LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Infiniti >> 2015 >> QX50 Base, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Audio, Visual & Navigation System (BOSE Audio With Navigation) (Diagnostic Trouble Codes (DTCS) Symptom Tests And Component R&R) >> DTC/Circuit Diagnosis >> DTC U121A: Av Control Unit >> DTC Logic
April 5, 2026: LEMON Manuals is launched! Read the announcement.

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.
scientia non olet · About LEMON Manuals