2007 INFINITI QX56 Factory Service Manual

turn signal bulb adblue water pump bonnet brake rotor fuel tank capacity

Page 641 of 3061

INFINITI QX56 2007 Factory Service Manual NAVIGATION SYSTEM
AV-101
< SERVICE INFORMATION >
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Self-Diagnosis Mode (NAVI)INFOID:0000000003533720
OPERATION PROCEDURE
1. Start the engine.
2. Turn the audio system of

Page 642 of 3061

INFINITI QX56 2007 Factory Service Manual AV-102
< SERVICE INFORMATION >
NAVIGATION SYSTEM
6. On the “SELF DIAGNOSIS” screen, each unit name will be col-
ored according to the diagnosis result, as follows.
• If several malfunctions are

AV-102
< SERVICE INFORMATION >
NAVIGATION SYSTEM
6. On the “SELF DIAGNOSIS” screen, each unit name will be col-
ored according to the diagnosis result, as follows.
• If several malfunctions are present in a unit, color of its switch
on the screen will be either red, yellow, or gray, determined by
the malfunction of the highest priority.
7. Select a switch on the “SELF DIAGNOSIS” screen and com-
ments for the diagnosis results will be shown.
• When the switch is green, the following comment will be
shown. “Connection is normal. Please refer to the Confirma-
tion / Adjustment function or service manual for more detailed
diagnosis information."
• When the switch is yellow, the following comment will be
shown. “Connection to the following unit is abnormal. See the
service manual for further details”.
• When the switch is red, the following comment will be shown.
“Center Control Unit is abnormal”.
• When the switch is gray, the following comment will be shown.
“Self-diagnosis for DVD-ROM DRIVER of NAVI was not conducted because no DVD-ROM was avail-
able.”
SELF–DIAGNOSIS RESULT
Quick reference table
1. Select an malfunctioning diagnosis No. in the diagnosis result quick reference table.
2. Find estimated malfunctioning system in the diagnosis No. table and perform check by referring to AV-86,
"Wiring Diagram - COMM -".
3. Turn the ignition switch OFF and perform self-diagnosis again.
*: Center Control unit = NAVI control unit
CAUTION:
• When AV switch has a malfunction, you cannot start. Refer to AV-134, "
Unable to Operate All of AV
Switches (Unable to Start Self-Diagnosis)".
• When display unit has a malfunction, you cannot start. Refer to AV-132, "
Screen Is Not Shown".
Self-diagnosis codes
Green : Not malfunctioning.
Yellow : Cannot be judged by self-diagnosis results.
Red : Unit is malfunctioning.
Gray : Diagnosis has not been done.
WKIA4441E
WKIA4442E
Screen switch
Diagnosis No.
Switch color Center control unit* GPS antenna
Red×1
Gray×2
Ye l l o w×3
×4
××5
Diagnosis
No.Possible causeReference
page
1 NAVI control unit malfunction.Refer to
AV- 1 4 5
2 No map DVD-ROM is inserted in the NAVI control unit.Refer to
AV- 1 2 3

Page 643 of 3061

INFINITI QX56 2007 Factory Service Manual NAVIGATION SYSTEM
AV-103
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Confirmation/Adjustment ModeINFOID:0000000003533721
OPERATION PROCEDURE
1. Start the engine.
2. Turn the audio system o

Page 644 of 3061

INFINITI QX56 2007 Factory Service Manual AV-104
< SERVICE INFORMATION >
NAVIGATION SYSTEM
5. When “Confirmation/Adjustment” is selected on the initial self-
diagnosis screen, the operation will enter the CONFIRMATION/
ADJUSTMENT mode. In

Page 645 of 3061

INFINITI QX56 2007 Factory Service Manual NAVIGATION SYSTEM
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• If vehicle speed is NG, refer to AV-115, "Vehicle Speed Signal Inspection for Display Control Unit".
• If light i

Page 646 of 3061

INFINITI QX56 2007 Factory Service Manual AV-106
< SERVICE INFORMATION >
NAVIGATION SYSTEM
• A comparison check can be made of each actual vehicle signal
and the signals recognized by the system.
CAUTION:
In case of confirming light signal,

Page 647 of 3061

INFINITI QX56 2007 Factory Service Manual NAVIGATION SYSTEM
AV-107
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The Error History displays the time and place of the most recent occurrence of that error. However, take note
of the fo

NAVIGATION SYSTEM
AV-107
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The Error History displays the time and place of the most recent occurrence of that error. However, take note
of the following points.
• Correct time of the error occurrence may not be displayed when the GPS antenna substrate within the NAVI
control unit has malfunctioned.
• Place of the error occurrence is represented by the position of the current-location mark at the time when the
error occurred. If the current-location mark has deviated from the correct position, then the place of the error
occurrence may be located correctly.
• The maximum number of occurrences which can be stored is 50. For the 51st and later occurrences, the dis-
played number remains 50.
When a reproducible malfunction occurred but its cause cannot be identified because several errors are
present, record the item, number and place (longitude/latitude) of error occurrence (or delete the Error His-
tory), then turn the ignition switch from OFF to ON to reproduce the malfunction. Check the Error History to
find the items which show an increased number of occurrences, and diagnose the item.
Error itemPossible causes
Example of symptom
Action/symptom
Gyro sensor
disconnectedCommunications malfunction between NAVI control unit and inter-
nal gyro.
• Navigation location detection performance has
deteriorated.
(Angular velocity cannot be detected.) • Perform self-diagnosis.
• When the NAVI control unit is judged normal by self-diagnosis,
the symptom may be intermittent, caused by strong radio interfer-
ence.
GPS discon-
nectedCommunication error between NAVI control unit and internal GPS
substrate.• Navigation location detection performance has
deteriorated.
(Location correction using GPS is not per-
formed.)
• GPS receiving status remains gray. • Perform self-diagnosis.
• When the NAVI control unit is judged normal by self-diagnosis,
the symptom may be intermittent, caused by strong radio interfer-
ence.
GPS trans-
mission ca-
ble
malfunctionMalfunctioning transmission wires to NAVI control unit and internal
GPS substrate.
• During self-diagnosis, GPS diagnosis is not
performed. • Perform self-diagnosis.
• When the NAVI control unit is judged normal by self-diagnosis,
the symptom may be intermittent, caused by strong radio interfer-
ence.
GPS input
line connec-
tion errorMalfunctioning receiving wires to NAVI control unit and internal
GPS substrate.• Navigation location detection performance has
deteriorated.
(Location correction using GPS is not per-
formed.)
• GPS receiving status remains gray. • Perform self-diagnosis.
• When the NAVI control unit is judged normal by self-diagnosis,
the symptom may be intermittent, caused by strong radio interfer-
ence.
GPS TCX0
over
GPS TCX0
underOscillating frequency of the GPS substrate frequency synchronizing
oscillation circuit exceeded (or below) the specification
• Navigation location detection performance has
deteriorated.
(Location correction using GPS is not per-
formed.)
• GPS receiving status remains gray. • Perform self-diagnosis.
• When the NAVI control unit is judged normal by self-diagnosis,
the symptom may be intermittent, caused by strong radio interfer-
ence, or the control unit may have been subjected to excessively
high or low temperatures.
GPS ROM
malfunction
GPS RAM
malfunctionContents of ROM (or RAM) in GPS substrate are malfunctioning. • Location detection accuracy of the navigation
system will deteriorate, depending on the error
area in the memory, because GPS cannot
make correct positioning.
(Location correction using GPS is not per-
formed.) • Perform self-diagnosis.
• When the NAVI control unit is judged normal by self-diagnosis,
the symptom may be intermittent, caused by strong radio interfer-
ence.

Page 648 of 3061

INFINITI QX56 2007 Factory Service Manual AV-108
< SERVICE INFORMATION >
NAVIGATION SYSTEM
NAVIGATION
1. The navigation screen will be shown, and items “Display Longi-
tude & Latitude”, “Speed Calibration”, “Angle Adjustment” and

AV-108
< SERVICE INFORMATION >
NAVIGATION SYSTEM
NAVIGATION
1. The navigation screen will be shown, and items “Display Longi-
tude & Latitude”, “Speed Calibration”, “Angle Adjustment” and
“Initialize Location” will become selective.
2. Select each switch on “NAVIGATION” screen to display the rele-
vant diagnosis screen.
Angle adjustment
• Adjusts turning angle output detected by the gyroscope.
Speed Calibration
GPS RTC
malfunctionClock IC in GPS substrate is malfunctioning. • Correct time may not be displayed.
• After the power is turned on, the system al-
ways takes some time until GPS positioning
becomes possible. (The GPS receiver starts
positioning without re-collecting the whole sat-
ellite information when it judged the data
stored in the receiver is correct.)
• Correct time of error occurrence may not be
stored in the ″Error History″. • Perform self-diagnosis.
• When the NAVI control unit is judged normal by self-diagnosis,
the symptom may be intermittent, caused by strong radio interfer-
ence.
GPS anten-
na discon-
nectedMalfunctioning connection between GPS substrate in NAVI control
unit and GPS antenna.• Navigation location detection performance has
deteriorated.
(Location correction using GPS is not per-
formed.)
• GPS receiving status remains gray. • Perform self-diagnosis.
• When connection between NAVI control unit and GPS antenna is
judged normal by self-diagnosis, the symptom may be intermit-
tent, caused by impact or vibration.
Low voltage
of GPSThe power voltage supplied to the GPS circuit board has de-
creased.• Navigation location detection performance has
deteriorated.
(Location correction using GPS is not per-
formed.)
• GPS receiving status remains gray. • Perform self-diagnosis.
• When connection between NAVI control unit and GPS antenna is
judged normal by self-diagnosis, the symptom may be intermit-
tent, caused by impact or vibration.
DVD-ROM
Malfunction
DVD-ROM
Read error
DVD-ROM
Response Er-
rorMalfunctioning NAVI control unit. -
Dedicated map DVD-ROM is in the system, but the data cannot be
read.• The map of a particular location cannot be dis-
played.
• Specific guidance information cannot be dis-
played.
• Map display is slow.
• Guidance information display is slow.
• System has been affected by vibration. • Is map DVD-ROM damaged, warped, or dirty?
- If damaged or warped, the map DVD-ROM is malfunctioning.
- If dirty, wipe the DVD-ROM clean with a soft cloth.
• Perform self-diagnosis.
• When NAVI control unit is judged normal by self-diagnosis, the
symptom is judged intermittent, caused by vibration. Error itemPossible causes
Example of symptom
Action/symptom
WKIA4312E
WKIA4314E

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