Infiniti FX35, FX50 (S51). Manual - part 101
AV
DIAGNOSIS SYSTEM (AV CONTROL UNIT)
AV-177
< SYSTEM DESCRIPTION >
[NAVIGATION (SINGLE MONITOR)]
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1.
Start the self-diagnosis function and select “Self Diagnosis”.
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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:
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
.
• If multiple errors occur at the same time for a single unit, the screen switch
colors are determined according to the following order of priority: red > gray.
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The comments of the self-diagnosis results can be viewed with a
component in the diagnosis result screen.
Detection Range of Self-diagnosis Mode
• 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.
SELF-DIAGNOSIS RESULTS
Check the applicable display at the following table, and then repair the malfunctioning parts.
Only Unit Part Is Displayed In Red.
Diagnosis results
Unit
Connec-
tion line
Normal
Green
Green
Connection malfunction
Gray
Yellow
Unit malfunction
Note
Red
Green
JSNIA2496ZZ
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.