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Home >> Infiniti >> 2015 >> QX80 Base, AWD >> Repair and Diagnosis >> Accessories & Equipment >> Infotainment >> Audio, Visual & Navigation System (BOSE Audio With Navigation) (Diagnostic Trouble Codes (DTCS) U1207-B272C, Symptom Tests And R & I) >> DTC/Circuit Diagnosis >> DTC U121B: Av Control Unit >> Diagnosis Procedure

Diagnosis Procedure

  1. CHECK MUSIC BOX FUNCTION

    Is music box function normal?

    YES 

    Malfunction may be detected transitory.

    NO 

    Replace AV control unit. Refer to REMOVAL AND INSTALLATION .

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