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Diagnostic Procedure

WARNING: This page is about a different car, the 2004 Infiniti M45. However, it is still accessible from the selected car via links, so may be relevant.
  1. Inspection Start 

    Erase (1st trip) DTCs. Refer to HOW TO ERASE EMISSION-RELATED DIAGNOSTIC INFORMATION .

    1. : GO TO 2.
  2. Check Ground Terminals 

    Check ground terminals for corroding or loose connection.

    Refer to HOW TO PERFORM EFFICIENT DIAGNOSIS FOR AN ELECTRICAL INCIDENT , "CIRCUIT INSPECTION", "Ground Inspection".

    1. OK or NG 
    2. OK: GO TO 3.
    3. NG: Repair or replace.
  3. Search For Electrical Incident 

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

    1. OK or NG 
    2. OK: GO TO 4.
    3. NG: Repair or replace.
  4. Check Connector Terminals 

    Refer to HOW TO CHECK TERMINAL and HOW TO CHECK ENLARGED CONTACT SPRING OF TERMINALS .

    1. OK or NG 
    2. OK: INSPECTION END 
    3. NG: Repair or replace connector.
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