ECO mode INFINITI QX56 2007 Factory Repair Manual

NAVIGATION SYSTEM
AV-103
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Confirmation/Adjustment ModeINFOID:0000000003533721
OPERATION PROCEDURE
1. Start the engine.
2. Turn the audio system off.
3. While pressing the “MEMORY 4” button, turn the volume control
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 “BACK” 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.
3When “DVD-ROM error. Please check disc.” is shown.
1. Eject map DVD-ROM and check if it is compatible with the system.
2. Check ejected DVD-ROM for dirt, damage, and warpage.
3. If no error is found, insert a known good map DVD-ROM of the same type and perform self-diag-
nosis again. If same result is shown, the NAVI control unit is malfunctioning. If result is normal, the
map DVD-ROM is malfunctioning.Refer to
AV- 1 2 3
4If “Error found in DVD-ROM or DVD-ROM driver in control unit. Please perform diagnosis in accordance
with service manual” is shown, carry out same inspection as diagnosis No. 3.Refer to
AV- 1 2 3
5GPS antenna system.
1. Visually check for a broken wire in the GPS antenna coaxial cable.
2. Disconnect GPS antenna connector, and make sure approximately 5V is supplied from the NAVI
control unit. If not, the NAVI control unit is malfunctioning. If 5V is supplied, replace the GPS an-
tenna. If the connection is still malfunction after the replacement of the GPS antenna, the NAVI
control unit is malfunctioning.Refer to
AV- 1 2 4
Diagnosis
No.Possible causeReference
page
WKIA4439E
SKIA4207E

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 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.
DISPLAY DIAGNOSIS
• When RGB signal error occurred in the RGB system, tone of the color bar will change as follows.
• When the color of the screen looks unusual, refer to AV-125, "
Color of RGB Image Is Not Proper (Only NAVI
Screen Looks Bluish)", AV-129, "Color of RGB Image Is Not Proper (All Screens Look Reddish)" and AV-
129, "Color of RGB Image Is Not Proper (All Screens Look Yellowish)".
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
lighting switch (normal setting).
• OFF: D (Day mode)
• ON: N (Night mode)
Unless above setting, light signal (ON/OFF) may not be accu-
rately displayed.
SKIA4220E
WKIA4316E
R (red) signal error : Screen looks bluish
G (green) signal error : Screen looks reddish
B (blue) signal error : Screen looks yellowish
WKIA4306E
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

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

NAVIGATION SYSTEM
AV-109
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• 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 fit-
ted on tires.
CAN Diagnostic Support MonitorINFOID:0000000003533722
OPERATION PROCEDURE
1. Start the engine.
2. Turn the audio system off.
3. While pressing the “MEMORY 4” button, turn the volume control
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 “BACK” 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. Select “CAN DIAG SUPPORT MONITOR”.
WKIA4315E
WKIA4439E
SKIA4207E

NAVIGATION SYSTEM
AV-123
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OK >> Inspection End.
NG >> Replace display control unit. Refer to AV-145, "
Removal and Installation".
CAN Communication Line CheckINFOID:0000000003533740
1.CHECK MONITOR DESCRIPTION
1. Start display control unit self-diagnosis. Refer to AV-98, "
Self-
Diagnosis Mode (DCU)".
2. Select “CAN DIAG SUPPORT MONITOR”. Refer to AV-109,
"CAN Diagnostic Support Monitor".
3. Record each item display description (OK/NG/UKNWN) displayed on the following CAN DIAG SUPPORT
MONITOR Check Sheet.
CAN DIAG SUPPORT MONITOR Check Sheet
>> After filling in CAN DIAG SUPPORT MONITOR Check Sheet, GO TO LAN-40.
If NAVI Control Unit Detects That DVD-ROM Map Is Not InsertedINFOID:0000000003533741
1.CHECK DVD-ROM
Make sure identified DVD-ROM map is inserted.
OK or NG
OK >> Replace NAVI control unit. Refer to AV-145, "Removal and Installation".
NG >> Insert identified DVD-ROM map.
If NAVI Control Unit Detects That Inserted DVD-ROM Map Is Malfunctioning or If It Is
Impossible to Load Data from DVD-ROM Map
INFOID:0000000003533742
1.CHECK 1: DVD-ROM
Remove inserted DVD-ROM map to check that it is identified.
OK or NG
OK >> GO TO 2.
NG >> Replace identified DVD-ROM map.
Item content
Error counter
Normal condition Error (Example)
CAN_COMM OK NG 0-50
CAN_CIRC_1 OK UNKWN 0-50
CAN_CIRC_2 OK UNKWN 0-50
CAN_CIRC_3 OK UNKWN 0-50
CAN_CIRC_4 OK UNKWN 0-50
CAN_CIRC_5 OK UNKWN 0-50
CAN_CIRC_6 OK UNKWN 0-50
CAN_CIRC_7 OK UNKWN 0-50
CAN_CIRC_8 OK UNKWN 0-50
CAN_CIRC_9 OK UNKWN 0-50
SKIA4288E
Diagnosis item Screen display Diagnosis item Screen display
CAN_COMM OK NG CAN_CIRC_5 OK UNKWN
CAN_CIRC_1 OK UNKWN CAN_CIRC_6 OK UNKWN
CAN_CIRC_2 OK UNKWN CAN_CIRC_7 OK UNKWN
CAN_CIRC_3 OK UNKWN CAN_CIRC_8 OK UNKWN
CAN_CIRC_4 OK UNKWN CAN_CIRC_9 OK UNKWN

NAVIGATION SYSTEM
AV-137
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Correction = A/B
A: Distance shown on the screen
B: Actual distance
YES or NO
YES >> • If adjustment is insufficient, perform adjustment again.
• If any error is found in the map, please contact map data supplier. Refer to Navigation System
Owner's Manual for contact information.
• Replace NAVI control unit. Refer to AV-145, "
Removal and Installation".
NO >> Limit of the location detection capacity of the navigation system.
Example of Symptom Judged Not MalfunctionINFOID:0000000003533768
BASIC OPERATION
VEHICLE MARK
Symptom Cause Remedy
No image is shown. Display brightness adjustment is set fully to DARK
side.Adjust the display brightness.
No guide sound is heard.
Audio guide volume is too low or
too high.Volume control is set to OFF, MIN or MAX. Adjust the audio guide volume.
Audio guidance is not available while the vehicle is
driving on a dark pink route.System is not malfunctioning.
Screen is too dark.
Motion of the image is too slow.Temperature inside the vehicle is low. Wait until the temperature inside the vehicle
reaches the proper temperature.
Small black or bright spots appear
on the screen.Symptom peculiar to a liquid crystal display (dis-
play unit).System is not malfunction.
Symptom Cause Remedy
Map screen and BIRDVIEW™
Name of the place varies with the
screen.Some thinning of the character data is done to pre-
vent the display becoming to complex. In some
cases and in some locations, the display contents
may differ.
The same place name, street name, etc. may not
be displayed every time on account of the data
processing.System is not malfunctioning.
Vehicle mark is not positioned cor-
rectly.Vehicle is transferred by ferry or by towing after its
ignition switch is turned to OFF.Drive the vehicle for a while in the GPS sat-
ellite signal receiving condition.
Screen will not switch to nighttime
mode after the lighting switch is
turned ON.The daytime screen is selected by the “SWITCH
SCREENS” when the last time the screen dim-
ming setting is done.
Switching between daytime/nighttime screen may
be inhibited by the automatic illumination adjust-
ment function.Perform screen dimming and select the
nighttime screen by “SWITCH SCREENS”.
Map screen will not scroll in accor-
dance with the vehicle travel.Current location is not displayed. Press “MAP” button to display the current lo-
cation.
Vehicle mark will not be shown. Current location is not displayed. Press “MAP” button to display the current lo-
cation.
Accuracy indicator (GPS satellite
mark) on the map screen stays
gray.GPS satellite signal is intercepted because the ve-
hicle is in or behind a building.Move the vehicle out to an open space.
GPS satellite signal cannot be received because
an obstacle is placed on top of the instrument pan-
el.Do not place anything in the center on top of
the display.
GPS satellites are not visible from current location. Wait until GPS satellites are visible by mov-
ing the vehicle.

AV-138
< SERVICE INFORMATION >
NAVIGATION SYSTEM
DESTINATION, PASSING POINTS, AND MENU ITEMS CANNOT BE SELECTED/SET
VOICE GUIDE
Vehicle location accuracy is low. Accuracy indicator (GPS satellite mark) on the
map screen stays gray.Current location is not determined.
Vehicle speed setting by the vehicle speed pulse
has been deviated (advanced or retarded) from
the actual vehicle speed because tire chain is fit-
ted or the system has been used on another vehi-
cle.Drive the vehicle for a while [for approx. 30
minutes at approx. 30 km/h (19 MPH)] and
the deviation will be automatically adjusted. If
advancement or retard still occur, perform
the distance adjustment by CONFIRMA-
TION/ADJUSTMENT mode of diagnosis
function.
Map data has error or omission. (Vehicle mark is
always deviated to the same position.)As a rule, an updated map DVD–ROM will be
released once a year. Symptom Cause Remedy
Symptom Cause Remedy
Destination cannot be set. Destination to be set is on an expressway. Set the destination on an ordinary road.
Passing point is not searched
when re-searching the route.The vehicle has already passed the passing point,
or the system judged so.To include the passing points that have been
passed into the route again, set the route
again.
Route information will not be dis-
played.Route searching has not been done. Set the destination and perform route
searching.
Vehicle mark is not on the recommended route. Drive on the recommended route.
Route guide is turned OFF. Turn route guide ON.
Route information is not available on the dark
green route.System is not malfunctioning.
After the route searching, no guide
sign will appear as the vehicle
goes near the entrance/exit to the
toll road.Vehicle mark is not on the recommended route.
(On the display, only guide signs related to the rec-
ommended route will be shown.)Drive on the recommended route.
Automatic route searching is not
possible.Vehicle is driving on a highway (gray route), or no
recommended route is available.Drive on a road to be searched. Or re–search
the route manually. In this case, however, the
whole route will be searched.
Performed automatic detour
search (or detour search). Howev-
er, the result is the same as that of
the previous search.Performed search with every condition consid-
ered. However, the result is the same as that of the
previous search.System is not malfunctioning.
Passing points cannot be set. More than five passing points were set. Passing points can be set up to five. To stop
at more than five points, perform sharing in
several steps.
When setting the route, the starting
point cannot be selected.The current vehicle location is always set as the
starting point of a route.System is not malfunctioning.
Some menu items cannot be se-
lected.The vehicle is being driven. Stop the vehicle at a safe place and then op-
erate the system.

BCM (BODY CONTROL MODULE)
BCS-5
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Normal status
• When BCM is not in sleep status, OUTPUT terminals (1-5) each turn ON-OFF every 10ms.
Sleep status
• When BCM is in sleep mode, transistors of OUTPUT 1 and 5 stop the output, and BCM enters low-cur-
rent-consumption mode. OUTPUTS (2, 3, and 4) turn ON-OFF at 60ms intervals, and receives lighting
switch input only.
CAN COMMUNICATION CONTROL
CAN communication allows a high rate of information through the two communication lines (CAN-L, CAN-H)
connecting the various control units in the system. Each control unit transmits/receives data, but selectively
reads required data only.
BCM STATUS CONTROL
BCM changes its status depending on the operation status in order to reduce power consumption.
1. CAN communication status
• With ignition switch ON, CAN communicates with other control units normally.
• Control by BCM is being operated properly.
• When ignition switch is OFF, switching to sleep mode is possible.
• Even when ignition switch is OFF, if CAN communication with IPDM E/R and combination meter is
active, CAN communication status is active.
2. Sleep transient status
• This status shuts down CAN communication when ignition switch is turned OFF.
• It transmits sleep request signal to IPDM E/R and combination meter.
• Two seconds after CAN communication of all control units stops, CAN communication switches to inac-
tive status.
3. CAN communication inactive status
• With ignition switch OFF, CAN communication is not active.
• With ignition switch OFF, control performed only by BCM is active.
• Three seconds after CAN communication of all control units stops, CAN communication switches to
inactive status.
4. Sleep status
• BCM is activated with low current consumption mode.
• CAN communication is not active.
WKIA4093E

BCS-16
< SERVICE INFORMATION >
BCM (BODY CONTROL MODULE)
• Check 10A fuse (No. 59, located in the fuse and relay box).
OK or NG
OK >> GO TO 2.
NG >> If fuse is blown, be sure to eliminate cause of malfunction before installing new fuse.
2.CHECK BCM POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM.
3. Check voltage between BCM connectors and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace the harness.
3.CHECK GROUND CIRCUIT
Check continuity between BCM connector M20 terminal 67 and
ground.
OK or NG
OK >> Power supply and ground circuit is OK.
NG >> Repair or replace harness.
CONSULT-II Function (BCM)INFOID:0000000003533602
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
ConnectorTe r m i n a l s
Power
sourceConditionVoltage (V) (Ap-
prox.)
(+) (-)
M1811 GroundACC
power
supplyIgnition
switch
ACC or
ONBattery voltage
38 GroundIgnition
power
supplyIgnition
switch ON
or STARTBattery voltage
M2057 GroundBattery
power
supplyIgnition
switch
OFFBattery voltage
70 GroundBattery
power
supplyIgnition
switch
OFFBattery voltage
LIIA2415E
67 - Ground : Continuity should exist.
LIIA0915E

BL-28
< SERVICE INFORMATION >
POWER DOOR LOCK SYSTEM
Check voltage between BCM connector M18 terminal 37 and
ground.
OK or NG
OK >> Key switch (insert) circuit is OK.
NG >> GO TO 2.
2.CHECK KEY SWITCH (INSERT)
1. Turn ignition switch OFF.
2. Disconnect key switch and key lock solenoid.
3. Check continuity between key switch and key lock solenoid terminals 3, 4.
OK or NG
OK >> Repair or replace harness.
NG >> Replace key switch.
Door Lock/Unlock Switch CheckINFOID:0000000003532906
1.CHECK DOOR LOCK/UNLOCK SWITCH INPUT SIGNAL
With CONSULT-II
Check door lock/unlock switch ("CDL LOCK SW", "CDL UNLOCK SW") in DATA MONITOR mode in CON-
SULT–II. Refer to BL-24, "
CONSULT-II Function (BCM)"
• When door lock/unlock switch is turned to LOCK:
• When door lock/unlock switch is turned to UNLOCK:
Without CONSULT-II
1. Remove key from ignition key cylinder.
2. Check the signal between BCM connector M18 terminal 22 and ground with oscilloscope when door lock/
unlock switch is turned to LOCK or UNLOCK.
3. Make sure the signals which are shown in the figure below can be detected during 10 seconds just after
the door lock/unlock switch is turned to LOCK or UNLOCK.
ConnectorTe r m i n a l s
Condition Voltage (V)
(+) (–)
M18 37 GroundKey is inserted. Battery voltage
Key is removed. 0
LIIA0567E
Terminals Condition Continuity
3 – 4Key is inserted. Yes
Key is removed. No
LIIA1044E
CDL LOCK SW :ON
CDL UNLOCK SW :ON
PIIA6538E