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Home >> Nissan-Datsun >> 2008 >> Quest Base >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Engine Control System - Introduction >> Trouble Diagnosis For Intermittent Incident >> Diagnostic Procedure
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Diagnostic Procedure

  1. INSPECTION START 

    Erase (1st trip) DTCs. Refer to "HOW TO ERASE 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.

  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.

  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 connector.

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