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AV-30 < SYSTEM DESCRIPTION > DIAGNOSIS SYSTEM (AV CONTROL UNIT) 4. Items of “Self Diagnosis” and “Confirmation/Adjustment” can be 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. - The bar graph visible on the center of the self-diagnosis subdivision screen indicates progress of the trou- 2. Diagnosis results are displayed after the self-diagnosis is com- 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. AV-212, "Removal and Installation" . • 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. - The comments of the self-diagnosis results can be viewed with a 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 JSNIA2173ZZ Diagnosis results Unit Connec- tion line Normal Green Green Connection malfunction Gray Yellow Unit malfunction Note Red Green JSNIA3191ZZ JPNIA1787ZZ |