2011 INFINITI QX56 Factory Service Manual

oil reset ABS engine oil fuel pressure child restraint lights

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INFINITI QX56 2011 Factory Service Manual
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�

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
JSNIA2993ZZ
Revision: 2010 May2011 QX56

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INFINITI QX56 2011 Factory Service Manual
AV-30
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
4. Items of “Self Diagnosis” and “Confirmation/Adjustment” can be
selected on the trouble diagnosis initial screen.
SELF-DIAGNO

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INFINITI QX56 2011 Factory Service Manual
AV
DIAGNOSIS SYSTEM (AV CONTROL UNIT)AV-31
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SELF-DIAGNOSIS RESULTS
Check the applicable display at the following table, and then repair the malfunct

AV
DIAGNOSIS SYSTEM (AV CONTROL UNIT)AV-31
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SELF-DIAGNOSIS RESULTS
Check the applicable display at the following table, and then repair the malfunctioning parts.
Only Unit Part Is Displayed In Red.
A Connecting Cable Between Units Is Displayed In Yellow.
CONFIRMATION/ADJUSTMENT MODE
Screen switch Description Possible malfunction location / Action to
take
Control Unit Malfunction is detected in AV control unit
power supply and ground circuits.Check AV control unit power supply and
ground circuits. When detecting no mal-
function in those components, replace AV
control unit.
Area with yellow connection lines Description
Possible malfunction location / Action to
take
Control unit ⇔ Front Display Serial communication circuits between AV
control unit and front display unit are mal-
functioning. Serial communication circuits between AV
control unit and front display unit.
Control unit ⇔ GPS Antenna GPS antenna connection malfunctions de-
tected. Check the connection of the GPS antenna
connector.
Control unit ⇔ XM Antenna Satellite radio antenna connection malfunc-
tion is detected.
Satellite radio antenna disconnection
Control unit ⇔ Around view
Around view ⇔ Parking Sensor When either one of the following items are
detected:
around view monitor control unit power
supply and ground circuits are malfunc-
tioning.
AV communication circuits between AV
control unit and around view monitor
control unit are malfunctioning. Around view monitor control unit power
supply and ground circuits.
AV communication circuits between AV
control unit and around view monitor
control unit.
Control unit ⇔ Parking Sensor
Around view ⇔ Parking Sensor When either one of the following items are
detected:
sonar control unit power supply and
ground circuits are malfunctioning.
AV communication circuits between AV
control unit and sonar control unit are
malfunctioning. Sonar control unit power supply and
ground circuits.
AV communication circuits between AV control unit and sonar control unit.
Control unit ⇔ Video Dist.(Rear)
Video Dist.(Rear) ⇔ Rear display 2 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.
Video Dist.(Rear) ⇔ Rear display 2 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.
Revision: 2010 May2011 QX56

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INFINITI QX56 2011 Factory Service Manual
AV-32
< SYSTEM DESCRIPTION >
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
1. Start the diagnosis function and select “Confirmation/Adjustment”. The confirmation/adjustment mode
indicates where each item ca

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INFINITI QX56 2011 Factory Service Manual
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.
S

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INFINITI QX56 2011 Factory Service Manual
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

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.
JSNIA2179ZZ
JSNIA2180ZZ
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
Revision: 2010 May2011 QX56

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INFINITI QX56 2011 Factory Service Manual
AV
DIAGNOSIS SYSTEM (AV CONTROL UNIT)AV-35
< SYSTEM DESCRIPTION >
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Error item
Some error items may be displayed simultaneously accordi ng to the cause. If some error items

AV
DIAGNOSIS SYSTEM (AV CONTROL UNIT)AV-35
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Error item
Some error items may be displayed simultaneously accordi ng to the cause. If some error items are displayed
simultaneously, the detection of the cause can be per formed by the combination of display items
JPNIA1788GB
Error item Description Possible malfunction factor/Action to take
CAN COMM CIRCUIT CAN communication malfunction is detect-
ed.Perform diagnosis with CONSULT-III, and
then repair the malfunctioning parts accord-
ing to the diagnosis results.
Refer to
AV- 3 9 , "
CONSULT-III Function".
CONTROL UNIT (CAN) 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)
AV communication circuit initial diagnosis
malfunction is detected.
FLASH-ROM Error Of Control Unit
AV control unit malfunction is detected.
Connection Of Gyro
Connection of G Sensor
CAN Controller Memory Error
Bluetooth Module Connection Error
Sub CPU Connection Error
Audio connection error
DSP Connection Error
AV control unit malfunction is detected. If a disc 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".
DSP Communication Error
HDD Connection Error
AV control unit malfunction is detected. If the music box function has no malfunc-
tions, then there is a possibility of the de-
tection 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".
HDD Read Error
HDD Write Error
HDD Communication Error
HDD Access Error
GPS Communication Error
GPS malfunction is detected. An intermittent error caused by strong ra-
dio interference may be detected unless
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 Error
GPS RAM Error
GPS RTC Error
Revision: 2010 May2011 QX56

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INFINITI QX56 2011 Factory Service Manual
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 Com

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
Revision: 2010 May2011 QX56

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