ECD SYSTEM(w/ Glow Plug Controller), 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.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P020A Cylinder 1 Injection Close Timing

Measured injection closing time exceeds to calibrated threshold.

(2 trip detection logic)

  • Injector assembly (No. 1)

  • ECM

 - DTC stored
P020B Cylinder 2 Injection Close Timing

Measured injection closing time exceeds to calibrated threshold.

(2 trip detection logic)

  • Injector assembly (No. 2)

  • ECM

 - DTC stored
P020C Cylinder 3 Injection Close Timing

Measured injection closing time exceeds to calibrated threshold.

(2 trip detection logic)

  • Injector assembly (No. 3)

  • ECM

 - DTC stored
P020D Cylinder 4 Injection Close Timing

Measured injection closing time exceeds to calibrated threshold.

(2 trip detection logic)

  • Injector assembly (No. 4)

  • ECM

 - DTC stored
DTC Detection Drive Pattern
DTC No. DTC Detection Drive Pattern
P020A Engine running
P020B
P020C
P020D

CAUTION / NOTICE / HINT

Note

When replacing the ECM and/or an injector assembly, perform ECM Initialization and Registration.

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.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  2. PERFORM REGISTRATION AND INITIALIZATION


    1. Register the injector compensation codes.

      Click here

    2. Perform Pilot Quantity Learning Values Reset.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  3. BLEED AIR FROM FUEL SYSTEM


    1. Bleed the air from the fuel system.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  4. CONFIRM 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.


      Powertrain > Engine and ECT > Clear DTCs

    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 / Pending.

    8. Read the pending DTCs.


      Powertrain > Engine and ECT > Trouble Codes
      Result
      Result Proceed to
      DTC is not output A
      DTC P020A, P020B, P020C or P020D is output B

    A

    END

    B

  5. REPLACE ECM


    1. Replace the ECM.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  6. CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIRED


    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON and turn the GTS on.

    3. Turn the GTS on.

    4. Clear the DTCs.


      Powertrain > Engine and ECT > Clear DTCs

    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 / Pending.

    8. Confirm that the pending DTC is not output again.


      Powertrain > Engine and ECT > Trouble Codes
      Result
      Proceed to
      NEXT

    NEXT

    END