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AV-398 < DTC/CIRCUIT DIAGNOSIS > [BOSE AUDIO WITH NAVIGATION] U121D AV CONTROL UNIT U121D AV CONTROL UNIT DTC Logic INFOID:0000000009721908 Diagnosis Procedure INFOID:0000000009721909 1. CHECK PLAYBACK OF A DISK (CD) Can a disk (CD) be played? YES >> Malfunction may be detected transitory. NO >> Replace AV control unit. Refer to DTC Display contents of CONSULT DTC detection condition Possible malfunction factor U121D DSP CONN AV control unit malfunction is detected. • If a disc can be played, then there is a possibility of the detection of a • Replace the AV control unit if the malfunction occurs constantly. . |