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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 64 (Multi Av System (NAVI With BOSE) (DTC/Circuit Diagnosis)) >> DTC/Circuit Diagnosis >> DTC U12B7: USB Conn >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2018 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.
  1. CHECK DTC (1) 

    SYMBOL CONSULT

    1. Remove connected audio apparatus from USB port.
    2. Turn ignition switch OFF and wait at least 30 seconds.
    3. Turn ignition switch ON.
    4. Erase DTC.
    5. Turn ignition switch OFF and wait at least 30 seconds.
    6. Turn ignition switch ON and wait at least 30 seconds or more.
    7. Check "Self Diagnostic Result" of "MULTI AV".

    Is any DTC detected?

    YES

    Replace AV control unit. Refer to Removal and Installation .

    NO

    GO TO 2 .

  2. CHECK DTC (2) 
    1. Connect audio apparatus to USB port again.
    2. Check "Self Diagnostic Result" mode of "MULTI AV".

    Is DTC U12B7 detected?

    YES

    Abnormality of audio apparatus connected to USB port.

    NO

    Inspection End.

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