2004 INFINITI QX56 turn signal

NAVIGATION SYSTEM
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On Board Self-Diagnosis FunctionEKS007LT
DESCRIPTION

Diagnosis function consists of the self-diagnosis mode performed automatically and the CONFIRMATION/
ADJUSTMENT mode operated manually.

Self-diagnosis mode checks for connections between the units constituting this system, analyzes each
individual unit at the same time, and displays the results on the LCD screen.

CONFIRMATION/ADJUSTMENT mode is used to perform trouble diagnosis that require operation and
judgment by an operator (trouble that cannot be automatically judged by the system), to check/change the
set value, and to display the History of Errors of the navigation system.
DIAGNOSIS ITEM
NOTE:
Make the status that is set by D/N function be shown.
Self-Diagnosis Mode (DCU)EKS007LU
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
antenna 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: Vehi-
cle speed signal, light signal
NOTE , ignition switch signal, and reverse sig-
nal.
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
function will automatically compensate for minute decreases in wheel and
tire diameter caused by tire wear or low-pressure. Speed calibration imme-
diately restores system accuracy in cases such as when distance calibra-
tion is needed because of the use of tire chains in inclement weather.
Angle
adjustmentCorrects difference between actual turning angle of a vehicle and turning
angle of the car mark on the display.
Initialize
LocationThis 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.

NAVIGATION SYSTEM
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Confirmation/Adjustment ModeEKS007LW
OPERATION PROCEDURE
1. Start the engine.
2. Turn the audio system off.
3. While pressing the “PAUSE/MUTE” button, turn the volume con-
trol dial clockwise or counterclockwise for 30 clicks or more.
(When the self-diagnosis mode is started, a short beep will be
heard.)

Shifting from current screen to previous screen is performed
by pressing “PREV” button.
4. The initial self-diagnosis screen will be shown, and items “Self-
Diagnosis (DCU)”, “Self-Diagnosis (NAVI)”, “Confirmation/
Adjustment” and “CAN DIAG SUPPORT MONITOR” will
become selective.
5. When “Confirmation/Adjustment” is selected on the initial self-
diagnosis screen, the operation will enter the CONFIRMATION/
ADJUSTMENT mode. In this mode, check and adjustment of
each item will become possible.
6. The initial trouble diagnosis screen will be shown, and items
“Display Diagnosis”, “Vehicle Signals”, “Auto Climate Control”
and “Navigation” will become selective.
7. Select each switch on “CONFIRMATION/ADJUSTMENT”
screen to display the relevant diagnosis screen.
WKIA1504E
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AV-110
NAVIGATION SYSTEM
Revision: August 20072004 QX56
VEHICLE SIGNALS

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- 1 2 1 , "Vehicle Speed Signal Check for NAVI Control Unit" .

If light is NG, refer to AV- 1 2 3 , "Illumination Signal Check for NAVI Control Unit" .

If IGN is NG, refer to AV-123, "Ignition Signal Check for NAVI Control Unit" .

If reverse is NG, refer to AV-124, "Reverse Signal Check for NAVI Control Unit" .
HISTORY OF ERRORS
DIAGNOSIS BY HISTORY OF ERRORS
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.
LKIA0217E
Diagnosis item Display Condition Remarks
Vehicle speedON Vehicle speed > 0 km/h (0 MPH)
Changes in indication may be delayed by
approx. 1.5 seconds. This is normal. OFF Vehicle speed = 0 km/h (0 MPH)
– Ignition switch in ACC position
LightON Lighting switch ON
–
OFF Lighting switch OFF
IGNON Ignition switch ON
–
OFF Ignition switch ACC
ReverseON Selector lever in R position
Changes in indication may be delayed by
approx. 1.5 seconds. This is normal. OFF Selector lever in other than R position
– Ignition switch in ACC position
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NAVIGATION SYSTEM
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Vehicle Speed Signal Check for NAVI Control UnitEKS007M3
1. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect NAVI control unit connector, combination meter connector, display control unit connector and
shift lock control unit connector.
3. Check continuity between NAVI control unit harness connector
B152 terminal 28 (W/R) and combination meter harness con-
nector M24 terminal 29 (W/R).
4. Check continuity between NAVI control unit harness connector
B152 terminal 28 (W/R) and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair harness.
2. CHECK 1: VEHICLE SPEED SIGNAL
1. Connect NAVI control unit connector.
2. Turn ignition switch ON.
3. Check voltage between NAVI control unit harness connector
B152 terminal 28 (W/R) and ground.
OK or NG
OK >> GO TO 3.
NG >> Replace NAVI control unit. Refer to AV-157, "
Removal
and Installation of NAVI Control Unit" .
3. CHECK 2: VEHICLE SPEED SIGNAL
1. Connect combination meter connector, display control unit connector and shift lock control unit connector.
2. Drive vehicle at a constant speed.
3. Check signal between NAVI control unit harness connector
B152 terminal 28 (W/R) and ground with CONSULT-ll or oscillo-
scope.
OK or NG
OK >> Replace NAVI control unit. Refer to AV-157, "Removal
and Installation of NAVI Control Unit" .
NG >> Check combination meter system. Refer to DI-19, "
Veh i-
cle Speed Signal Inspection" . Continuity should exist.
Continuity should not exist.
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Approx. 3.5V or more
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28 (W/R) – Ground : Refer to AV-90, "Terminals
and Reference Value for NAVI
Control unit" .
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AV-122
NAVIGATION SYSTEM
Revision: August 20072004 QX56
Vehicle Speed Signal Check for Display Control UnitEKS007M4
1. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect display control unit connector, combination meter connector, NAVI control unit connector and
shift lock control unit connector.
3. Check continuity between display control unit harness connector
M94 terminal 16 (W/R) and combination meter harness connec-
tor M24 terminal 29 (W/R).
4. Check continuity between display control unit harness connector
M94 terminal 16 (W/R) and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair harness.
2. CHECK 1: VEHICLE SPEED SIGNAL
1. Connect display control unit connector.
2. Turn ignition switch ON.
3. Check voltage between display control unit harness connector
M94 terminal 16 (W/R) and ground.
OK or NG
OK >> GO TO 3.
NG >> Replace display control unit. Refer to AV- 1 5 8 , "
Removal
and Installation of Display Control Unit" .
3. CHECK 2: VEHICLE SPEED SIGNAL
1. Connect combination meter connector, NAVI control unit connector and shift lock control unit connector.
2. Drive vehicle at a constant speed.
3. Check signal between display control unit harness connector
M94 terminal 16 (W/R) and ground with CONSULT-ll or oscillo-
scope.
OK or NG
OK >> Replace display control unit. Refer to AV- 1 5 8 , "Removal
and Installation of Display Control Unit" .
NG >> Check combination meter system. Refer to DI-19, "
Vehi-
cle Speed Signal Inspection" . Continuity should exist.
Continuity should not exist.
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Approx. 3.5V or more
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16 (W/R) – Ground : Refer to AV- 9 2 , "Terminals
and Reference Value for Dis-
play Control unit" .
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NAVIGATION SYSTEM
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Illumination Signal Check for NAVI Control UnitEKS007M5
1. CHECK ILLUMINATION SIGNAL
1. Turn the ignition switch ON.
2. Check voltage between NAVI control unit and ground.
OK or NG
OK >> Replace NAVI control unit. Refer to AV-157, "Removal
and Installation of NAVI Control Unit" .
NG >> Check harness for open or short between NAVI control unit and IPDM E/R.
Illumination Signal Check for Display Control Unit EKS007M6
1. CHECK ILLUMINATION SIGNAL
1. Turn ignition switch ON.
2. Check voltage between display control unit and ground.
OK or NG
OK >> Replace display control unit. Refer to AV-158, "Removal
and Installation of Display Control Unit" .
NG >> Check harness for open or short between display control unit and IPDM E/R.
Ignition Signal Check for NAVI Control UnitEKS007M7
1. CHECK IGNITION SIGNAL
1. Disconnect NAVI control unit connector.
2. Turn ignition switch ON.
3. Check voltage between NAVI control unit harness connector
B152 terminal 26 (G/R) and ground.
OK or NG
OK >> Replace NAVI control unit. Refer to AV-157, "Removal
and Installation of NAVI Control Unit" .
NG >> Check harness for open or short between NAVI control
unit and fuse.
Te r m i n a l s
Lighting switch position
(+)
(–)
ConnectorTe r m i n a l
(Wire color)1st or 2nd
positionOFF
B152 25 (R/L) GroundBattery
voltageApprox. 0V
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Te r m i n a l s
Lighting switch position
(+)
(–)
ConnectorTe r m i n a l
(Wire color)1st or 2nd
positionOFF
M94 14 (R/L) GroundBattery
voltageApprox. 0V
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Battery voltage should exist.
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AV-124
NAVIGATION SYSTEM
Revision: August 20072004 QX56
Ignition Signal Check for Display Control UnitEKS007M8
1. CHECK IGNITION SIGNAL
1. Disconnect display control unit connector.
2. Turn ignition switch ON.
3. Check voltage between display control unit harness connector
M94 terminal 12 (G/R) and ground.
OK or NG
OK >> Replace display control unit. Refer to AV- 1 5 8 , "Removal
and Installation of Display Control Unit" .
NG >> Check harness for open or short between display con-
trol unit and fuse.
Reverse Signal Check for NAVI Control UnitEKS007M9
1. CHECK REVERSE LAMP
1. Turn ignition switch ON.
2. Place selector lever into R-position. Do back-up lamps come on?
YES or NO
YES >> GO TO 2.
NO >> Check back-up lamp system. Refer to LT-106, "
BACK-UP LAMP" .
2. CHECK REVERSE SIGNAL
With the selector lever in R-position, check voltage between NAVI
control unit and ground.
OK or NG
OK >> Replace NAVI control unit. Refer to AV- 1 5 7 , "Removal
and Installation of NAVI Control Unit" .
NG >> Check harness for open or short between NAVI control unit and back-up lamp position relay.
Reverse Signal Check for Display Control UnitEKS007MA
1. CHECK REVERSE LAMP
1. Turn ignition switch ON.
2. Place selector lever into R-position. Do back-up lamps come on?
YES or NO
YES >> GO TO 2.
NO >> Check back-up lamp system. Refer to LT-106, "
BACK-UP LAMP" . Battery voltage should exist.
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Te r m i n a l s
Selector lever position
(+)
(–)
ConnectorTe r m i n a l
(Wire color)R-positionOther than R-
position
B152 27 (G/W) Ground Battery voltage Approx. 0V
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NAVIGATION SYSTEM
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2. CHECK REVERSE SIGNAL
With the selector lever in R-position, check voltage between display
control unit and ground.
OK or NG
OK >> Replace display control unit. Refer to AV-158, "Removal
and Installation of Display Control Unit" .
NG >> Check harness for open or short between display control unit and back-up lamp position relay.
AV Communication Line Check (Between Display Control Unit and NAVI Control
Unit)
EKS007MB
1. CHECK POWER SUPPLY AND GROUND CIRCUIT
1. Check power supply and ground circuit for NAVI control unit. Refer to AV- 11 6 , "
Power Supply and Ground
Circuit Check for NAVI Control Unit" .
OK or NG
OK >> GO TO 2.
NG >> Check the malfunctioning parts.
2. CHECK HARNESS
1. Turn ignition switch OFF.
2. Disconnect NAVI control unit connector and display control unit connector.
3. Check continuity between NAVI control unit and display control unit.
4. Check continuity between NAVI control unit and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
Te r m i n a l s
Selector lever position
(+)
(–)
ConnectorTe r m i n a l
(Wire color)R-positionOther than
R-position
M94 6 (GR) Ground Battery voltage Approx. 0V
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Te r m i n a l s
Continuity NAVI control unit Display control unit
ConnectorTe r m i n a l
(Wire color)ConnectorTerminal
(Wire color)
B15244 (L)
M9532 (L)
Ye s
45 (P) 34 (P)
Te r m i n a l s
Continuity NAVI control unit
—
Connector Terminal (Wire color)
B15244 (L)
Ground No
45 (P)
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