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Home >> Infiniti >> 2011 >> G37 Base, 2D Convertible >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Audio System, Visual System & Navigation System (BOSE Audio With Navigation) -- G37 Convertible >> DTC/Circuit Diagnosis >> DTC U121B: Av Control Unit >> DTC Logic

DTC Logic

DTC LOGIC CHART

DTC Display contents of CONSULT-III DTC detection condition Possible malfunction factor
U121B HDD COMM [U121B] AV control unit malfunction is detected.
  • If the music box function has no malfunctions, then there is a possibility of the detection of a temporary malfunction.
  • Replace the AV control unit if the malfunction occurs constantly. Refer to "EXPLODED VIEW ".
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