2007 INFINITI QX56 turn signal

NAVIGATION SYSTEM
AV-73
< SERVICE INFORMATION >
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NAVIGATION SYSTEM
System DescriptionINFOID:0000000003533706
NOTE:
Refer to NAVI System Owner's Manual for system operation.
The navigation system periodically calculates the vehicle'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 sen-
sor), 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 DVD-
ROM, which is stored in the DVD-ROM drive (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 sensor 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. Adjustments can be made in extreme cases (such as driving with tire chain fitted on tires).
Refer to AV-103, "
Confirmation/Adjustment Mode".
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 GPS 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.
MAP-MATCHING
WKIA1371E
SEL684V
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.

AV-90
< SERVICE INFORMATION >
NAVIGATION SYSTEM
49 – Shield ground – – – –Video display in-
terference.
61 (R/L) GroundIllumination
signalInput ONLighting switch in 1st
positionBattery voltageDisplay unit illu-
mination does
not change
when lighting
switch is turned
to 1st position.- Lighting switch is
OFF3V or less
63 (G/R) Ground Ignition signal Input ON – Battery voltageNavigation cur-
rent location
mark does not
indicate the cor-
rect position.
65 (G/W) GroundReverse
signalInput ONA/T selector lever in
R positionBattery voltageThe navigation
current-location
mark moves
strangely when
the vehicle is
moving back-
wards. A/T selector lever
not in R position0V
66 (W/R) GroundVeh icl e
speed signal
(8-pulse)Input ONWhen vehicle speed
is approx. 40 km/h
(25 MPH)Navigation cur-
rent location
mark does not
indicate the cor-
rect position.
68 – Shield ground – – – – –
69 (L) GroundCommunica-
tion signal (+)Input/
outputON –System does not
work properly.
70 (P) GroundCommunica-
tion signal (–)Input/
outputON –System does not
work properly.
73 74 GPS signal Input ONConnector is not
connected.5VNavigation sys-
tem GPS correc-
tion is not
possible. Te r m i n a l N o .
(Wire color)
ItemSignal
input/
outputCondition
Voltag e
(Approx.)Example of
symptom
+–Igni-
tion
switchOperation
PKIA1935E
SKIA0175E
SKIA0176E

NAVIGATION SYSTEM
AV-91
< SERVICE INFORMATION >
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Terminal and Reference Value for Display Control unitINFOID:0000000003533714
Te r m i n a l N o .
(Wire color)
ItemSignal
input/
outputCondition
Vo l ta g e
(Approx.)Example of
symptom
+–Igni-
tion
switchOperation
1 (Y) GroundBattery Pow-
erInput OFF – Battery voltageSystem does not
work properly.
2 (L/W) GroundPower Supply
(Inverter) Output ON – 9 VScreen is not
shown.
3 (B) Ground Ground – ON – 0 V –
4 (L/R) GroundPower Supply
(Signal) Output ON – 9 VScreen is not
shown.
5 (P) Ground(Inverter)
Ground –ON – 0 V –
6 (GR) GroundReverse
signalInput ONSelector lever in R
positionBattery voltage
Impossible to
gain direction of
vehicle. Selector lever not in
R position0 V
7 (P/L) Ground(Signal)
Ground –ON – 0 V –
10 (O) Ground ACC signal Input ACC – Battery voltageSystem does not
work properly.
12 (G/R) Ground Ignition signal Input ON – Battery voltageVehicle informa-
tion setting is not
possible.
13 (B) Ground Ground – ON – 0 V –
14 (R/L) GroundIllumination
signalInput OFFLighting switch posi-
tion 1st or 2ndBattery voltageDisplay unit
does not change
when lighting
switch is turned
to 1st position. Lighting switch posi-
tion OFF0 V
16 (W/R) GroundVehicle
speed signal
(8–pulse)Input ONWhen vehicle speed
is approx. 40 km/h
(25 MPH)Value of vehicle
speed informa-
tion is not accu-
rately displayed.
25 (L) – CAN-H – – – – –
26 (P) – CAN-L – – – – –
28 (V) GroundCommunica-
tion signal (+)Input/
OutputON –System does not
work properly.
29 – Shield ground – – – – –
SKIA0168E
SKIA0175E

AV-96
< SERVICE INFORMATION >
NAVIGATION SYSTEM
Terminal and Reference Value for AV Switch
INFOID:0000000003533716
18 (B) 7RGB signal
(B: blue)Input ONSelect “Display Di-
agnosis (DCU)” of
CONFIRMATION/
ADJUSTMENT
function.Screen looks
yellowish.
19 (G) 21RGB syn-
chronizing
signalInput ONPress the “TRIP”
button.NAVI screen is
rolling.
20 (W) 21Vertical syn-
chronizing
(VP) signalOutput ON –Operating
screen for audio
and A/C is not
displayed when
showing NAVI
screen.
21 – Shield ground – – – – –
22 (L) 23Display com-
munication
signal
(DSP-DCU)Output ON –Though a screen
is displayed, it is
impossible to ad-
just brightness.
23 – Shield ground – – – – – Terminal No. (Wire
color)
ItemSignal
input/
outputCondition
Voltag e
(Approx.)Example of
symptom
+–Igni-
tion
switchOperation
SKIA4982E
SKIA0164E
SKIA4983E
SKIA4363E
Te r m i n a l N o .
(Wire color)
ItemSignal
input/
outputCondition
Vo l ta g e
(Approx.)Example of
symptom
+–Ignition
switchOperation
1 (Y) Ground Battery power Input OFF - Battery voltageSystem does not
work properly.
2 (V) Ground ACC signal Input ACC - Battery voltageSystem does not
work properly.
3 (R/L) GroundIllumination
signalInput OFFLighting switch is
ON (position 1).Battery voltageAV switch illumi-
nation does not
come on when
lighting switch is
ON (position 1). Turn lighting switch
OFF.3.0V or less

AV-98
< SERVICE INFORMATION >
NAVIGATION SYSTEM
DIAGNOSIS ITEM
NOTE:
Make the status that is set by D/N function be shown.
Self-Diagnosis Mode (DCU)INFOID:0000000003533719
OPERATION PROCEDURE
1. Start the engine.
2. Turn the audio system off.
Mode Description
Self-diagnosis (DCU) Display control unit diagnosis.
Self-diagnosis (NAVI)• NAVI Control unit diagnosis (DVD-ROM drive) will not be diagnosed
when no map DVD-ROM is in it.
• Analyzes connection between the NAVI control unit and the GPS anten-
na and operation of each unit.
CONFIRMATION/
ADJUSTMENTDisplay diagnosisIn display control unit mode, color tone and shading of the screen can be
checked by the display of a color bar and a gray scale.
Vehicle signalsIn display control unit mode, analyzes the following vehicle signals: Vehicle
speed signal, light signal
NOTE, ignition switch signal, and reverse signal.
Auto Climate Control A/C self-diagnosis of A/C system.
NavigationDisplay diagnosisIn NAVI C/U mode, color tone and shading of the screen can be checked
by the display of a color bar and a gray scale.
Vehicle signalsIn NAVI C/U mode, analyzes the following vehicle signals: Vehicle speed
signal, light signal, ignition switch signal, and reverse signal.
History of ErrorsDiagnosis results previously stored in the memory (before turning ignition
switch ON) are displayed in this mode. Time and location when/where the
errors occurred are also displayed.
Naviga-
tionDisplay Lon-
gitude & Lat-
itudeDisplay the map. Use the joystick to adjust position. Longitude and latitude
will be displayed.
Speed Cali-
brationUnder ordinary conditions, the navigation system distance measuring func-
tion will automatically compensate for minute decreases in wheel and tire
diameter caused by tire wear or low-pressure. Speed calibration immedi-
ately restores system accuracy in cases such as when distance calibration
is needed because of the use of tire chains in inclement weather.
Angle ad-
justmentCorrects difference between actual turning angle of a vehicle and turning
angle of the car mark on the display.
Initialize Lo-
cationThis mode is for initializing the current location. Use when the vehicle is
transported a long distance on a trailer, etc.
CAN DIAG SUPPORT MONITOR Display status of CAN communication.

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, set D/N mode to ON/OFF of
light switch (normal setting).
• OFF: D (Day mode)
• ON: N (Night mode)
Unless mode is in above setting, light signal (ON/OFF) may
not be accurately displayed.
• If vehicle speed is NG, refer to AV-114, "
Vehicle Speed Signal Inspection for NAVI Control Unit".
• If light is NG, refer to AV-116, "
Illumination Signal Inspection for NAVI Control Unit".
• If IGN is NG, refer to AV-117, "
Ignition Signal Inspection for NAVI Control Unit".
• If reverse is NG, refer to AV-117, "
Reverse Signal Inspection for NAVI Control Unit".
ERROR HISTORY
DIAGNOSIS BY ERROR HISTORY
The “Self-diagnosis” results indicate whether an error occurred during the period from when the ignition switch
is turned to ON until “Self-diagnosis” is completed.
If an error occurred before the ignition switch was turned to ON and does not occur again until the “Self-diag-
nosis” is completed, the diagnosis result will be judged normal. Therefore, those errors in the past which can-
not be found by the “Self-diagnosis” must be found by diagnosing the “Error History”.
WKIA4443E
Diagnosis item Display Condition Remarks
Vehicle speedON Vehicle speed > 0 km/h (0 MPH)
Changes in indication may be delayed by ap-
prox. 1.5 seconds. This is normal. OFF Vehicle speed = 0 km/h (0 MPH)
– Ignition switch in ACC position
LightsON Lighting switch ON
–
OFF Lighting switch OFF
IgnitionON Ignition switch ON
–
OFF Ignition switch ACC
ReverseON Selector lever in R position
Changes in indication may be delayed by ap-
prox. 1.5 seconds. This is normal. OFF Selector lever in other than R position
– Ignition switch in ACC position
WKIA4444E

AV-114
< SERVICE INFORMATION >
NAVIGATION SYSTEM
1. Disconnect AV switch connector.
2. Check voltage between connector terminals and ground as fol-
lows.
OK or NG
OK >> GO TO 3.
NG >> Check harness for open between AV switch and fuse.
3.CHECK GROUND CIRCUIT
Check continuity between AV switch and ground as follows.
OK or NG
OK >> Inspection End.
NG >> Repair or replace harness.
Vehicle Speed Signal Inspection for NAVI Control UnitINFOID:0000000003533728
1.CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect NAVI control unit connector B152, combination
meter connector M24 and display control unit connector M94.
3. Check continuity between NAVI control unit harness connector
B152 (B) terminal 66 and combination meter harness connector
M24 (A) terminal 29.
4. Check continuity between NAVI control unit harness connector
B152 (B) terminal 66 and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair harness.
2.CHECK 1: VEHICLE SPEED SIGNAL
Terminals Ignition switch position
(+)
(–) OFF ACC ON
Connector Terminal
M981
GroundBattery
voltageBattery
voltageBattery
voltage
20VBattery
voltageBattery
voltage
WKIA1767E
Te r m i n a l s
Ignition switch Continuity
Connector Terminal —
M98 5 Ground OFF Yes
WKIA1768E
Continuity should exist.
Continuity should not exist.
WKIA4445E

NAVIGATION SYSTEM
AV-115
< SERVICE INFORMATION >
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1. Connect NAVI control unit connector.
2. Turn ignition switch ON.
3. Check voltage between NAVI control unit harness connector
B152 terminal 66 and ground.
OK or NG
OK >> GO TO 3.
NG >> Replace NAVI control unit. Refer to AV-145, "
Removal
and Installation".
3.CHECK 2: VEHICLE SPEED SIGNAL
1. Connect combination meter connector and display control unit
connector.
2. Drive vehicle at a constant speed.
3. Check signal between NAVI control unit harness connector
B152 terminal 66 and ground with CONSULT-ll or oscilloscope.
OK or NG
OK >> Replace NAVI control unit. Refer to AV-145, "Removal
and Installation".
NG >> Check combination meter system. Refer to DI-17, "
Vehicle Speed Signal Inspection".
Vehicle Speed Signal Inspection for Display Control UnitINFOID:0000000003533729
1.CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect display control unit connector M94, combination
meter connector M24 and NAVI control unit connector B152.
3. Check continuity between display control unit harness connector
M94 terminal 16 and combination meter harness connector M24
terminal 29.
4. Check continuity between display control unit harness connector
M94 terminal 16 and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair harness.
2.CHECK 1: VEHICLE SPEED SIGNALApprox. 3.5V or more
WKIA4209E
66 - Ground : Refer to AV-89, "Terminal
and Reference Value for NAVI
Control Unit".
WKIA4210E
Continuity should exist.
Continuity should not exist.
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