display NISSAN TEANA 2008 Workshop Manual

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-63
< FUNCTION DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
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CONFIRMATION/ADJUSTMENT MODE
1. Start the diagnosis function and select “Confirmation/Adjustment”. The confirmation/adjustment mode
indicates where each item can be checked or adjusted.
2. Select each switch on the “Confirmation/Adjustment Mode”
screen to display the relevant trouble diagnosis screen. Press
the “BACK” switch to return to the initial Confirmation/Adjust-
ment Mode screen.
Display Diagnosis
Malfunction is detected in camera con-
nection recognition signal circuit.Camera connection recognition signal
circuit.
When either one of the following
items is detected:
 rear control switch power supply and
ground circuits are malfunctioning.
 AV communication signal between
AV control unit and rear control
switch is malfunctioning.
 malfunction is detected in AV com-
munication circuits between AV con-
trol unit and multifunction switch. Rear control switch power supply
and ground circuits.
 AV communication circuits between
AV control unit and multifunction
switch. Area with yellow connection lines DescriptionPossible malfunction location / Action
to take
JSNIA1437GB
JSNIA1438GB
JSNIA0147GB
JSNIA0688GB

AV-64
< FUNCTION DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
The tint of the color bar indication is as per the following list if RGB signal error is detected.
Vehicle Signals
A comparison check can be made of each actual vehicle signal and
the signals recognized by the system.
Speaker Test
Select “SPEAKER DIAGNOSIS” to display the Speaker Diagnosis
screen. Press “START and NEXT” to generate a test tone in a
speaker. Press “Start” to generate a test tone in the next speaker.
Press “End” to stop the test tones.
NOTE:
The frequency of test tone emitted from each speaker is as follows.
Climate Control
On-board self-diagnosis is not supported. Only CONSULT-III is supported.
Refer to HAC-156, "
WITHOUT INTELLIGENT AIR CONDITIONER SYSTEM : CONSULT-III Function"for
details.
Camera Cont.
Refer to AV-56, "System Description".
Error History
R (red) signal error : Light blue (Cyan) tint
G (green) signal error : Purple (Magenta) tint
B (blue) signal error : Yellow tint
JSNIA0149GB
Diagnosis item Display Vehicle status Remarks
Vehicle speedON Vehicle speed > 0 km/h (0 MPH)
Changes in indication may be delayed by approximately
1.5 seconds. This is normal. OFF Vehicle speed = 0 km/h (0 MPH)
Parking brakeON Parking brake is applied.
OFF Parking brake is released.
LightsON Light switch ON
Block the light beam from the auto light optical sensor.
OFF Light switch OFF
IgnitionON Ignition switch ON
—
OFF Ignition switch in ACC position
ReverseONShift the selector lever to “R” posi-
tion
Changes in indication may be delayed by approximately
1.5 seconds. This is normal.
OFFShift the selector lever other than
“R” position
Squawker : 3 kHz
Front speaker : 300 Hz
Rear speaker : 1 kHz
JSNIA0150GB

AV
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
AV-65
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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-66
< FUNCTION DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
CONTROL UNIT (CAN)CAN initial diagnosis malfunction is detect-
ed.
Replace the AV control unit. CONTROL UNIT (AV)AV communication circuit initial diagnosis
malfunction is detected.
FLASH-ROM Error Of Control Unit
AV control unit malfunction is detected.
CAN Controller Memory Error
Front Display Connection ErrorWhen either one of the following items is
detected:
 display unit power supply and ground cir-
cuits are malfunctioning.
 serial communication circuits between
display unit and AV control unit are mal-
functioning.
 serial communication signal between
display unit and AV control unit is mal-
functioning. Display unit power supply and ground
circuits
 Serial communication circuits between
display unit and AV control unit
Camera Cont. Unit Connection ErrorCamera connection recognition signal cir-
cuits malfunction is detected.Camera connection recognition signal cir-
cuit
AV COMM CIRCUITRear control switch power supply and
ground circuits malfunction are detected.Rear control switch power supply and
ground circuits.
 AV COMM CIRCUIT
 Switches Connection ErrorWhen 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
 AV communication circuits between AV
control unit and multifunction switch Error item Description Possible malfunction factor/Action to take

AV
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
AV-67
< FUNCTION DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
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P Vehicle CAN Diagnosis
 CAN communication status and error counter is displayed.
 The error counter displays “OK” if any malfunction was not
detected in the past and displays “0” if a malfunction is detected. It
increases by 1 if the condition is normal at the next ignition switch
ON cycle. The upper limit of the counter is 39.
 The error counter is erased if reset.
AV COMM Diagnosis
 AV COMM CIRCUIT
 Rear view Camera connection ErrorWith 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 mul-
tifunction 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
 AV communication circuits between mul-
tifunction switch and rear control switch
 AV communication circuits between rear
control switch and camera 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.
 AV communication circuits between AV
control unit and camera control unit is
malfunctioning.
 AV communication signal between AV
control unit and camera control unit is
malfunctioning.  Camera control unit power supply and
ground circuits
 AV communication circuits between mul-
tifunction switch and camera control unit
 AV COMM CIRCUIT
 Switches Connection Error
 Rear view Camera connection ErrorWhen 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 Error item Description Possible malfunction factor/Action to take
Items Display (Current)Malfunction counter
(Past)
Tx (HVAC) OK / UNKWN OK / 0 – 39
Rx (ECM) OK / UNKWN OK / 0 – 39
Rx (Cluster) OK / UNKWN OK / 0 – 39
Rx (BCM) OK / UNKWN OK / 0 – 39
Rx (HVAC) OK / UNKWN OK / 0 – 39
Rx (USM) OK / UNKWN OK / 0 – 39
JSNIA1287GB

AV-68
< FUNCTION DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
 Displays the communication status between AV control unit (mas-
ter unit) and each unit.
 The error counter displays “OK” if any malfunction was not
detected in the past and displays “0” if a malfunction is detected. It
increases by 1 if the condition is normal at the next ignition switch
ON cycle. The upper limit of the counter is 39.
 If it resets, the error counter is erased.
Delete Unit Connection Log
Deletes any unit connection records and error records from the AV
control unit memory. (Clear the records of the unit that has been
removed)
CONSULT-III Function (MULTI AV)INFOID:0000000003882712
CONSULT-III FUNCTIONS
CONSULT-III performs the following functions via the communication with the AV control unit.
AV COMMUNICATION
When “AV communication” of “CAN Diag Support Monitor” is selected, the following function will be performed.
SELF-DIAGNOSIS RESULTS
 In CONSULT-III self-diagnosis, self-diagnosis results and error history are displayed collectively.
 The timing is displayed as “0” if any of the error codes [U1000], [U1010], [U1300] and [U1310] is detected.
The counter increases by 1 if the condition is normal at the next ignition switch ON cycle.
Self-diagnosis Results Display Item
ItemsStatus
(Current)Counter
(Past)
C Tx(ITM–SW) OK / UNKWN OK / 0 – 39
C Rx(PrimarySW–ITM) OK / UNKWN OK / 0 – 39
C Rx(RrSeatSW–ITM) OK / UNKWN OK / 0 – 39
C Rx(RearCamera–ITM) OK / UNKWN OK / 0 – 39
JSNIA1439GB
JSNIA0154GB
Diagnosis mode Description
Ecu Identification The part number of AV control unit can be checked.
Self Diagnostic ResultPerforms a diagnosis on the AV control unit and a connection diagnosis for the communication
circuit of the Multi AV system, and displays the current and past malfunctions collectively.
Data Monitor The diagnosis of vehicle signal that is input to the AV control unit can be performed.
AV communicationAV&NAVI C/UDisplays the communication status from AV control unit to each unit as well as the error
counter.
AUDIO Displays the AV control unit communication status and the error counter.
Error item Detection logic Possible malfunction factor/Action to take
CAN COMM CIRCUIT [U1000]CAN communication malfunction is detect-
ed.Refer to AV- 7 2 , "
DiagnosisProcedure".

AV
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
AV-69
< FUNCTION DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
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CONTROL UNIT (CAN) [U1010]CAN initial diagnosis malfunction is detect-
ed.
Replace the AV control unit.
Refer to AV- 1 7 0 , "
Removal and Installa-
tion". CONTROL UNIT (AV) [U1310]AV communication circuit initial diagnosis
malfunction is detected.
Control Unit FLASH-ROM [U1200]
AV control unit malfunction is detected.
CAN CONT [U1216]
FRONT DISP CONN [U1243]When either one of the following items is
detected:
 display unit power supply and ground cir-
cuits are malfunctioning.
 serial communication circuits between
display unit and AV control unit are mal-
functioning.
 serial communication signal between
display unit and AV control unit is mal-
functioning. Display unit power supply and ground
circuits
Refer to AV- 8 2 , "
DISPLAY UNIT : Diag-
nosis Procedure".
 Serial communication circuits between
display unit and AV control unit
CAMERA CONT. CONN [U1250]A malfunction is detected in camera con-
nection recognition signal circuit.Camera connection recognition signal cir-
cuit
Refer to AV- 7 9 , "
Diagnosis Procedure".
 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 to AV- 8 3 , "
MULTIFUNCTION
SWITCH : Diagnosis Procedure".
 AV communication circuits between AV
control unit and multifunction switch Error item Detection logic Possible malfunction factor/Action to take

AV-70
< FUNCTION DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
DATA MONITOR
ALL SIGNALS
 Displays the status of the following vehicle signals inputted to the AV control unit.
 For each signal, actual signal can be compared with the condition recognized on the system.
SELECTION FROM MENU
 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 mul-
tifunction 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 CONTROL
UNIT : Diagnosis Procedure".
 AV communication circuits between mul-
tifunction switch and rear control switch
 AV communication circuits between rear
control switch and camera 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.
 AV communication circuits between AV
control unit and camera control unit is
malfunctioning.
 AV communication signal between AV
control unit and camera control unit is
malfunctioning.  Camera control unit power supply and
ground circuits
Refer to AV- 8 4 , "
CAMERA CONTROL
UNIT : Diagnosis Procedure".
 AV communication circuits between mul-
tifunction switch and camera control unit
 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 Error item Detection logic Possible malfunction factor/Action to take
Display Item Display Vehicle status Remarks
VHCL SPD SIGOn Vehicle speed >0 km/h (0 MPH)
Changes in indication may be delayed. This is
normal. Off Vehicle speed =0 km/h (0 MPH)
PKB SIGOn Parking brake is applied.
Off Parking brake is released.
ILLUM SIGOnBlock the light beam from the auto
light optical sensor when the light
switch is ON .
—
OffExpose the auto light optical sensor
to light when the light switch is OFF
or ON.
IGN SIGOn Ignition switch ON
Off Ignition switch in ACC position
REV SIGOn Selector lever in R position
Changes in indication may be delayed. This is
normal.
OffSelector lever in any position other
than R

AV
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
AV-71
< FUNCTION DIAGNOSIS >[BASE AUDIO AND DISPLAY SYSTEM]
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Allows the technician to select which vehicle signals should be displayed and displays the status of the
selected vehicle signals.
Item to be selected Description
VHCL SPD SIG
The same as when “ALL SIGNALS”
is selected. PKB SIG
ILLUM SIG
IGN SIG
REV SIG