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Home >> Nissan-Datsun >> 2021 >> NV2500 HD S >> Repair and Diagnosis >> External Pages >> Different car >> Section 594 (Telematics System (DTC/Circuit Diagnosis)) >> DTC/Circuit Diagnosis >> DTC U1A01: TCU >> Diagnosis Procedure

Diagnosis Procedure

WARNING: This page is about a different car, the 2020 Infiniti QX60. However, it is still accessible from the selected car via links, so may be relevant.
  1. PERFORM DTC CONFIRMATION PROCEDURE AGAIN 

    Perform DTC confirmation procedure again. Refer to DTC Confirmation Procedure .

    Is DTC U1A01 detected again?

    YES

    Replace TCU. Refer to Removal and Installation .

    NO

    Inspection End.

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