INFINITI QX56 2009 Factory Service Manual

AV
DIAGNOSIS AND REPAIR WORKFLOWAV-5
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BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work FlowINFOID:0000000003776765
OVERALL SEQUENCE
• Reference 1··· Refer to AV-38, "AV CONTROL UNIT : CONSULT-III Function".
• Reference 2··· Refer to AV-155, "
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
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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-143, "
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-155, "
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.
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AV
INSPECTION AND ADJUSTMENTAV-7
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INSPECTION AND ADJUSTMENT
REAR VIEW MONITOR GUIDING LINE ADJUSTMENT
REAR VIEW MONITOR GUIDING LI NE ADJUSTMENT : DescriptionINFOID:0000000003776766
This mode is used to modify the side distance guidelines if they are dislocated from the rear view monitor
image, because of variations of body/camera mounting conditions.
REAR VIEW MONITOR GUIDING LINE ADJU STMENT : Special Repair Requirement
INFOID:0000000003776767
1. Create a correction line to modify the screen.
Draw lines on the rearward of the vehicle passing through the
following points: 200 mm (7.87 inch) from both sides of the vehi-
cle, and
• *1: 0.5 m (1.5 feet)
• *2: 1 m (3 feet)
• *3: 2 m (7 feet)
• *4: 3 m (10 feet)and from the rear end of the bumper
2. With the ignition switch OFF, connect CONSULT-III, then turn
ignition switch ON. Select “REARVIEW CAMERA”.
CAUTION:
Stop engine for safety when correcting side distance guide-
line.
3. Shift the A/T selector lever to R position.
4. Touch “SELCT GUIDELINE PATTERN” under “WORK SUPPORT” menu.
5. Touch “UP” or “DOWN”, and select the guide line, “PATTERN NO. 0” or “PATTERN NO. 1”, which is the
closest to the corrected line.
6. Touch “SAVE”, and confirm the guide line.
7. Touch “END”.
8. Touch “ADJ GUIDELINE POSITION” under the “WORK SUPPORT” menu.
9. Adjust the guide line touching “X UP”, “X DOWN”, “Y UP” or “Y DOWN” so that the corrected line can fit the guide line.
10. Touch “SAVE”, and confirm the guide line.
SKIA5637E
SKIA6103E
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AV-8
< BASIC INSPECTION >[AUDIO SYSTEM]
INSPECTION AND ADJUSTMENT
11. Touch “END” to finish correcting.
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AV
AUDIO SYSTEMAV-9
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FUNCTION DIAGNOSIS
AUDIO SYSTEM
System DiagramINFOID:0000000003776768
System DescriptionINFOID:0000000003776769
AUDIO SYSTEM
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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.
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AV
AUDIO SYSTEMAV-11
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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
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AV-12
< FUNCTION DIAGNOSIS >[AUDIO SYSTEM]
AUDIO SYSTEM
Component Description
INFOID:0000000003776771
10. Rear audio 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 view camera control unit B73
(located 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.
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AV
NAVIGATION SYSTEMAV-13
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NAVIGATION SYSTEM
System DiagramINFOID:0000000003776772
System DescriptionINFOID:0000000003776773
NOTE:
Refer to NAVI System Owner's Manual for system operation.
The navigation system periodically calculates the vehicl e's current position according to the following three
signals: Travel distance of the vehicle as determined by the vehicle speed sensor, turning angle of the vehicle
as determined by the gyroscope (angular velocity sensor), and the direction of vehicle travel as determined by
the GPS antenna (GPS information).
The current position of the vehicle is then identified by comparing the calculated vehicle position with map data
read from the map data, which is stored in the har d disk drive (HDD)(map-matching), and indicated on the
screen with a current-location mark.
By comparing the vehicle position detection results found by the
GPS and by map-matching, more accurate vehicle position data can
be used.
The current vehicle position will be calculated by detecting the dis-
tance the vehicle moved from the previous calculation point and its
direction.
TRAVEL DISTANCE
Travel distance calculations are based on the vehicle speed input signal. Therefore, the calculation may
become incorrect as the tires wear down. To prevent this, an automatic distance fine adjustment function has
been adopted.
TRAVEL DIRECTION
Change in the travel direction of the vehicle is calculated by a gyroscope (angular velocity sensor) and a GPS
antenna (GPS information). As the gyroscope and GP S antenna have both merit and demerit, input signals
from them are prioritized in each situation. However, this order of priority may change in accordance with more
detailed travel conditions so that the travel direction is detected more accurately.
ALNIA0424GB
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AV-14
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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
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ALNIA0839GB
SEL526V
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