ECD SYSTEM DPF FORCIBLE REGENERATION PROCEDURE


  1. DPF FORCIBLE REGENERATION PROCEDURE


    1. Park the vehicle in a safe location.

      Note

      Do not leave combustible materials around the exhaust pipe because the temperature of the DPF catalytic converter increases during the forcible regeneration.

    2. Shift the lever to the neutral position.

    3. Securely apply the parking brake.

    4. Warm up the engine.

    5. Accelerate the engine speed to the maximum rpm with no load 20 times.

    6. Connect the intelligent tester to the DLC3.

    7. Turn the intelligent tester on.

    8. Enter the following menu items: Powertrain / Engine and ECT / Active Test / Activate the DPF Rejuvenate (PM).

      Tech Tips

      When the DPF indicator light is blinking, the forcible regeneration function can be performed by pressing the DPF switch.

    9. Check that the idling speed increases and the exhaust brake operates.

      Tech Tips


      • If the exhaust gas temperature (OUT) exceeds 800°C (1472°F), cease the forcible regeneration function immediately.

      • If DTC P2002 recurs during the forcible regeneration, catalyst degradation may occur.

      • If the exhaust brake opens and closes repetitively or does not close, check the exhaust system. Also, check for friction within the alternator and the air conditioning compressor because the engine load may be abnormally high.

      • It takes 15 to 20 minutes to complete the forcible regeneration function.

    10. Check that the engine speed decreases, the exhaust brake is released, and the forcible regeneration function is completed.

    11. After the forcible regeneration is completed, allow the engine to idle for at least 5 minutes.

    12. Enter the following menu items: Powertrain / Engine and ECT / Data List / Exhaust Temp (In).

    13. Enter the following menu items: Powertrain / Engine and ECT / Data List / DPF Differential Pressure.

    14. Check the differential pressure when the exhaust gas temperature sensor indicates 200°C or less.

      Tech Tips


      • If the exhaust gas temperature is high, the differential pressure cannot be measured correctly.

      • If the differential pressure is outside the normal range, the monolithic converter assembly may have deteriorated or the monolithic converter assembly may be clogged with PM.

      • Fully depress the accelerator pedal and when the engine speed becomes stable, promptly read the differential pressure.

    15. Check the amount of engine oil.

    16. If the amount of engine oil is more than the specified level, replace the engine oil.

    17. DPF FORCIBLE REGENERATION is complete.