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Home >> Infiniti >> 2016 >> QX50 RWD >> Repair and Diagnosis >> Accessories & Equipment >> Entertainment Systems >> Audio, Visual & Navigation System (BOSE Audio With Navigation) (Diagnostic Trouble Codes (DTCS) B272C-U1310 And Circuit Diagnosis) >> DTC/Circuit Diagnosis >> DTC U121B: Av Control Unit >> DTC Logic

DTC Logic

DTC Display contents of CONSULT DTC detection condition Possible malfunction factor
U121B HDD COMM
[U121B]		 AV control unit malfunction is detected. Replace the AV control unit if the malfunction occurs constantly.
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