2011 INFINITI QX56 steering

AV
DIAGNOSIS SYSTEM (AV CONTROL UNIT)AV-29
< SYSTEM DESCRIPTION >
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METHOD OF STARTING
1. Start the engine.
2. Turn the audio system OFF.
3. While pressing the “SETTING” button, turn the volume control dial clockwise or counterclockwise for 40 clicks or more. (When
the self-diagnosis mode is start ed, the trouble diagnosis initial
screen is displayed.)
 Shifting from current screen to previous screen is performed
by pressing “BACK” button.
Confirmation/
Adjustment Display Diagnosis
The following check functions are available: color tone check by color
bar display and white display, light and shade check by gray scale dis-
play and touch panel calibration response check.
Vehicle Signals Diagnosis of signals can be performed for vehicle speed, parking brake,
lights, ignition, reverse, side view switch and room lamp.
Speaker Test The connection of a speaker can be confirmed by test tone.
Navigation Steering Angle Ad-
justment
When there is a difference between the actual turning angle and the ve-
hicle mark turning angle, it can be adjusted.
Speed Calibration When there is a difference between the current location mark and the ac-
tual location, it can be adjusted.
Error History The system malfunction and the frequency when occurring in the past
are displayed. When the malfunctioning item is selected, the time and
place that the selected malfunction last occurred are displayed.
Synchronizer FES Clock –
Vehicle CAN Diagnosis The transmitting/receiving of CAN communication can be monitored.
AV COMM Diagnosis The communication condition of each unit of Multi AV system can be
monitored.
Handsfree Phone The received volume adjustment of hands-free phone, microphone
speaker check, and erase memory can be performed.
Camera It can perform the confirmation of a signal connection to around view
monitor control unit, the calibration
of each camera, Correct Draw Line
of Camera Image, and Fine Tuning of Birds-Eye View.
XM XM NaviTrffic Change Channel
 Any necessary channels required to receive traffic information from the satellite radio system can be set.
Change Application ID
 Any application ID'-s required to receive traffic information from the satellite radio system can be set.
XM NavWeather
XM CGS
Diag
Delete Unit Connection Log Erase the connection history of unit and error history.
Initialize Settings Initializes the AV control unit memory.
Version Information Version information of the AV control unit is displayed. Mode Description
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AV
DIAGNOSIS SYSTEM (AV CONTROL UNIT)AV-33
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A comparison check can be made of each actual vehicle signal and
the signals recognized by the system.
Sp ea ke r Tes t
Select “SPEAKER DIAGNOSIS” to display the Speaker Diagnosis
screen. Press “Start” to generate a test tone in a speaker. Press
“Start” to generate a test tone in the next speaker. Press “Stop” to
stop the test tones.
Navigation
STEERING ANGLE ADJUSTMENT
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Diagnosis item Display Vehicle status Remarks
Vehicle speed ON Vehicle speed >= 8 km/h (5 MPH)
Changes in indication may be delayed. This is normal.
OFF Vehicle speed < 8 km/h (5 MPH)
Parking brake ON Parking brake is applied.
OFF Parking brake is released.
Lights ON
Block the light from the auto light
optical sensor when the lighting
switch is 1st or 2nd.
—
OFF Either of the following conditions.
 Lighting switch is OFF
 Expose the auto light optical sen-
sor to light when the lighting
switch is 1st or 2nd.
Ignition ON Ignition switch is ON.
—
OFF Ignition switch is in ACC position.
Reverse ON Selector lever is in “R” position.
Changes in indication may be delayed. This is normal.
OFF Selector lever is in other than “R”
position.
Side view Switch OFF — This item is displayed, but cannot be monitored.
Room Lamp OFF — This item is displayed, but cannot be monitored.
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Revision: 2010 May2011 QX56

AV-34
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
The steering angle output value detected with the gyroscope is
adjusted.
SPEED CALIBRATION
During normal driving, distance error caused by tire wear and tire
pressure change is automatically adjusted for by the automatic dis-
tance correction function. This function, on the other hand, is for
immediate adjustment, in cases such as driving with tire chain fitted
on tires.
Error History
The self-diagnosis results are judged depending on whether any error occurs from when “Self-diagnosis” is
selected until the self-diagnosis results are displayed.
However, the diagnosis results are judged normal if an error has occurred before the ignition switch is turned
ON and then no error has occurred until the self-diagnosis start. Check the “Error Record” to detect any error
that may have occurred before the self-di agnosis start because of this situation.
The error record displays the time and place of the most recent occurrence of that error. However, take note of
the following points.
 If there is a malfunction with the GPS antenna circuit board in the AV control unit, the correct date and time
of occurrence may not be able to be displayed.
 Place of the error occurrence is represented by the posit ion of the current location mark at the time an error
occurred. If current location mark has deviated from t he correct position, then the place of the error occur-
rence cannot be located correctly.
 The frequency of occurrence is displayed in a count up manner. The actual count up method differs depend- ing on the error item.
Count up method A
 The counter resets to 0 if an error occurs when igniti on switch is turned ON. The counter increases by 1 if
the condition is normal at a next ignition ON cycle.
 The counter upper limit is 39. Any counts exceeding 39 are ignored.“ The counter can be reset (no error
record display) with the “Delete log” switch or CONSULT-III.
Count up method B
 The counter increases by 1 if an error occurs when i gnition switch is ON. The counter will not decrease even
if the condition is normal at the next ignition ON cycle.
 The counter upper limit is 50. Any counts exceeding 50 are ignored. “ The counter can be reset (no error
record display) with the “Delete log” switch or CONSULT-III.
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Display type of occur-
rence frequency Error history display item
Count up method A CAN communication line, control unit (CAN), AV communication line, control unit (AV)
Count up method B Other than the above
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AV-36
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
Unfinished configurationThe writing of configuration data is incom-
plete.Write configuration data with CONSULT-III.
USB Controller Communication Error USB connection malfunction is detected. Check that the connection to the USB con-
nector is normal.
DVD Mechanism Communication Error AV control unit malfunction is detected.  If DVD can be played, then there is a
possibility of the detection of a temporary
malfunction.
 Replace the AV control unit if the mal- function occurs constantly.
Refer to AV- 2 1 2 , "
Removal and Installa-
tion".
Steer. Angle Sensor Calibration Predictive course line center position ad-
justment of the steering angle sensor is in-
complete.Adjust the predictive course line center po-
sition of the steering angle sensor.
Refer to
AV- 3 9 , "
CONSULT-III Function".
Front Display Connection Error When either one of the following items are
detected:
 front display unit power supply and
ground circuits are malfunctioning.
 Serial communication circuits between AV control unit and front display unit are
malfunctioning.  Front display unit power supply and
ground circuits.
 Serial communication circuits between AV control unit and front display unit.
 AV COMM CIRCUIT
 2nd Display Co nnection Error When either one of the following items are
detected:
 video distributor power supply and
ground circuits are malfunctioning.
 headrest display unit LH power supply and ground circuits are malfunctioning.
 AV communication circuits between AV
control unit and headrest display unit LH
are malfunctioning.
 location recognition signal circuit be-
tween headrest display unit LH and
ground is malfunctioning.  Video distributor power supply and
ground circuits.
 Headrest display unit LH power supply and ground circuits.
 AV communication circuits between AV control unit and headrest display unit LH.
 Location recognition signal circuit be-
tween headrest display unit LH and
ground.
3rd Display Connection Error When either one of the following items are
detected:
 headrest display unit RH power supply
and ground circuits are malfunctioning.
 AV communication circuits between
headrest display unit LH and headrest
display unit RH are malfunctioning.
 location recognition signal circuit be- tween headrest display unit RH and
ground is malfunctioning.  Headrest display unit RH power supply
and ground circuits.
 AV communication circuits between headrest display unit LH and headrest
display unit RH.
 Location recognition signal circuit be- tween headrest display unit RH and
ground.
AM/FM antenna amplifier short to ground Radio antenna amp. ON signal circuit mal-
function is detected.Radio antenna amp. ON signal circuit be-
tween AV control unit and antenna amp.
AM/FM antenna amplifier open
Ext_Amp_ON output terminal short to
ground BOSE amp. ON signal circuit malfunction is
detected.BOSE amp. ON signal circuit between AV
control unit and BOSE amp.
Ext_Amp_ON output terminal :open
GPS Antenna Error GPS antenna connection malfunction is de-
tected.Check the connection of the GPS antenna
connector.
XM Antenna Connection Error Satellite radio antenna connection malfunc-
tion is detected.
Satellite radio antenna disconnection.
USB electric current Error Detection of overcurrent in USB connector. Check USB harness between the AV con-
trol unit and USB connector.
Error item Description Possible malfunction factor/Action to take
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AV-40
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
AV Communication
When “AV communication” of “CAN Diag Support Monitor” is selected, the f\
ollowing function will be performed.
ECU IDENTIFICATION
The part number of AV control unit is displayed.
SELF DIAGNOSIS RESULT
 In CONSULT-III self-diagnosis, self-diagnosis results and error history are displayed collectively.
 The current malfunction indicates “CRNT”. The past malfunction indicates “PAST”.
 The timing is displayed as “0” if any of the e rror codes [U1000], [U1010], [U1300] and [U1310] is detected.
The counter increases by 1 if the condition is normal at the next ignition switch ON cycle.
Self-diagnosis Results Display Item
Data Monitor The diagnosis of vehicle signal that is input to the AV control unit can be performed.
Work Support Steering angle sensor can be adjusted.
Configuration Read and save the vehicle specification.
 Write the vehicle specification when replacing AV control unit.
Diagnosis mode Description
AV communication
AV&NAVI C/U
Displays the communication status from AV control unit to each unit as well as the error
counter.
AUDIO Displays the AV control unit communication status and the error counter.
Error item Description Possible malfunction factor/Action to take
CAN COMM CIRCUIT [U1000] CAN communication malfunction is detect-
ed.Refer to
AV- 11 8 , "
DiagnosisProcedure".
CONTROL UNIT (CAN) [U1010] CAN initial diagnosis malfunction is detect-
ed.
Replace the AV control unit if the malfunc-
tion occurs constantly.
Refer to AV- 2 1 2 , "
Removal and Installa-
tion".
CONTROL UNIT (AV) [U1310]
AV communication circuit initial diagnosis
malfunction is detected.
Cont Unit [U1200]
AV control unit malfunction is detected.
GYRO NO CONN [U1201]
G-SENSOR NO CONN [U1202]
CAN CONT [U1216]
BLUETOOTH MODULE [U1217]
SUB CPU CONN [U1228]
iPod CERTIFICATION [U1229]
Built-in AUDIO CONN [U122E]
HDD CONN [U1218]
AV control unit malfunction is detected. If the music box function has no mal-
functions, then there is a possibility of
the detection of a temporary malfunc-
tion.
 Replace the AV control unit if the mal- function occurs constantly.
Refer to AV- 2 1 2 , "
Removal and Installa-
tion".
HDD READ [U1219]
HDD WRITE [U121A]
HDD COMM [U121B]
HDD ACCESS [U121C]
GPS COMM [U1204]
GPS malfunction is detected. An intermittent error caused by strong
radio interference may be detected un-
less any symptom (GPS reception error,
etc.) occurs.
 Replace the AV control unit if the mal- function occurs constantly.
Refer to AV- 2 1 2 , "
Removal and Installa-
tion".
GPS ROM [U1205]
GPS RAM [U1206]
GPS RTC [U1207]
USB CONTROLLER [U1225] USB connection malfunction is detected.
Check that the connection to the USB con-
nector is normal.
Revision: 2010 May2011 QX56

AV
DIAGNOSIS SYSTEM (AV CONTROL UNIT)AV-41
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DSP CONN [U121D] AV control unit malfunction is detected. If a disc can be played, then there is a
possibility of the detection of a tempo-
rary malfunction.
 Replace the AV control unit if the mal- function occurs constantly.
Refer to AV- 2 1 2 , "
Removal and Installa-
tion".
DSP COMM [U121E]
DVD COMM [U1227] AV control unit malfunction is detected.  If DVD can be played, then there is a
possibility of the detection of a tempo-
rary malfunction.
 Replace the AV control unit if the mal- function occurs constantly.
Refer to AV- 2 1 2 , "
Removal and Installa-
tion".
CONFIG UNFINISH [U122A] The writing of configuration data is incom-
plete.Write configuration data with CONSULT-
III.
ST ANGLE SEN CALIB [U1232] Predictive course line center position ad-
justment of the steering angle sensor is in-
complete.Adjust the predictive course line center po-
sition of the steering angle sensor.
Refer to
BRC-64, "
Work Procedure".
FRONT DISP CONN [U1243] When either one of the following items are
detected:
 front display unit power supply and
ground circuits are malfunctioning.
 serial communication circuits between
AV control unit and front display unit are
malfunctioning.  Front display unit power supply and
ground circuits.
 Serial communication circuits between AV control unit and front display unit.
GPS ANTENNA CONN [U1244] GPS antenna connection malfunction is
detected.Check the connection of the GPS antenna
connector.
 AV COMM CIRCUIT [U1300]
 VIDEO DIST CONN [U1246] When either one of the following items are
detected:
 video distributor power supply and
ground circuits are malfunctioning.
 headrest display unit LH power supply and ground circuits are malfunctioning.
 AV communication circuits between AV
control unit and headrest display unit LH
are malfunctioning.
 location recognition signal circuit be-
tween headrest display unit LH and
ground is malfunctioning.  Video distributor power supply and
ground circuits.
 Headrest display unit LH power supply
and ground circuits.
 AV communication circuits between AV control unit and headrest display unit
LH.
 Location recognition signal circuit be- tween headrest display unit LH and
ground.
3RD DISP CONN [U125A] When either one of the following items are
detected:
 headrest display unit RH power supply
and ground circuits are malfunctioning.
 AV communication circuits between headrest display unit LH and headrest
display unit RH are malfunctioning.
 location recognition signal circuit be- tween headrest display unit RH and
ground is malfunctioning.  Headrest display unit RH power supply
and ground circuits.
 AV communication circuits between Headrest display unit LH and headrest
display unit RH.
 Location recognition signal circuit be- tween headrest display unit RH and
ground.
XM ANTENNA CONN [U1258] Satellite radio antenna connection mal-
function is detected.Satellite radio antenna disconnection.
USB OVERCURRENT [U1263] Detection of overcurrent in USB connect-
er.Check USB harness between the AV con-
trol unit and USB connector.
ANTENNA AMP TERMINAL
[OPEN or SHORT]
[U1264] Radio antenna amp. ON signal circuit mal-
function is detected.
Radio antenna amp. ON signal circuit be-
tween AV control unit and antenna amp.
AMP ON TERMINAL
[GND-SHORT or VB-SHORT]
[U1265] BOSE amp. ON signal circuit malfunction
is detected.
BOSE amp. ON signal circuit between AV
control unit and BOSE amp.
Error item Description Possible malfunction factor/Action to take
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AV
DIAGNOSIS SYSTEM (AV CONTROL UNIT)AV-43
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SELECTION FROM MENU
Allows the technician to select which vehicle signal
s should be displayed and displays the status of the
selected vehicle signals.
WORK SUPPORT
Adjusts the neutral position of the steering angle sensor.
CAUTION:
For vehicles with VDC, adjust th e steering angle sensor neutral posi tion on the ABS actuator control
unit side.
CONFIGURATION
Configuration has three functions as follows.
SIDE VIEW SW Off — This item is displayed, but cannot be monitored.
ROOM LAMP Off — This item is displayed, but cannot be monitored. Display Item Display Vehicle status Remarks
Item to be selected Description
VHCL SPD SIG
The same as when “ALL SIGNALS”
is selected.
PKB SIG
ILLUM SIG
IGN SIG
REV SIG
SIDE VIEW SW
ROOM LAMP
Item Description
ST ANGLE SENSOR ADJUSTMENT Adjusts the neutral position of the steering angle sensor.
Function Description
READ CONFIGURATION  Reads the vehicle configuration of current AV control unit.
 Saves the read vehicle configuration.
WRITE CONFIGURATION-Manual selection Writes the vehicle configuration with manual selection.
WRITE CONFIGURATION-Config file Writes the vehicle configuration with saved data.
Revision: 2010 May2011 QX56

AV-44
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (AROUND VIEW MONITOR CONTROL UNIT)
DIAGNOSIS SYSTEM (AROUND VIEW MONITOR CONTROL UNIT)
On Board Diagnosis FunctionINFOID:0000000006216221
The diagnosis function of around view monitor control unit is displayed when selecting “Camera Cont.” of Con-
firmation/Adjustment mode in the multi AV system.
Around view monitor control unit diagnosis item
CAUTION:
*: Never perform other operations for approxim ately 10 seconds after performing "Initialize Camera
Image Calibration".
Connection Confirmation
The status of signals inputted to around view monitor control unit can
be checked.
Connection Confirmation item list
AV control unit Confirmation/Adjustment mode Function
Camera Cont. Connection Confirmation
The status of signals input to around view monitor control unit
can be checked.
Calibrating Cam-
era Image Rear Camera Performs the calibration of rear camera.
Pass-Side Camera Performs the calibration of side camera RH.
Front Camera Performs the calibration of front camera.
Dr-Side Camera Performs the calibration of side camera LH.
Initialize Camera Image
Calibration
*The calibration can be initialized to NISSAN factory shipment
condition.
Fine Tuning of Bird’s-Eye View  The confirmation and adjustment of the difference between
each camera can be performed.
 The system changes to the ZOOM function by the operation of shift and the ZOOM ratio of each camera can be changed.
Correct Draw Line
of Wide View Rear-Wide View The position of rear wide view guideline can be changed.
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Diagnosis item Display Description
Steer. Angle Sensor ON/OFF Input status of steering angle sensor is displayed by ON/OFF.
Reverse Sensor ON/OFF Input status of reverse signal inputted to around view monitor control unit is dis-
played by ON/OFF in real time.
Vehicle Speed Sensor ON/OFF  Input status of vehicle speed signal inputted to around view monitor control
unit is displayed by ON/OFF.
 When the vehicle speed signal is input, it is turned ON. It remains ON until con- nection confirmation mode is stopped.
Camera Switch ON/OFF  The status of camera switch signal received via AV communication from AV
control unit is displayed by ON/OFF.
 When the camera switch signal is received once, it is turned ON. It remains ON until connection confirmation mode is stopped.
IGN ON/OFF Input status of ignition signal inputted to around view monitor control unit is dis-
played by ON/OFF in real time.
ILL ON/OFF Input status of illumination signal inputted to around view monitor control unit is
displayed by ON/OFF in real time.
Revision: 2010 May2011 QX56