ECD SYSTEM, Diagnostic DTC:P00BD

DTC Code DTC Name
P00BD Mass or Volume Air Flow "A" Circuit Range/Performance - Air Flow Too High

DESCRIPTION

Tech Tips

For more information on the EGR control, refer to System Description.

Click here

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P00BD Mass or Volume Air Flow "A" Circuit Range/Performance - Air Flow Too High

Either condition is met (3 trip detection logic):


  • Measured air mass compared with calculated air mass too high for 5 seconds.

  • Measured air mass compared with calculated air mass too high and high boost pressure deviation for 5 seconds.

  • Intake system air leak

  • Intake air temperature sensor

  • EGR valve assembly

  • EGR cooler assembly

  • Turbo pressure sensor assembly

  • ECM

 Comes on DTC stored
Related Data List
DTC No. Data List
P00BD

  • Target EGR Position

  • Actual EGR Valve Pos

  • Intake Air Temp (Turbo)

CAUTION / NOTICE / HINT

Note


  • When replacing the ECM, the ECM needs registration and initialization.

    Click here

  • After replacing the EGR valve assembly, the ECM needs initialization.

    Click here

  • Inspect the fuses for circuits related to this system before performing the following inspection procedure.

Tech Tips


  • When the ECM must be replaced, before replacing the ECM, perform the "Learning V alues Save" function using the GTS. Then after installing the new ECM, perform all of the initialization/registrations 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. CHECK DTC OUTPUT


    1. Connect the GTS to the DLC3.

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

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


      Powertrain > Engine and ECT > Trouble Codes

    4. Read the DTCs.

      Result
      Result Proceed to
      DTC P00BD A
      DTC P00BD and other DTCs B

    B

    GO TO DTC CHART Click here

    A

  2. CHECK INTAKE AIR TEMPERATURE SENSOR


    1. Connect the GTS to the DLC3.

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

    3. Start the engine.

    4. Enter the following menus: Powertrain / Engine and ECT / Data List / Intake Air Temp (Turbo).


      Powertrain > Engine and ECT > Data List
      Tester Display
      Intake Air Temp (Turbo)
      OK
      A value excessively higher than the actual intake air temperature is not displayed.
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE INTAKE AIR TEMPERATURE SENSOR Click here

    OK

  3. CHECK TURBO PRESSURE SENSOR ASSEMBLY


    1. Check for DTCs related to the turbo pressure sensor assembly.

      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE TURBO PRESSURE SENSOR ASSEMBLY Click here

    OK

  4. CHECK INTAKE SYSTEM


    1. Start the engine.

    2. Check air duct between intake silencer, mass air flow meter sub-assembly and turbocharger for leaks.

    3. Check air duct between turbocharger and intake manifold for leaks.

      Tech Tips


      • Oily patches are signs of leaks.

      • Check whether sealing rings on charge air hoses are rolled back or missing.

      OK
      No leakage.
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE INTAKE SYSTEM Click here

    OK

  5. PERFORM ACTIVE TEST USING GTS (ACTUATOR TEST OF EGR-VALVE)


    1. Connect the GTS to the DLC3.

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

    3. Start the engine.

    4. Enter the following menus: Powertrain / Engine and ECT / Active Test / Actuator Test of EGR-Valve / Data List / Target EGR Position and Actual EGR Valve Pos.


      Powertrain > Engine and ECT > Active Test
      Active Test Display
      Actuator Test of EGR-Valve
      Data List Display
      Target EGR Position
      Actual EGR Valve Pos

    5. Perform the following steps 1 to 4.

    6. Step 1


      1. Perform Actuator Test of EGR-Valve with control value of 0% (opening ratio in %).

      2. Monitor the difference of the control value and EGR valve Actuator Position value (0 +/- 3%). EGR valve must operate within 1 second.

    7. Step 2


      1. Wait for 2 seconds or more.

    8. Step 3


      1. Perform Actuator Test of EGR-Valve with control value of 94% (opening ratio in %).

      2. Monitor the difference of the control value and EGR valve Actuator Position value (0 +/- 3%). EGR valve must operate within 1 second.

    9. Step 4


      1. Wait for 2 seconds or more.

    10. Perform the above steps 1 to 4 and check that the part operates as specified.

      OK
      Part operates as specified.

      Tech Tips


      • If DTCs P00BD, P042F or P1268 is output, there may be a malfunction in the EGR system.

      • This inspection is primarily to check that the EGR valve is not clogged with soot and not stuck closed.

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE EGR VALVE ASSEMBLY Click here

    OK

  6. CHECK EGR COOLER ASSEMBLY


    1. Check the EGR cooler assembly.

      Click here

    2. Check that the airflow is not slowed by soot deposits in the EGR cooler.

      OK
      Airflow is not slowed by soot deposits.

      Tech Tips

      If a malfunction is detected during this inspection, soot deposits may be accumulating in the EGR cooler.

      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE EGR COOLER ASSEMBLY Click here

    OK

  7. CHECK WHETHER DTC OUTPUT RECURS (DTC P00BD)


    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 A
      DTC P00BD B

    A

    END

    B

  8. REPLACE ECM


    1. Replace the ECM.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    GO TO STEP 14 Click here

  9. REPAIR OR REPLACE EGR COOLER ASSEMBLY


    1. Clean the EGR cooler assembly.

    2. If soot deposits cannot be removed, replace the EGR cooler assembly.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    GO TO STEP 14 Click here

  10. REPLACE EGR VALVE ASSEMBLY


    1. Replace the EGR valve assembly.

      Click here

    2. Perform EGR learning value reset.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    GO TO STEP 14 Click here

  11. REPAIR OR REPLACE INTAKE SYSTEM


    1. Repair or replace the malfunctioning parts of the intake system.

      Result
      Proceed to
      NEXT

    NEXT

    GO TO STEP 14 Click here

  12. REPAIR OR REPLACE TURBO PRESSURE SENSOR ASSEMBLY


    1. Repair or replace turbo pressure sensor assembly or perform inspections and troubleshooting for related DTCs.

      Click here

      Tech Tips

      When the turbo pressure sensor assembly is replaced, perform initialization.

      Result
      Proceed to
      NEXT

    NEXT

    GO TO STEP 14 Click here

  13. REPLACE INTAKE AIR TEMPERATURE SENSOR


    1. Replace the intake air temperature sensor.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  14. 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