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Home >> Infiniti >> 2009 >> G37 Base, 2D Convertible >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> Audio, Visual & Navigation System (BOSE With Navigation) -- Convertible >> DTC/Circuit Diagnosis >> DTC U121F: Av Control Unit >> Diagnosis Procedure
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Diagnosis Procedure

  1. CHECK AV CONTROL UNIT POWER SUPPLY AND GROUND CIRCUIT

    Check AV control unit power supply and ground circuit. Refer to "AV CONTROL UNIT : DIAGNOSIS PROCEDURE ".

    Is the inspection result normal? 

    YES: INSPECTION END

    NO: Repair or replace malfunctioning parts.

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