REAR DOOR SPEAKER ................................170
Removal and Installation .......................................170
BACK DOOR SPEAKER ................................171
Removal and Installation .......................................171
SUBWOOFER .................................................172
Removal and Installation .......................................172
DVD PLAYER ..................................................173
Removal and Installation .......................................173
Revision: March 2010 2008 QX56

AV
DIAGNOSIS AND REPAIR WORKFLOWAV-5
< BASIC INSPECTION > [AUDIO SYSTEM]
C
D
E
F
G H
I
J
K L
M B A
O P
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work FlowINFOID:0000000001696015
OVERALL SEQUENCE
• Reference 1··· Refer to AV-33, "AV CONTROL UNIT : CONSULT-III Function".
• Reference 2··· Refer to AV-151, "
Symptom Table".
DETAILED FLOW
1.CHECK SYMPTOM
Check the malfunction symptoms by performing the following items.
• Interview the customer to obtain the malfunction information (conditions and environment when the malfunc-
tion occurred).
• Check the symptom.
>> GO TO 2
2.SELF-DIAGNOSIS (CONSULT-III)
1. Connect CONSULT-III and perform “SELF-DIAGNOSIS” for “MULTI AV”. NOTE:
Skip to step 4 of the diagnosis proc edure if “MULTI AV” is not displayed.
2. Check if any DTC No. is displayed in the self-diagnosis results.
AWNIA0030GB
Revision: March 2010 2008 QX56

AV-6
< BASIC INSPECTION >[AUDIO SYSTEM]
DIAGNOSIS AND REPAIR WORKFLOW
Is any DTC No. displayed?
YES >> GO TO 3
NO >> GO TO 4
3.CHECK SELF-DIAGNOSIS RESULTS (CONSULT-III)
1. Check the DTC No. indicated in the self-diagnosis results.
2. Perform the relevant diagnosis referring to the DTC No. list. Refer to AV-139, "
DTC Index".
NOTE:
Start with the diagnosis for the CAN communication system if “CAN COMM CIRCUIT [U1000] or CONTROL
UNIT (CAN) [U1010]” is displayed.
>> GO TO 5
4.PERFORM DIAGNOSIS BY SYMPTOM
Perform the relevant diagnosis referring to the diagnosis chart by symptom. Refer to AV-151, "
Symptom
Table".
>> GO TO 5
5.REPAIR OR REPLACE MALFUNCTIONING PARTS
Repair or replace the identified malfunctioning parts.
NOTE:
Erase the stored self-diagnosis results after repairing or replacing the relevant components if any DTC No. has
been indicated in the self-diagnosis results.
>> GO TO 6
6.CHECK AFTER REPAIR
1. Perform self-diagnosis for “MULTI AV” with CONSULT- III after repairing or replacing the malfunctioning
parts.
2. Check if any DTC No. is displayed in the self-diagnosis results.
Is any DTC No. displayed?
YES >> GO TO 3
NO >> GO TO 7
7.FINAL CHECK
Perform the operation check to confirm that the malf unction symptom is solved or that any other symptoms
are present.
Are any symptoms present?
YES >> GO TO 4
NO >> Inspection End.
Revision: March 2010 2008 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: March 2010 2008 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:0000000001696020
1. Front tweeter LH M109 2. Steering wheel audio control switch-
es 3. AV control unit M42, M43, M44, M45,
M46, 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: March 2010 2008 QX56

AV-12
< FUNCTION DIAGNOSIS >[AUDIO SYSTEM]
AUDIO SYSTEM
Component Description
INFOID:0000000001696021
10. Rear audio and remote control unit R204 11. Microphone R109 12. Front door speaker
LH D12
RH D112
13. Rear door tweeter LH D208
RH D308 14. Rear door speaker
LH D207
RH D307 15. Back door speaker
LH D518
RH D716
16. Subwoofer B72 (under driver’s seat) 17. BOSE speaker amp M112, M113 (view behind instrument panel above
accelerator pedal)18. Rear camera control unit B73 (locat-
ed behind luggage finisher LHl)
19. Rear view camera D504
Part name Description
AV control unit Controls audio system, NAVI functions and satellite radio system functions
Display unit • Touch screen controls all audio and A/C operations
• Displays all audio and climate control related information
BOSE speaker amp. Receives power (amp ON) and audio signals from AV control unit and out-
puts audio signals to each speaker.
Steering switches • Audio operation can be operated
• Steering switch signal is output to AV control unit
Front door speakers • Outputs audio signal from BOSE speaker amp.
• Outputs high, mid and low range sounds
Front tweeters • Outputs audio signal from BOSE speaker amp.
• Outputs high range sounds
Center speaker • Outputs audio signal from BOSE speaker amp.
• Outputs high range sounds
Rear door speakers • Outputs audio signal from BOSE speaker amp.
• Outputs high, mid and low range sounds
Rear door tweeters • Outputs audio signal from BOSE speaker amp.
• Outputs high range sounds
Back door speakers • Outputs audio signal from BOSE speaker amp.
• Outputs high, mid and low range sounds
Subwoofer • Outputs audio signal from BOSE speaker amp.
• Outputs low range sounds
Satellite antenna Audio signal (satellite radio) is received and output to AV control unit.
Revision: March 2010 2008 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: March 2010 2008 QX56

AV-16
< FUNCTION DIAGNOSIS >[AUDIO SYSTEM]
REAR VIEW MONITOR SYSTEM
REAR VIEW MONITOR SYSTEM
System DiagramINFOID:0000000001696026
System DescriptionINFOID:0000000001696027
When the selector is in the R position, the display shows
a view to the rear of the vehicle. Lines which indicate
the vehicle clearance and distances are also displayed.
AV COMMUNICATION LINE
The rear view camera control unit is connected to t he audio control unit using an AV communication line. This
line is used to transmit and receive data.
Component Parts LocationINFOID:0000000001696028
Refer to AV- 11 , "Component Parts Location".
Component DescriptionINFOID:0000000001696029
AWNIA0132GB
Part name Description
AV control unit Camera image signal is sent from rear view camera control unit
Rear view camera control unit • Receives reverse signal from back-up lamp relay
• Receives rear view camera image signal
• Sends camera ON signal to rear view camera
• Sends image signal to AV control unit
Rear view camera • Receives camera ON signal from rear view camera control unit
• Sends image signal to rear view camera control unit
Revision: March 2010
2008 QX56