ECD SYSTEM, Diagnostic DTC:P2453

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

DESCRIPTION

Refer to DTC P2454.

Click here

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

The difference between the differential pressure sensor output value and the ambient pressure sensor output value is more than 60 mbar (6 kPa) for 0.05 seconds.

(3 trip detection logic)

  • Open or short in differential pressure sensor circuit

  • Differential pressure sensor

  • Differential pressure sensor pipe

  • ECM

 Comes on DTC stored
Related Data List
DTC No. Data List
P2453 Filtered Pressure Value at Particle Filter Upstream

WIRING DIAGRAM

Refer to DTC P2454.

Click here

CAUTION / NOTICE / HINT

Note


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

    Click here

  • After replacing the differential pressure sensor, the ECM needs 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 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. READ VALUE USING GTS


    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 / Data List / Atmosphere Pressure and Filtered Pressure Value at Particle Filter Upstream.


      Powertrain > Engine and ECT > Data List
      Tester Display
      Atmosphere Pressure
      Filtered Pressure Value at Particle Filter Upstream

    4. Read the value.

      OK
      Difference between the Atmosphere Pressure and the Filtered Pressure Value at Particle Filter Upstream is less than 8 kPa.
      Result
      Proceed to
      OK
      NG

    OK

    GO TO STEP 10 Click here

    NG

  2. CHECK DIFFERENTIAL PRESSURE SENSOR AIR HOSE CONNECTION


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

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

      OK
      Exhaust pipe air hose routing is correct and there is no exhaust gas leak.
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE MALFUNCTIONING PARTS Click here

    OK

  3. CHECK HARNESS AND CONNECTOR (DIFFERENTIAL PRESSURE SENSOR - ECM)


    1. Disconnect the differential pressure sensor connector.

    2. Disconnect the ECM connector.

    3. Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      B127-1 (VC) - B112-70 (VCPX) Always Below 1 Ω
      B127-2 (PEX) - B112-85 (PEX) Always Below 1 Ω
      B127-3 (E2) - B112-71 (EPEX) Always Below 1 Ω
      B127-1 (VC) or B112-70 (VCPX) - Body ground Always 10 kΩ or higher
      B127-2 (PEX) or B112-85 (PEX) - Body ground Always 10 kΩ or higher
      B127-3 (E2) or B112-71 (EPEX) - Body ground Always 10 kΩ or higher
      Result
      Proceed to
      OK
      NG

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR Click here

    OK

  4. CHECK HARNESS AND CONNECTOR (VC VOLTAGE)

    A01QRM3C26
    *a

    Front view of wire harness connector

    (to Differential Pressure Sensor)

    1. Disconnect the differential pressure sensor connector.

    2. Turn the ignition switch to ON.

    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      B127-1 (VC) - B127-3 (E2) Ignition switch ON 4.5 to 5.5 V
      Result
      Proceed to
      OK
      NG

    NG

    REPLACE ECM Click here

    OK

  5. REPLACE DIFFERENTIAL PRESSURE SENSOR


    1. Replace the differential pressure sensor.

      Click here

    2. Perform the differential pressure learning value reset.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

  6. CHECK WHETHER DTC OUTPUT RECURS (DTC P2453)


    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 P2453 B

    A

    END

    B

  7. REPLACE ECM


    1. Replace the ECM.

      Click here

      Result
      Proceed to
      NEXT

    NEXT

    GO TO STEP 10 Click here

  8. REPAIR OR REPLACE HARNESS OR CONNECTOR


    1. Repair or replace the harness or connector.

      Result
      Proceed to
      NEXT

    NEXT

    GO TO STEP 10 Click here

  9. REPAIR OR REPLACE MALFUNCTIONING PARTS


    1. Repair or replace the malfunctioning parts.

      Result
      Proceed to
      NEXT

    NEXT

  10. 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