ECD SYSTEM(w/ DPF), Diagnostic DTC:P020A, P020B, P020C, P020D

DTC Code DTC Name
P020A Cylinder 1 Injection Close Timing
P020B Cylinder 2 Injection Close Timing
P020C Cylinder 3 Injection Close Timing
P020D Cylinder 4 Injection Close Timing

DESCRIPTION

The ECM performs fuel injection by sending the injection signal to the injector.

Conversely, after the injection signal stops, the ECM monitors the timing of injector valve closing by detecting the counter electromotive force from the injector.

If the correction amount of the injection closing timing is greater than the threshold, the ECM outputs a DTC.

P020A
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Engine running

Measured injection closing time exceeds the calibrated threshold

(2 trip detection logic)

  • No. 1 injector assembly

  • ECM
P020B
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Engine running

Measured injection closing time exceeds the calibrated threshold

(2 trip detection logic)

  • No. 2 injector assembly

  • ECM
P020C
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Engine running

Measured injection closing time exceeds the calibrated threshold

(2 trip detection logic)

  • No. 3 injector assembly

  • ECM
P020D
DTC Detection Drive Pattern DTC Detection Condition Trouble Area
Engine running

Measured injection closing time exceeds the calibrated threshold

(2 trip detection logic)

  • No. 4 injector assembly

  • ECM

CAUTION / NOTICE / HINT

Note

When replacing the ECM and/or injector assembly, the ECM needs Registration and Initialization Click here.

Tech Tips


  • When the ECM must be replaced, before replacing the ECM, perform the "Learning Values Save" function using the GTS. Then after installing a new ECM, perform all of the initialization and registration procedures for the "Learning Values Write" function by following the instructions shown on the GTS display.

  • Read freeze frame data using the GTS. Freeze frame data records the engine condition when malfunctions are detected. When troubleshooting, freeze frame data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, and other data from the time the malfunction occurred.

PROCEDURE


  1. REPLACE INJECTOR ASSEMBLY


    1. Replace the injector assembly for which the DTC applies.


    NEXT

  2. PERFORM REGISTRATION AND INITIALIZATION


    1. Register the injector assembly compensation code Click here.

    2. Perform Pilot Quantity Learning Values Reset Click here.


    NEXT

  3. BLEED AIR FROM FUEL SYSTEM


    1. Bleed air from fuel system Click here.


    NEXT

  4. CHECK WHETHER DTC OUTPUT RECURS


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Clear the DTCs Click here.

    5. Turn the ignition switch off and wait for 30 seconds.

    6. Start the engine.

    7. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

    8. Read the DTCs.

      Result
      Result Proceed to
      DTC is not output A
      DTC P020A, P20B, P20C or P20D is output B

    A

    END

    B

  5. REPLACE ECM


    1. Replace the ECM Click here.


    NEXT

  6. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Clear the DTCs Click here.

    5. Turn the ignition switch off and wait for 30 seconds.

    6. Start the engine.

    7. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

    8. Confirm that the DTC is not output again.


    NEXT

    END