СИСТЕМА ECD (для моделей без контроллера свечей накаливания), Diagnostic DTC:P2453

DTC Code DTC Name
P2453 Diesel Particulate Filter Pressure Sensor "A" Circuit Range/Performance

DESCRIPTION

Refer to DTC P2454.

Click here

Tech Tips

If the exhaust pipe air hoses of the differential pressure sensor are incorrectly connected (crossed), the ECM interprets this as an abnormal pressure difference and DTC P2453 will be stored and the MIL will be illuminated.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory
P2453 Diesel Particulate Filter Pressure Sensor "A" Circuit Range/Performance

Both of the following conditions are met:

(1 trip detection logic)


  • The differential pressure indicates -1.6 kPa or less while engine is running

  • Turn the ignition switch off and wait for 30 seconds or more

  • Incorrect vacuum transmitting hose routing

  • Vacuum transmitting hose is clogged

  • Blockage in vacuum transmitting pipe

  • Differential pressure sensor

  • No. 2 exhaust manifold converter sub-assembly (DPF catalytic converter)

  • ECM

 Comes on DTC stored
DTC Detection Drive Pattern
DTC No. DTC Detection Drive Pattern
P2453

Start the engine and drive the vehicle with a engine speed of 3000 rpm or more (3rd gear) for 10 minutes or more.

Then turn the ignition switch off and wait for 30 seconds or more.
DTC No. Data List
P2453 DPF Differential Pressure

Tech Tips

DTC P2454 (Differential pressure sensor circuit low) and/or DTC P2455 (Differential pressure sensor high) will be present if there is an open or short in the differential pressure sensor circuit.

CAUTION / NOTICE / HINT

Note

When replacing the ECM and/or DPF catalyst, 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.

  • Check the DPF Differential Pressure using the GTS by entering the following menus: Powertrain / Engine and ECT / Data List / DPF Differential Pressure.

    DPF Differential Pressure (Reference Value)
    Condition DPF Differential Pressure
    Idling (warm up the engine) -0.204 kPa
    Running without load (2500 rpm) 0.296 kPa
    Running without load (4000 rpm) 0.699 kPa

PROCEDURE


  1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P2453)


    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.

    4. Read the DTCs.


      Powertrain > Engine and ECT > Trouble Codes
      Result
      Result Proceed to
      DTC P2453 and "P2454 or P2455" are output A
      Except above B

      Tech Tips

      If the DTC P2453 and "P2454 or P2455" are output, perform troubleshooting for DTC P2454 and P2455 first.


    A

    GO TO DTC CHART Click here

    B

  2. CHECK CONNECTION OF VACUUM TRANSMITTING HOSE (DIFFERENTIAL PRESSURE SENSOR - VACUUM TRANSMITTING PIPE)


    1. Check if vacuum transmitting hoses routing between the differential pressure sensor and the vacuum transmitting pipe is correct.

      A01TDPOC01
      *1 Differential Pressure Sensor *2 Vacuum Transmitting Hose (for upstream)
      *3 No. 2 Vacuum Transmitting Hose (for downstream) - -
      *a Marked: Yellow *b Marked: Pink
      *c Marked: Red *d Marked: Orange

    2. Check that there is no exhaust gas leak between the differential pressure sensor and the vacuum transmitting pipe.

      Result
      Proceed to
      OK
      NG

    NG

    CORRECT TO NORMAL CONNECTION Click here

    OK

  3. CHECK BLOCKAGE OF VACUUM TRANSMITTING HOSE AND TRANSMITTING PIPE

    CAUTION:

    Be careful of being burned by exhaust gases during the following inspection.


    1. Disconnect both vacuum transmitting hoses (upstream and downstream) on the differential pressure sensor.

    2. Start the engine.

    3. Check if there are exhaust gas pulsations from both vacuum transmitting hoses during idling.

      OK
      There is no blockage.
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE CLOGGED PARTS Click here

    OK

  4. INSPECT DIFFERENTIAL PRESSURE SENSOR


    1. Inspect the differential pressure sensor.

      Click here

      Standard
      Approximately the same pressure as the applied pressure is indicated.

      Tech Tips

      The DPF Differential Pressure displayed is a value that does not reflect the zero point adjustment. Therefore the displayed may vary about +/-0.3 kPa even if the applied differential pressure is 0 kPa.

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE DIFFERENTIAL PRESSURE SENSOR Click here

    OK

  5. PERFORM DIFFERENTIAL PRESSURE SENSOR LEARNING


    1. Start the engine and allow it to idle until the engine coolant temperature reaches 75°C (167°F) or higher (A).

    2. Turn the ignition switch off and wait for 30 seconds or more (B).

    3. Repeat the above procedures (A) and (B) 3 times.

      Tech Tips

      Procedures (A) and (B) must be repeated 3 times to complete the differential pressure sensor learning process.

      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. Clear the DTCs.


      Powertrain > Engine and ECT > Clear DTCs

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

    5. Start the engine and drive the vehicle with an engine speed of 3000 rpm or more (3rd gear) for 10 minutes or more.

      CAUTION:

      When performing the confirmation driving pattern, obey all speed limits and traffic laws.

    6. Turn the ignition switch off and wait for 30 seconds or more.

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

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

    9. Confirm that the DTC is not output again.


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

    NEXT

    END

  7. REPLACE DIFFERENTIAL PRESSURE SENSOR


    1. Replace the differential pressure sensor.

      Click here

    2. Start the engine and allow it to idle until the engine coolant temperature reaches 75°C (167°F) or higher (A).

    3. Turn the ignition switch off and wait for 30 seconds or more (B).

    4. Repeat the above procedures (A) and (B) 3 times.

      Tech Tips

      Procedures (A) and (B) must be repeated 3 times to complete the differential pressure sensor learning process.

      Result
      Proceed to
      NEXT

    NEXT

  8. INSPECT DIFFERENTIAL PRESSURE SENSOR


    1. Inspect the differential pressure sensor.

      Click here

      Standard
      Approximately the same pressure as the applied pressure is indicated.

      Tech Tips

      The DPF Differential Pressure displayed is a value that does not reflect the zero point adjustment. Therefore the displayed may vary about +/-0.3 kPa even if the applied differential pressure is 0 kPa.

      Result
      Proceed to
      OK
      NG

    OK

    GO TO STEP 6 Click here

    NG

    REPLACE ECM Click here

  9. REPLACE CLOGGED PARTS

    Result
    Proceed to
    NEXT

    NEXT

    GO TO STEP 6 Click here

  10. REPLACE ECM


    1. Replace the ECM.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    GO TO STEP 6 Click here

  11. CORRECT TO NORMAL CONNECTION

    Result
    Proceed to
    NEXT

    NEXT

    GO TO STEP 6 Click here