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Display
This performs additional checks on the communication bus between the control unit and the display. In addition, the internal electronics functionality are confirmed.
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When the connection is NG, first check for loose terminals at the navigation unit, navigation display, audio unit connections. Next check for an open or short in the communication line between the navigation unit, navigation display, audio unit. If the line is found to have an open or short, replace the affected shielded harness.
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If the ROM or RAM is NG, replace the navigation display.
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The version represents the software version in the display.
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