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Home >> Infiniti >> 2021 >> QX50 Essential, 4WD >> Repair and Diagnosis (Single Page) >> Transmission >> Automatic Trans >> Automatic Transmission (DTC/Circuit Diagnosis) >> DTC/Circuit Diagnosis >> Shift (Electric Shift Control Module) >> DTC P18A8-00: P Range Switch >> DTC Confimation Procedure
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DTC Confimation Procedure

  1. PRECONDITIONING 

    If "DTC CONFIRMATION PROCEDURE" has been previously conducted, always ignition switch OFF and wait at least 10 seconds before conducting the next test.

    GO TO 2.

  2. PERFORM DTC CONFIRMATION PROCEDURE - 1 

    SYMBOL With CONSULT

    1. Turn ignition switch ON.
    2. Press the P position switch to shift to P position and wait for 5 seconds or more. (Be sure to press the P position switch for 1 seconds or more).
    3. Check DTC.

    Is "P18A8-00 detected?

    YES

    Go to DTC Diagnosis Procedure .

    NO

    GO TO 3.

  3. PERFORM DTC CONFIRMATION PROCEDURE - 2 

    SYMBOL With CONSULT

    1. Release the P position switch and wait for 5 minutes or more.
    2. Check DTC.

    Is "P18A8-00 detected?

    YES

    Go to DTC Diagnosis Procedure .

    NO

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

    NO

    Confirmation after repair: INSPECTION END