СИСТЕМА ECD, Diagnostic DTC:P2000

DTC Code DTC Name
P2000 NOx Adsorber Efficiency Below Threshold Bank 1

DESCRIPTION

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P2000 NOx Adsorber Efficiency Below Threshold Bank 1

The regeneration throughput of the catalytic converter is less than the standard value.

(3 trip detection logic)

  • Air fuel ratio sensor (for sensor 1)

  • Exhaust Manifold Converter Sub-assembly (Catalytic Converter)

 Comes on DTC stored

CAUTION / NOTICE / HINT

Note


  • After replacing the air fuel ratio sensor, the ECM needs initialization.

    Click here

  • After replacing the exhaust manifold converter sub-assembly (catalytic converter), the ECM needs initialization.

    Click here

Tech Tips

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. CHECK AIR FUEL RATIO SENSOR (FOR SENSOR 1)


    1. Check the installation condition of the air fuel ratio sensor (for sensor 1).

      OK
      Air fuel ratio sensor is correctly installed.
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR AIR FUEL RATIO SENSOR (FOR SENSOR 1) Click here

    OK

  2. CHECK AIR FUEL RATIO SENSOR (FOR SENSOR 1)


    1. Check for soot deposits in the air fuel ratio sensor (for sensor 1).

      OK
      No soot deposits.
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR AIR FUEL RATIO SENSOR (FOR SENSOR 1) Click here

    OK

  3. REPLACE AIR FUEL RATIO SENSOR (FOR SENSOR 1)


    1. Replace the air fuel ratio sensor (for sensor 1).

      Click here

    2. Perform the O2 sensor learning value reset.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  4. CHECK WHETHER DTC OUTPUT RECURS (DTC P2000)


    1. Connect the GTS to the DLC3.

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

    3. Clear the DTCs.


      Powertrain > Engine and ECT > Clear DTCs

    4. Turn the ignition switch off and wait for 60 seconds or more [A].

    5. Perform road test [B].

    6. Repeat [A] and [B] for the number of trips detected.

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


      Powertrain > Engine and ECT > Trouble Codes

    8. Read the DTCs.

      Result
      Result Proceed to
      No DTC output A
      DTC P2000 B

    A

    END

    B

  5. REPLACE EXHAUST MANIFOLD CONVERTER SUB-ASSEMBLY (DPF CATALYTIC CONVERTER)


    1. Replace the exhaust manifold converter sub-assembly (catalytic converter).

      Click here

    2. Perform DPF history information reset and NOx storage catalyst learning value reset.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    GO TO STEP 8 Click here

  6. REPAIR AIR FUEL RATIO SENSOR (FOR SENSOR 1)


    1. Remove any soot deposits from the air fuel ratio sensor.

      Result
      Proceed to
      NEXT

    NEXT

    GO TO STEP 8 Click here

  7. REPAIR AIR FUEL RATIO SENSOR (FOR SENSOR 1)


    1. Reinstall the air fuel ratio sensor (for sensor 1).

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  8. 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. Clear the DTCs.


      Powertrain > Engine and ECT > Clear DTCs

    4. Turn the ignition switch off and wait for 60 seconds or more [A].

    5. Perform road test [B].

    6. Repeat [A] and [B] for the number of trips detected.

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


      Powertrain > Engine and ECT > Trouble Codes

    8. Confirm that the DTC is not output again.

      Result
      Proceed to
      NEXT

    NEXT

    END