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Home >> Infiniti >> 2021 >> QX50 Essential, 4WD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Drivers Assistance Systems - ADAS >> ADAS Control Unit (DTC/Circuit Diagnosis) (2 Of 2) >> DTC U0402: TCM Can 1 >> ADAS Control Unit >> With Direct Adaptive Steering System >> DTC Description >> DTC Confirmation Procedure
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DTC Confirmation Procedure

  1. CHECK DTC PRIORITY 

    If DTC "U0402-00" is displayed with DTC "U1000"-01, first diagnose the DTC "U1000-01".

    Is applicable DTC detected?

    YES

    Perform diagnosis of applicable. Refer to DTC Description .

    NO

    GO TO 2.

  2. PERFORM DTC CONFIRMATION PROCEDURE 
    1. Start the engine.
    2. Turn the MAIN switch of ICC system ON.
    3. Perform "All DTC Reading" with CONSULT.
    4. Check if the "U0402-00" is detected as the current malfunction in "Self Diagnostic Result" of "ICC/ADAS".

    Is "U0402-00" detected as the current malfunction?

    YES

    Refer to Diagnosis Procedure .

    NO

    To check malfunction symptom before repair: Refer to Intermittent Incident .

    NO

    Confirmation after repair: Inspection End.

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