СИСТЕМА ECD ОСНОВНАЯ ПРОВЕРКА

Tech Tips

When a malfunction is not confirmed by the DTC (Diagnostic Trouble Code) check, troubleshooting should be carried out in all circuits considered to be possible causes of the problem. In many cases, by carrying out the basic engine check shown in the following flowchart, the location of the problem can be found quickly and efficiently. Therefore, using this check is essential when troubleshooting the engine.


  1. CHECK BATTERY VOLTAGE

    Note

    Carry out this check with the engine stopped and ignition switch OFF.

    Standard voltage
    OK NG
    11 V or more Less than 11 V

    NG

    CHARGE OR REPLACE BATTERY
    OK

  2. CHECK IF ENGINE WILL CRANK


    NG

    PROCEED TO PROBLEM SYMPTOMS TABLE
    OK

  3. CHECK AIR FILTER


    1. Visually check that the air filter is not excessively contaminated with dirt or oil.


      NG

      CLEAN OR REPLACE
      OK

  4. CHECK FUEL QUALITY


    1. Check that only diesel fuel has been used.

    2. Check that the fuel does not contain any impurities.


      NG

      REPLACE FUEL
      OK

  5. CHECK FUEL FOR AIR


    NG

    BLEED AIR FROM FUEL
    OK

  6. CHECK FUEL PIPES AND HOSES


    1. Check that the fuel pipes and fuel hoses are not blocked, damaged, disconnected and bent.


      NG

      REPAIR OR REPLACE
      OK

  7. CHECK FUEL FILTER FOR BLOCKAGE


    NG

    REPAIR OR REPLACE
    OK

  8. CHECK ENGINE OIL


    NG

    ADD OR REPLACE ENGINE OIL
    OK

  9. CHECK ENGINE COOLANT


    NG

    ADD OR REPLACE ENGINE COOLANT
    OK

  10. CHECK IDLING SPEED AND MAXIMUM SPEED


    NG

    REPAIR OR REPLACE INJECTION PUMP
    OK

  11. CHECK DIAGNOSTIC CIRCUIT


    NG

    REPAIR OR REPLACE
    OK

  12. CHECK VACUUM PUMP


    NG

    REPAIR OR REPLACE VACUUM PUMP
    OK
    PROCEED TO PROBLEM SYMPTOMS TABLE