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Home >> Infiniti >> 2013 >> M56 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - DTCS P1087 To P2542 >> DTC P1423, P1424: Cold Start Control >> Diagnosis Procedure

Diagnosis Procedure

  1. INSPECTION START 
    1. Turn ignition switch ON.
    2. Erase DTC.
    3. Perform DTC confirmation procedure. Refer to "DTC LOGIC ".
    4. Check 1st trip DTC.

      Is the 1st trip DTC P1423 or P1424 displayed again? 

      YES: GO TO 2.

      NO: INSPECTION END

  2. REPLACE ECM 

    Replace ECM. Refer to "REMOVAL AND INSTALLATION ".

    : INSPECTION END

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