can NISSAN TEANA 2003 Service Manual

AV-62
INTEGRATED COLOR DISPLAY SYSTEM

Component DescriptionBKS0027K
DISPLAY CONTROL UNIT

Display control unit draws a status of the audio system and air
conditioner system, a TRIP screen, a FUEL ECONOMY screen,
etc., and transmits the image signals to the display screen.

It receives operation signals of audio system and air conditioner
system from A/C and AV switch, and transmits the operation sig-
nal of audio system to the audio unit through the communication
line and transmits the operation signal of air conditioner system
to the unified meter and A/C amp. through CAN communication.

Display signal from audio unit is transmitted to display control
unit through the communication line, and then the operating
state of the audio system is displayed in the screen.

Display signal from unified meter and A/C amp. is transmitted to
display control unit through the CAN communication, and then the operating state of the air conditioner
system is displayed in the screen.
DISPLAY

Images on the display include RGB image and rear view image
displayed when setting the select lever to R range.

Display control unit controls images on the display.
A/C AND AV SWITCH

A/C and AV switch, an integrated combination of audio system
and air conditioner system switches, are adopted.

Operation signal of audio system is transmitted to the audio unit
through display control unit with the communication line.

Operation signal of air conditioner system is transmitted to uni-
fied meter and A/C amp. through display control unit with CAN
communication.
REAR VIEW CAMERA

Rear view camera transmits rear view image signals to the dis-
play screen through the rear view camera control unit, when
reverse signal is input.

The rear view image is a mirror image reversed left and right
that is the same as seeing rear side with a room mirror.
SKIB0800E
SKIB8808E
SKIB8808E
SKIB0802E

INTEGRATED COLOR DISPLAY SYSTEM
AV-63
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AV

REAR VIEW CAMERA CONTROL UNIT

Rear view camera control unit supplies power to the rear view
camera, and then transmits the rear view image from the rear
view camera to the display screen when reverse signal is input.

Guiding lines of vehicle width and distance from rear end are
composited and displayed on rear view image.
CAN Communication UnitBKS0027L
Refer to LAN-49, "CAN System Specification Chart" .
Component Parts LocationBKS0027M
SKIB0803E
SKIB8809E

INTEGRATED COLOR DISPLAY SYSTEM
AV-77
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Terminals and Reference Value for Display Control UnitBKS0027R
Terminal
(Wire color)
ItemSignal
input/
outputCondition
Reference value
+–Ignition
switchOperation
1 (Y) Ground Battery power supply Input OFF — Battery voltage
2 (L/B) GroundPower supply
(Inverter) Output ON — Approx. 9 V
3 (B) Ground Ground — ON — Approx. 0 V
4 (L/Y) Ground Power supply (Signal) Output ON — Approx. 9 V
5 (P) Ground Ground (Inverter) — ON — Approx. 0 V
6 (G/W) Ground Reverse signal Input ONSelector lever in R position Approx. 12 V
Selector lever except in R
positionApprox. 0 V
7 (R/W) Ground Ground (Signal) — ON — Approx. 0 V
8 (BR/W) GroundCamera-connection
recognition signalInput ONConnected to rear view
camera control unit connec-
torApprox. 0 V
Not connected to rear view
camera control unit connec-
torApprox. 5 V
10 (V) Ground ACC power supply Input ACC — Battery voltage
12 (G) Ground Ignition signal Input ON — Battery voltage
14 (R/L) Ground Illumination signal Input ONLighting switch ON Approx. 12 V
Lighting switch OFF Approx. 0 V
16 (V/W) GroundVehicle speed signal
(8-pulse)Input ONWhen vehicle speed is
approx. 40 km/h (25 MPH)NOTE:
Maximum voltage may be 5 V
due to specifications (connected
units).
25 (L) — CAN-H — — — —
26 (P) — CAN-L — — — —
28 (BR) GroundCommunication
signal (+)Input/
OutputON —
29 — Shield — — — —
30 (Y) GroundCommunication
signal (–)Input/
OutputON —
PKIA1935E
SKIB7378E
SKIB7379E

INTEGRATED COLOR DISPLAY SYSTEM
AV-85
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On Board Self-Diagnosis FunctionBKS0027W
DESCRIPTION

Trouble diagnosis function of system has a self-diagnosis mode by automatic operation and a confirma-
tion mode by manual operation.

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 display.

Confirmation mode displays trouble diagnosis that require an operation and a judgment by a human
(auto-decision cannot be performed by the system), and an error history of system.
DIAGNOSIS ITEM
Mode Description
DCU Failure Diagnosis

Display control unit diagnosis

Analyzes connection between the display control unit and each unit, and operation of
each unit.
DCU
ConfirmationDCUDisplay DiagnosisColor tone and shading of the display control unit-generated image can be checked by
the display of a color bar and a gray scale.
Vehicle SignalDiagnosis of signals that are input to display control unit can be performed for speed sig-
nal, Light, IGN and Reverse.
History of ErrorMalfunctions that occurred in the past are displayed, along with the number of times each
has occurred.
Software Version Software version of each unit is displayed.
HVAC Self-diagnosis of air conditioner system is performed.
CAN Diagnosis The transmitting/receiving of CAN communication can be monitored.

AV-86
INTEGRATED COLOR DISPLAY SYSTEM

OPERATION PROCEDURE
1. Start the engine.
2. Turn the audio system OFF.
3. While pressing the “MUTE” 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.)
4. The initial diagnosis screen is displayed.
5. The item of “DCU Failure Diagnosis” and “DCU Confirmation”
can be selected.

Select each item with “FM” button and “AM” button of A/C and
AV switch, and then determine by “CD·CHG” button.

When pressing “3 RANDOM” button of A/C and AV switch,
return to the previous screen.
SKIB8825E
SKIB0829E
SKIB1985E

INTEGRATED COLOR DISPLAY SYSTEM
AV-87
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Self-Diagnosis ModeBKS0027X
DIAGNOSIS PROCEDURE
1. Select “DCU Failure Diagnosis”.

Self-diagnosis screen is displayed, and then self-diagnosis
starts.

The bar graph visible below self-diagnosis screen displays
progress of the diagnosis.
2. When exiting self-diagnosis, a confirmation screen for unit con-
nection may be displayed.

When judging an optional device as an abnormal connection,
a confirmation screen is displayed to check if the applicable
device is actually equipped. When it is equipped, a screen for
diagnosis results is displayed by selecting the device name
and by selecting “Finish”. (Unequipped units can also be dis-
played by option.)

When optional device is connected normally, the switch of the
device name is not displayed.
3. On the diagnosis results screen, each unit name and connection
line will be colored according to the diagnosis result, as follows.
NOTE:

DCU = Display control unit

SW = A/C and AV switch

If multiple malfunctions occur at the same time for a single
unit, the screen switch colors are determined according to the following order of priority: red > yellow >
gray.

Screen when it is normal
–Between DCU and SW is connected in a gray.
–Between DCU and DISPLAY, DCU and AUDIO, AUDIO and CD-CHG are connected in green.
4. Select a switch on the diagnosis results screen, and comments
for the diagnosis results will be shown.
SKIB0830E
SKIB0831E
Green : No malfunctioning.
Red : Unit is malfunctioning.
Gray : Diagnosis has not been done.
Yellow : Cannot be judged by self-diagnosis results.
SKIB8826E
SKIB0833E

INTEGRATED COLOR DISPLAY SYSTEM
AV-89
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Confirmation ModeBKS0027Y
DIAGNOSIS PROCEDURE
1. Select “DCU Confirmation”.

Each diagnosis is shown by selecting each screen switch on
DCU Confirmation screen.
DCU
Display Diagnosis
Color tone and shading of the display control unit-generated image can be checked by the display of a color
bar and a gray scale.

If RGB signal is malfunctioning, the tint of the color bar display is as follows.
SKIB0834E
R (red) signal error : Light blue (Cyan) tint
G (green) signal error : Purple (Magenta) tint
B (blue) signal error : Yellow tint
SKIB8899E

AV-90
INTEGRATED COLOR DISPLAY SYSTEM

Vehicle Signal
A comparison check can be made of each actual vehicle signal and
the signals recognized by the display control unit.
History of Error
Diagnosis results of self-diagnosis depend on if any error occurred
during the time after selecting “DCU Failure Diagnosis” until self-
diagnosis results is displayed.
Meanwhile, when an error occurs before selecting “DCU Failure
Diagnosis”, and if an error does not occur until self-diagnosis results
is displayed, a diagnosis result is judged as normal.
Consequently, a diagnosis needs to be performed with “History of
Error” for the past error that is not available with self-diagnosis.
“History of Error” stores error occurrences up to 50, and errors after
the 51st are displayed as the 50th.
SKIB0835E
Diagnosis item Display Condition Remarks
Speed SignalON When vehicle speed is more than 0 km/h (0 MPH)
Changes in indication may be delayed.
This is normal. OFF When vehicle speed is 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 position
ReverseON Selector lever in R position
Changes in indication may be delayed.
This is normal. OFF Selector lever in any position other than R position
— Ignition switch in ACC position
SKIB8900E

INTEGRATED COLOR DISPLAY SYSTEM
AV-93
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CAN DIAGNOSIS
The transmitting/receiving of CAN communication can be monitored.
Item Content Error counter
Communication OK / NG 0 - 50
CAN System 1 OK / UNKNW 0 - 50
CAN System 2 OK / UNKNW 0 - 50
CAN System 3 OK / UNKNW 0 - 50
CAN System 4 OK / UNKNW 0 - 50
CAN System 5 OK / UNKNW 0 - 50
CAN System 6 OK / UNKNW 0 - 50
CAN System 7 OK / UNKNW 0 - 50
CAN System 8 OK / UNKNW 0 - 50
CAN System 9 OK / UNKNW 0 - 50
PKIC9893E

AV-94
INTEGRATED COLOR DISPLAY SYSTEM

CONSULT-II Functions (REAR VIEW CAMERA)BKS00281
CONSULT-II can display each diagnosis item using the diagnosis test modes shown following.
CONSULT-II BASIC OPERATION PROCEDURE
Refer to GI-34, "CONSULT-II Start Procedure" .
WORK SUPPORT
Operation Procedure
1. Touch “WORK SUPPORT” on “SELECT DIAG MODE” screen.
2. Touch “SELECT GUIDELINE PATTERN” or “ADJ GUIDELINE POSITION” on “SELECT WORK ITEM”
screen.
For details, refer to AV- 9 5 , "
Vehicle Width and Distance Guiding Line Correction" .
DATA MONITOR
Operation Procedure
1. Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.
2. Touch either “ALL SIGNALS” or “SELECTION FROM MENU” on “SELECT MONITOR ITEM” screen.
3. When “SELECTION FROM MENU” is selected, touch individual items to be monitored. When “ALL SIG-
NALS” is selected, all the items will be monitored.
4. Touch “START”.
5. Touch “RECORD” while monitoring, then the status of the monitored item can be recorded. To stop
recording, touch “STOP”.
Display Item List
Diagnosis partCheck Item,
Diagnosis ModeDescription
REAR VIEW CAMERAWORK SUPPORT It can adjust the vehicle width and distance guiding lines that overlap camera image.
DATA MONITOR Displays input data for rear view camera control unit in real-time.
ECU PART NUMBER Displays rear view camera control unit part number.
Item Description
SELECT GUIDELINE PATTERN The opening of the vehicle width and distance guiding lines can be selected from 2 patterns.
ADJ GUIDELINE POSITION Make fine adjustment to the vehicle width and distance guiding lines upper/lower/left/right
Item Description
ALL SIGNALS Monitors all the signal.
SELECTION FROM MENU Selects and monitors individual items.
Item Description
R POSI SIG [ON/OFF]“ON (Selector lever R position)/OFF (other than R position)” status as judged from the reverse
signal is displayed.