2008 NISSAN TEANA Ccu

AV-62
< FUNCTION DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
2. Diagnosis results are displayed after the self-diagnosis is com-
pleted. The unit names and the connection lines are color-coded
according to the diagnostic results.
NOTE:
 Only the control unit (AV control unit) is displayed in red.
 Replace AV control unit if “Self-Diagnosis did not run because of a control unit malfunction” is indicated.
The symptom is AV control unit internal error. Refer to AV-170, "
Removal and Installation".
- If multiple errors occur at the same time for a single unit, the screen switch colors are determined accord-
ing to the following order of priority: red > yellow > gray.
- The comments of the self-diagnosis results can be viewed with a
component in the diagnosis result screen.
SELF-DIAGNOSIS RESULTS
 The self-diagnosis mode allows the technician to diagnose the connection in the communication line
between AV control unit and each unit and the internal operation of the AV control unit.
 Because the start condition of diagnosis function is a switch operation, the on board diagnosis function can-
not be started up if any malfunction is detected in the communication circuit between AV control unit and
multifunction switch.
 Check the applicable display in the following table, and then repair the malfunctioning parts.
Self-diagnosis Result Chart
Diagnosis results UnitCon-
nection
line
Normal Green Green
Connection malfunction Gray Yellow
Unit malfunction
NoteRed GreenJSNIA1435GB
JSNIA0141GB
Area with yellow connection lines DescriptionPossible malfunction location / Action
to take
NOTE:
When a control unit malfunction is detected (red in
unit display), connection malfunctions with other
connection unit may be displayed.Malfunction is detected in AV control
unit power supply and ground circuitsCheck AV control unit power supply
and ground circuits. When detecting
no malfunction in those components,
replace AV control unit.
“Self-Diagnosis did not run because of a control unit
malfunction”
JSNIA1436GB

AV
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
AV-65
< FUNCTION DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
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The self-diagnosis results are judged depending on whether any error occurs from when “Self-diagnosis” is
selected until the self-diagnosis results are displayed.
However, the diagnosis results are judged normal if an error has occurred before the ignition switch is turned
ON and then no error has occurred until the self-diagnosis start. Check the “Error Record” to detect any error
that may have occurred before the self-diagnosis start because of this situation.
The error record displays the time and place of the most recent occurrence of that error. However, take note of
the following points.
 Place of the error occurrence is represented by the position of the current location mark at the time an error
occurred. If current location mark has deviated from the correct position, then the place of the error occur-
rence cannot be located correctly.
 The frequency of occurrence is displayed in a count up manner. The actual count up method differs depend-
ing on the error item.
Count up method A
 The counter resets to 0 if an error occurs when IGN switch is turned ON. The counter increases by 1 if the
condition is normal at a next IGN ON cycle.
 The counter upper limit is 39. Any counts exceeding 39 are ignored.“ The counter can be reset (no error
record display) with the “Delete log” switch or CONSULT-III.
Count up method B
 The counter increases by 1 if an error occurs when IGN switch is ON. The counter will not decrease even if
the condition is normal at the next IGN ON cycle.
 The counter upper limit is 50. Any counts exceeding 50 are ignored. “ The counter can be reset (no error
record display) with the “Delete log” switch or CONSULT-III.
Error item
Some error items may be displayed simultaneously according to the cause. If some error items are displayed
simultaneously, the detection of the cause can be performed by the combination of display items
Display type of occur-
rence frequencyError history display item
Count up method A CAN communication line, control unit (CAN), AV communication line, control unit (AV communication)
Count up method B Other than the above
JSNIA0151GB
Error item Description Possible malfunction factor/Action to take
CAN COMM CIRCUITCAN communication malfunction is detect-
ed.Perform diagnosis with CONSULT-III, and
then repair the malfunctioning parts accord-
ing to the diagnosis results.

AV
U1300 AV COMM CIRCUIT
AV-81
< COMPONENT DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
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U1300 AV COMM CIRCUIT
DescriptionINFOID:0000000003882731
U1300 is indicated when malfunction occurs in communication signal of multi AV system. Indicated simulta-
neously, without fail, with the malfunction of control units connected to AV control unit with communication line.
Determine the possible malfunction cause from the table below.
Self-diagnosis results display item
DTCDisplay contents of
CONSULT-IIIDescriptionPossible malfunction factor/Action to
take
U1300
U1240 AV COMM CIRCUIT
[U1300]
 SWITCH CONN
[U1240]When either one of the following items is detected:
 multifunction switch power supply and ground circuits
are malfunctioning.
 AV communication circuits between AV control unit and
multifunction switch are malfunctioning.
 AV communication signal between AV control unit and
multifunction switch is malfunctioning. Multifunction switch power supply
and ground circuits
Refer toAV- 8 3 , "
MULTIFUNCTION
SWITCH : Diagnosis Procedure".
 AV communication circuits be-
tween AV control unit and multi-
function switch
U1300
U1252 AV COMM CIRCUIT
[U1300]
 REAR-CAMERA LAN
CONN [U1252]With rear control switch
When either one of the following items is detected:
 camera control unit power supply and ground circuits
are malfunctioning.
 AV communication signal between AV control unit and
camera control unit is malfunctioning.
 AV communication circuits between multifunction
switch and rear control switch are malfunctioning.
 AV communication circuits between rear control switch
and camera control unit are malfunctioning. Camera control unit power supply
and ground circuits
Refer to AV- 8 4 , "
CAMERA CON-
TROL UNIT : Diagnosis Proce-
dure".
 AV communication circuits be-
tween multifunction switch and rear
control switch
 AV communication circuits be-
tween rear control switch and cam-
era control unit
Without rear control switch
When either one of the following items is detected:
 camera control unit power supply and ground circuits
are malfunctioning.
 malfunction is detected in AV communication circuits
between multifunction switch and camera control unit.
 AV communication signal between AV control unit and
multifunction switch is malfunctioning. Camera control unit power supply
and ground circuits
Refer to AV- 8 4 , "
CAMERA CON-
TROL UNIT : Diagnosis Proce-
dure".
 AV communication circuits be-
tween multifunction switch and
camera control unit
U1300
U1240
U1252 AV COMM CIRCUIT
[U1300]
 SWITCH CONN
[U1240]
 REAR-CAMERA LAN
CONN [U1252]When either one of the following items is detected:
 AV communication circuits between AV control unit and
multifunction switch are malfunctioning.
 AV communication signal between AV control unit and
multifunction switch is malfunctioning.AV communication circuits between
AV control unit and multifunction
switch

AV
NORMAL OPERATING CONDITION
AV-167
< SYMPTOM DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
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NORMAL OPERATING CONDITION
DescriptionINFOID:0000000003882786
BASIC OPERATIONS
RELATED TO AUDIO
 The majority of the audio malfunctions are the result of outside causes (bad CD/cassette, electromagnetic
interference, etc.). Check the symptoms below to diagnose the malfunction.
 The vehicle itself can be a source of noise if noise prevention parts or electrical equipment is malfunctioning.
Check if noise is caused and/or changed by engine speed, ignition switch turned to each position, and oper-
ation of each piece of electrical equipment, and then determine the cause.
NOTE:
 CD-R is not guaranteed to play because they can contain compressed audio (MP3, WMA) or could be incor-
rectly mastered by the customer on a computer.
 Check if the CDs carry the Compact Disc Logo. If not, the disc is not mastered to the red book Compact Disc
Standard and may not play.
Symptom Possible cause Possible solution
No image is displayed.The brightness is at the lowest setting. Adjust the brightness of the display.
The system in the video mode. Push to change the mode.
The display is turned off. Push to turn on the display.
The screen is too dim. The move-
ment is slow.The temperature in the interior of the vehicle is low. Wait until the interior of the vehicle has
warmed up.
Some pixels in the display are dark-
er or brighter than others.This condition is an inherent characteristic of liquid
crystal displays.This is not a malfunction.
Some menu items cannot be se-
lected.Some menu items become unavailable while the ve-
hicle is driven.Park the vehicle in a safe location, and
then operate the multi AV system.
Symptom Cause and Counter measure
Cannot playCheck if the CD was inserted correctly.
Check if the CD is scratched or dirty.
Check if there is condensation inside the player, and if there is, wait until the condensation is gone
(about 1 hour) before using the player.
If there is a temperature increase error, the player will play correctly after it returns to the normal
temperature.
If there is a mixture of music CD files (CD-DA data) and MP3/WMA files on a CD, only the music
CD files (CD-DA data) will be played.
Files with extensions other than “.MP3”, “.WMA”, “.mp3”, or “.wma” cannot be played. In addition,
the character codes and number of characters for folder names and file names should be in com-
pliance with the specifications.
Check if the disc or the file is generated in an irregular format, This may occur depending on the
variation or the setting of MP3/WMA writing applications or other text editing applications.
Check if the finalization process, such as session close and disc close, is done for the disc.
Check if the CD is protected by copyright.
Poor sound quality Check if the CD is scratched or dirty.
It takes a relatively long time before
the music starts playing.If there are many folder or file levels on the MP3/WMA CD, or if it is a multisession disc, some
time may be required before the music starts playing.
Music cuts off or skipsThe writing software and hardware combination might not match, or the writing speed, writing
depth, writing width might not match the specifications. Try using the slowest writing speed.
Skipping with high bit rate files Skipping may occur with large quantities if data such as for high bit rate data.

AV-168
< SYMPTOM DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
NORMAL OPERATING CONDITION
Noise resulting from variations in field strength, such as fading noise and multi-path noise, or external noise from trains and other
sources, is not a malfunction.
NOTE:
 Fading noise: This noise occurs because of variations in the field strength in a narrow range due to mountains or buildings blocking
the signal.
 Multi-path noise: This noise results from a time difference between the broadcast waves directly from the station arriving at the
antenna and the waves reflected by mountains or buildings. Move immediately to the next song
when playingWhen a non-MP3/WMA file has been given an extension of “.MP3”, “.WMA”, “.mp3”, or “.wma”,
or when play is prohibited by copyright protection, the player will skip to the next song.
The songs do not play back in the
desired order.The playback order is the order in which the files were written by the software, so the files might
not play in the desired order. Symptom Cause and Counter measure

AV
DIAGNOSIS AND REPAIR WORKFLOW
AV-185
< BASIC INSPECTION >[BOSE AUDIO WITHOUT NAVIGATION]
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BASIC INSPECTION
DIAGNOSIS AND REPAIR WORKFLOW
Work FlowINFOID:0000000003765632
OVERALL SEQUENCE
 Reference 1··· Refer to AV- 2 11 , "CONSULT-III Function (MULTI AV)".
 Reference 2··· Refer to AV-284, "
DTC Index".
 Reference 3··· Refer to AV-372, "
Symptom Table".
DETAILED FLOW
1.INTERVIEW AND SYMPTOM CONFIRMATION
Check the malfunction symptoms by performing the following items.
 Interview the customer to obtain the malfunction information (conditions and environment when the malfunc-
tion occurred).
 Check the symptom.
Is the occurred symptom malfunction?
YES >> GO TO 2.
NO >> INSPECTION END
2.DIAGNOSIS WITH CONSULT-III
JSNIA0732GB

AV-186
< BASIC INSPECTION >[BOSE AUDIO WITHOUT NAVIGATION]
DIAGNOSIS AND REPAIR WORKFLOW
1. Connect CONSULT-III and perform a self-diagnosis for “MULTI AV”. Refer to AV- 2 11 , "CONSULT-III Func-
tion (MULTI AV)".
NOTE:
Skip to step 4 of the diagnosis procedure if “MULTI AV” is not displayed.
2. Check if any DTC is displayed in the self-diagnosis results.
Is DTC displayed?
YES >> GO TO 3.
NO >> GO TO 4.
3.TROUBLE DIAGNOSIS FOR DTC
1. Check the DTC indicated in the self-diagnosis results.
2. Perform the relevant diagnosis referring to the DTC Index. Refer to AV-284, "
DTC Index".
>> GO TO 5.
4.TROUBLE DIAGNOSIS FOR SYMPTOMS
Perform the relevant diagnosis referring to the diagnosis chart by symptom. Refer to AV-372, "
Symptom
Table".
>> GO TO 5.
5.ERROR PART REPAIR
1. Repair or replace the identified malfunctioning parts.
2. Perform a self-diagnosis for “MULTI AV” with CONSULT-III.
NOTE:
Erase the stored self-diagnosis results after repairing or replacing the relevant components if any DTC
has been indicated in the self-diagnosis results.
3. Check that the symptom does not occur.
Does the symptom occur?
YES >> GO TO 1.
NO >> INSPECTION END

AV
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
AV-201
< FUNCTION DIAGNOSIS >[BOSE AUDIO WITHOUT NAVIGATION]
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NOTE:
*:On-board self-diagnosis is not supported. Only CONSULT-III is supported.
STARTING PROCEDURE
1. Start the engine.
2. Turn the audio system OFF.
3. While pressing the “SETTING” button, turn the volume control
dial clockwise or counterclockwise for 40 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 trouble diagnosis initial screen is displayed, and then the
items of “Self Diagnosis” and “Confirmation/Adjustment” can be
selected.
SELF-DIAGNOSIS MODE
1. Start the self-diagnosis function and select “Self Diagnosis”.
- Self-diagnosis subdivision screen is displayed, and the self-diagnosis mode starts.
- The bar graph visible on the center of the self-diagnosis subdivision screen indicates progress of the trou-
ble diagnosis.
Confirmation/
AdjustmentDisplay DiagnosisThe following check functions are available: color tone check by color
bar display, light and shade check by grey scale display and touch panel
calibration response check.
Vehicle SignalsDiagnosis of signals can be performed for vehicle speed, parking brake,
lights, ignition switch, and reverse.
Speaker Test The connection of a speaker can be confirmed by test tone.
Climate Control
*Not used.
Error HistoryThe system malfunction and the frequency when occurred in the past are
displayed. When the malfunctioning item is selected, the time and place
that the selected malfunction last occurred are displayed.
Camera Cont.It can perform the confirmation of a signal connection to the camera con-
trol unit, the calibration of each camera, Correct Draw Line of Camera
Image, and Fine Tuning of Birds-Eye View.
Refer to AV- 2 0 0 , "
Diagnosis Description".
Vehicle CAN Diagnosis The transmitting/receiving of CAN communication can be monitored.
AV COMM DiagnosisThe communication condition of each unit of Multi AV system can be
monitored.
Delete Unit Connection Log Erase the connection history of unit and error history.
Initialize Settings Initializes the AV control unit memory.Mode Description
JSNIA1285GB
JSNIA0138GB