ECD SYSTEM, Diagnostic DTC:P2453

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

DESCRIPTION

Tip:

  • For more information on the differential pressure sensor assembly and Diesel Particulate Filter (DPF), refer to the following procedures.

    Click here

  • If P2453 is present, refer to the DTC chart for DPF system.

    Click here

  • If the vacuum transmitting hose assemblies of the differential pressure sensor assembly are incorrectly connected (crossed), the ECM interprets this as an abnormal pressure difference, DTC P2453 (Diesel Particulate Filter Pressure Sensor "A" Circuit Range/Performance) is stored and the MIL illuminates.

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

When the output voltage from the differential pressure sensor assembly output voltage is reversal of positive and negative pressure (and vice versa) (1 trip detection logic).

  • Incorrect vacuum transmitting hose assembly

  • Vacuum transmitting hose assembly is clogged

  • Blockage in vacuum transmitting pipe sub-assembly

  • Differential pressure sensor assembly

  • ECM

Comes on

DTC stored
Table 1. Related Data List

DTC No.

Data List

P2453

DPF Differential Pressure
Tip:

  • DTC P2454 (Diesel Particulate Filter Pressure Sensor "A" Circuit Low) and/or DTC P2455 (Diesel Particulate Filter Pressure Sensor "A" Circuit High) will be stored if there is an open or short malfunction in the differential pressure sensor assembly circuit.

  • After confirming DTC P2453, check the differential pressure in "Powertrain / Engine and ECT / Data List / All Data / DPF Differential Pressure" using the GTS.

Table 2. Reference:

Condition

Differential Pressure Output

Sensor Condition

Ignition switch ON

Approximately 0 kPa

Normal

Always

-5 kPa or less or higher than 99 kPa

Open or short circuit

4000 rpm (No engine load)

Negative output

Incorrect hose routing

MONITOR DESCRIPTION

In order to detect abnormality in the differential pressure sensor assembly, the ECM always monitors the output voltage from the sensor. When the sensor output voltage is a reversal of positive and negative pressure, the ECM interprets this as an incorrect vacuum hose arrangement of the sensor, or determines that the vacuum hoses are clogged, and illuminates the MIL.

CONFIRMATION DRIVING PATTERN

DTC No.

DTC Detection Drive Pattern

P2453

Engine is running at 4000 rpm with no load for 10 seconds or more.

CAUTION / NOTICE / HINT

Note:

After replacing the ECM, the new ECM needs registration (Click here) and initialization (Click here).

Tip:

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 OTHER DTC OUTPUT (IN ADDITION TO DTC P2453)

    1. Connect the GTS to the DLC3.

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

    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 is output

      A

      DTC P2453 and other DTCs are output

      B
      Tip:

      If any DTCs other than P2453 are output, troubleshoot those DTCs first.

    B

    GO TO DTC CHART

    Click hereClick here

    A

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

    1. Check if the vacuum transmitting hose assembly routing between the differential pressure sensor assembly and vacuum transmitting pipe sub-assembly is correct.

      A291600C01

      *1

      Differential Pressure Sensor Assembly

      *2

      Vacuum Transmitting Hose Assembly (Upstream)

      *3

      No. 2 Vacuum Transmitting Hose Assembly (Downstream)

      -

      -

      *a

      Front

      *b

      Marked: Yellow

      *c

      Marked: Red

      *d

      Marked: White

      *e

      Marked: Green

      *f

      Marked: Blue

    2. Check that there is no exhaust gas leakage between the differential pressure sensor assembly and vacuum transmitting pipe sub-assembly.

    Result

    Proceed to

    OK

    NG
    NG

    CORRECT TO NORMAL CONNECTIONClick here

    OK

  3. CHECK BLOCKAGE OF VACUUM TRANSMITTING HOSE ASSEMBLY AND VACUUM TRANSMITTING PIPE SUB-ASSEMBLY

    CAUTION:

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

    1. Disconnect both vacuum transmitting hose assemblies (upstream and downstream) from the differential pressure sensor assembly.

    2. Start the engine.

    3. Check if there are exhaust gas pulsations from both vacuum transmitting hose assemblies during idle.

      OK

      Exhaust gas pulsation exists.

    Result

    Proceed to

    OK

    NG
    NG

    REPLACE CLOGGED PARTSClick here

    OK

  4. READ VALUE USING GTS (DPF DIFFERENTIAL PRESSURE)

    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 / DPF Differential Pressure.

      Powertrain > Engine and ECT > Data List

      Tester Display

      DPF Differential Pressure

    4. Check that the differential pressure is as specified below.

      Table 3. Result

      Condition

      Differential Pressure Output

      Sensor Condition

      Ignition switch ON

      Approximately 0 kPa

      Normal

    Result

    Proceed to

    OK

    NG
    OK

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIREDClick here

    NG

  5. REPLACE DIFFERENTIAL PRESSURE SENSOR ASSEMBLY

    1. Replace the differential pressure sensor assembly.

      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. Clear the DTCs.

      Powertrain > Engine and ECT > Clear DTCs

    4. Turn the ignition switch off for 30 seconds or more.

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

    6. Enter the following menus: Powertrain / Engine and ECT / Data List / All Data / DPF Differential Pressure.

      Powertrain > Engine and ECT > Data List

      Tester Display

      DPF Differential Pressure

    7. Check that the differential pressure is as specified below.

      Tip:

      • As long as the pipe connections are correct, the displayed pressure will not be vacuum pressure.

      • For reference result of real-vehicle check is as shown in the table below:

        Condition

        DPF Differential Pressure

        2513 rpm without load

        1.30 kPa or higher

    8. Start the engine.

    9. Engine is running at 4000 rpm with no load for 10 seconds or more.

    10. Confirm that the DTC is not output.

      Tip:

      Perform the following procedure using the GTS to determine whether or not the DTC judgment has been carried out.

      1. Enter the following menus: Powertrain / Engine and ECT / Utility / All Readiness.

        Powertrain > Engine and ECT > Utility

        Tester Display

        All Readiness

      2. Input DTC P2453.

      3. Check that STATUS is NORMAL. If STATUS is INCOMPLETE or N/A, run the engine at 4000 rpm with no load for 10 seconds or more.

    Result

    Proceed to

    NEXT
    NEXT

    END

  7. REPLACE CLOGGED PARTS

    Result

    Proceed to

    NEXT
    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIREDClick here

  8. CORRECT TO NORMAL CONNECTION

    Result

    Proceed to

    NEXT
    NEXT

    CONFIRM WHETHER MALFUNCTION HAS BEEN SUCCESSFULLY REPAIREDClick here