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Home >> Infiniti >> 2017 >> QX80 Base, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 82 (Audio, Visual & Navigation System (Base Audio Without Navigation) (DTC/Circuit Diagnosis)) >> DTC / Circuit Diagnosis >> DTC U121D: Av Control Unit >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2016 Infiniti QX50. However, it is still accessible from the selected car via links, so may be relevant.

  1. CHECK PLAYBACK OF A DISK (CD)

    Can a disk (CD) be played?

    YES 

    Malfunction may be detected transitory.

    NO 

    Replace AV control unit. Refer to REMOVAL AND INSTALLATION .

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