Nissan Leaf. Manual — part 29
AV
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
AV-107
< SYSTEM DESCRIPTION >
[AUDIO W/O NAVI (FOR MEXICO)]
C
D
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F
G
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A
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Steering Angle Adjustment
• The steering angle output is adjusted.
Error location display
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 power 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 power switch is turned ON. The counter increases by 1 if the
condition is normal at a next power 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.
Diagnosis item
Display
Vehicle status
Remarks
Vehicle speed
ON
Vehicle speed > 0 km/h (0 MPH)
Changes in indication may be delayed. This is normal.
OFF
Vehicle speed = 0 km/h (0 MPH)
Parking brake
ON
Parking brake is applied.
OFF
Parking brake is released.
Lights
ON
Block the light beam from the auto
light optical sensor when the light
switch is ON.
—
OFF
Either of the following conditions
• Lighting switch OFF
• Expose the auto light optical sen-
sor to light when the light switch
is ON.
Power button
ON
Power button ON
—
OFF
Power button in ACC position
Reverse
ON
Shift the selector lever to “R” posi-
tion
Changes in indication may be delayed. This is normal.
OFF
Shift the selector lever other than
“R” position
JSNIA3765ZZ
Display type of occur-
rence frequency
Error history display item
Count up method A
CAN communication line, control unit (CAN), AV communication line, control unit (AV)
AV-108
< SYSTEM DESCRIPTION >
[AUDIO W/O NAVI (FOR MEXICO)]
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
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
AV COMM Diagnosis
AWNIA3448ZZ
Error item
Description
Possible malfunction factor/Action to take
CAN COMM CIRCUIT
CAN communication malfunction is detect-
ed.
Perform diagnosis with CONSULT, and
then repair the malfunctioning parts accord-
ing to the diagnosis results.
Refer to
CONTROL UNIT (CAN)
CAN initial diagnosis malfunction is detect-
ed.
Replace the AV control unit if the malfunc-
tion occurs constantly.
Refer to
AV-192, "Removal and Installa-
.
CONTROL UNIT (AV)
AV communication circuit initial diagnosis
malfunction is detected.
Control Unit Internal Error
AV control unit malfunction is detected.
Switch Initial Communication Error
AV control unit or multifunction switch inter-
nal malfunction are detected.
Replace the AV control unit or multifunction
switch if the malfunction occurs constantly.
Refer to
AV-192, "Removal and Installation"
(multifunction switch).
Steer. Angle Sensor Calibration
Predictive course line center position ad-
justment of the steering angle sensor is in-
complete.
Adjust the predictive course line center po-
sition of the steering angle sensor.
Refer to
USB electric current error
Detection of overcurrent in USB connector.
Check USB harness between the AV con-
trol unit and USB connector.
• AV COMM CIRCUIT
• Switches Connection Error
When either one of the following items are
detected:
• multifunction switch power supply and
ground circuits are malfunctioning.
• AV communication circuits between AV
control unit and multifunction switch are
malfunctioning.
• Multifunction switch power supply and
ground circuits.
• AV communication circuits between AV
control unit and multifunction switch.
AV
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
AV-109
< SYSTEM DESCRIPTION >
[AUDIO W/O NAVI (FOR MEXICO)]
C
D
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• 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 power switch
ON cycle. The upper limit of the counter is 39.
• The error counter is erased if “Reset” is pressed.
NOTE:
“???” indicates UNKWN
Hands-Free Phone
The hands-free phone reception volume adjustment and microphone
and speaker test functions are also available.
NOTE:
If voice cannot be output when the Voice Microphone Test is started,
stop and restart the test again.
Clock Setting
The clock can be set.
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.)
User Data Initialization
Items
Status
(Current)
Counter
(Past)
C Tx(ITM–PrimarySW)
OK / ???
OK / 0 – 39
C Rx(PrimarySW–ITM)
OK / ???
OK / 0 – 39
JSNIA3770ZZ
JSNIA3771ZZ
JSNIA3773ZZ
AWNIA3449ZZ
AV-110
< SYSTEM DESCRIPTION >
[AUDIO W/O NAVI (FOR MEXICO)]
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
Initializes the AV control unit memory.
Version Information
Version information of the AV control unit is displayed.
Software Update
Software version of the AV control unit can be update.
For detail of the operation, refer to
(AV CONTROL UNIT) : Work Procedure"
.
CONSULT Function
INFOID:0000000010385199
CONSULT FUNCTIONS
CONSULT performs the following functions via communication with the AV control unit.
ECU IDENTIFICATION
The part number of AV control unit is displayed.
SELF DIAGNOSTIC RESULT
JSNIA3776ZZ
JSNIA3777ZZ
AWNIA3450ZZ
Direct Diagnostic Mode
Description
Ecu Identification
The AV control unit part number is displayed.
Self Diagnostic Result
The AV control unit self diagnostic results are displayed.
Data Monitor
The AV control unit input/output data is displayed in real time.
Work support
The settings for AV control unit functions can be changed.
Configuration
• The vehicle specification can be read and saved.
• The vehicle specification can be written when replacing AV control unit.
CAN Diag Support Mntr
• The result of transmit/receive diagnosis of AV communication is displayed.
• The result of transmit/receive diagnosis of CAN communication is displayed.
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