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Home >> Infiniti >> 2017 >> QX50 AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Audio, Visual & Navigation System (BOSE Audio With Navigation) (DTC/Circuit Diagnosis) >> DTC / Circuit Diagnosis >> DTC U121A: Av Control Unit >> DTC Logic
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DTC Logic

DTC Display contents of CONSULT DTC detection condition Possible malfunction factor
U121A HDD WRITE
[U121A]		 AV control unit malfunction is detected. Replace the AV control unit if the malfunction occurs constantly.
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