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Home >> Infiniti >> 2010 >> M45 Base >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control System - Introduction >> Service Information >> Trouble Diagnosis For Intermittent Incident >> Diagnosis Procedure

Diagnosis Procedure

  1. INSPECTION START

    Erase (1st trip) DTCs. Refer to "How to Erase DTC" in "EMISSION-RELATED DIAGNOSTIC INFORMATION ".

    GO TO 2.

  2. CHECK GROUND TERMINALS

    Check ground terminals for corroding or loose connection.

    Refer to "GROUND INSPECTION ".

    OK or NG

    OK: GO TO 3.

    NG: Repair or replace malfunctioning part.

  3. SEARCH FOR ELECTRICAL INCIDENT

    Perform "HOW TO PERFORM EFFICIENT DIAGNOSIS FOR AN ELECTRICAL INCIDENT ", "INCIDENT SIMULATION TESTS".

    OK or NG 

    OK: GO TO 4.

    NG: Repair or replace malfunctioning part.

  4. CHECK CONNECTOR TERMINALS

    Refer to "HOW TO CHECK TERMINAL ", "HOW TO PROBE CONNECTORS", "How to Check Enlarged Contact Spring of Terminal".

    OK or NG 

    OK: INSPECTION END 

    NG: Repair or replace malfunctioning part.

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