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Nissan GT-R. Manual - part 7
AV
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
AV-23
< SYSTEM DESCRIPTION >
[BASE AUDIO WITH NAVIGATION]
C
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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.
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The bar graph visible on the center of the self-diagnosis subdivision screen indicates progress of the trou-
ble diagnosis.
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 con-
trol unit internal error. Refer to
AV-77, "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 > gray.
-
The comments of the self-diagnosis results can be viewed with a
component in the diagnosis result screen.
SELF-DIAGNOSIS RESULTS
Check the applicable display at the following table, and then repair the malfunctioning parts.
Only Unit Part Is Displayed In Red.
JSNIA2173ZZ
Diagnosis results
Unit
Con-
nection
line
Normal
Green
Green
Connection malfunction
Gray
Yellow
Unit malfunction
Note
Red
Green
JSNIA2486ZZ
JPNIA1787ZZ
Screen switch
Description
Possible malfunction location / Action to
take
Control unit
Malfunction is detected in AV control unit
power supply and ground circuits.
Check AV control unit power supply and
ground circuits. When detecting no mal-
function in those components, replace AV
control unit.