SFI SYSTEM, Diagnostic DTC:P24522A

DTC Code DTC Name
P24522A Particulate Filter Pressure Sensor "A" Signal Stuck In Range

DESCRIPTION

Refer to DTC P244B00.

Click here

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

Note

P24522A

Particulate Filter Pressure Sensor "A" Signal Stuck In Range

When ignition switch to ON, the differential pressure sensor output learning value at atmospheric pressure is above or below the specified value for 1 second or more (1 trip detection logic).

  • Open or short in differential pressure sensor circuit

  • Differential pressure sensor

  • Vacuum transmitting hose assembly

  • No. 1 vacuum pipe

Does not come on

DTC stored

SAE Code: P2453

MONITOR DESCRIPTION

The differential pressure sensor output learning value is updated when ignition switch off after completely engine warmed up drive cycle. The sensor output should show its neutral (zero) value at the condition. The sensor output stuck in range is judged when the learning value is below or above the specified value at ignition switch to ON after the learning value updated.

MONITOR STRATEGY

Frequency of Operation

Continuous

CONFIRMATION DRIVING PATTERN

  1. Connect the GTS to the DLC3.

  2. Turn the ignition switch to ON.

  3. Turn the GTS on.

  4. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

  5. Turn the ignition switch off and wait for at least 30 seconds.

  6. Start the engine and warm it up until the engine coolant temperature reaches 75°C (167°F) or higher.

  7. Idle the engine for 1 minute or more.

  8. Turn the ignition switch off and wait for at least 30 seconds.

  9. Turn the ignition switch to ON.

  10. Turn the GTS on.

  11. Enter the following menus: Powertrain / Engine / Trouble Codes.

  12. Read the pending DTCs.

    Tip:

    • If a pending DTC is output, the system is malfunctioning.

    • If a pending DTC is not output, perform the following procedure.

  13. Enter the following menus: Powertrain / Engine / Utility / All Readiness.

  14. Input the DTC: P24522A.

  15. Check the DTC judgment result.

    GTS Display

    Description

    NORMAL

    • DTC judgment completed

    • System normal

    ABNORMAL

    • DTC judgment completed

    • System abnormal

    INCOMPLETE

    • DTC judgment not completed

    • Perform driving pattern after confirming DTC enabling conditions
    Tip:

    • If the judgment result is NORMAL, the system is normal.

    • If the judgment result is ABNORMAL, the system has a malfunction.

WIRING DIAGRAM

  • Refer to DTC P010012 for the mass air flow meter sub-assembly circuit.

    Click here

  • Refer to DTC P244B00 for the differential pressure sensor circuit.

    Click here

CAUTION / NOTICE / HINT

Tip:

Read Freeze Frame Data using the GTS. The ECM records vehicle and driving condition information as Freeze Frame Data the moment a DTC is stored. When troubleshooting, Freeze Frame Data can help determine if the vehicle was moving or stationary, if the engine was warmed up or not, if the air fuel ratio was lean or rich, and other data from the time the malfunction occurred.

PROCEDURE

  1. CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P24522A)

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Enter the following menus: Powertrain / Engine / Trouble Codes.

    5. Read the DTCs.

      Powertrain > Engine > Trouble Codes

    Result

    Result

    Proceed to

    DTC P24522A is output

    A

    DTC P24522A and other DTCs are output

    B
    Tip:

    If any DTCs other than P24522A are output, troubleshoot those DTCs first.

    B

    GO TO DTC CHART

    Click here

    A

  2. CHECK FOR EXHAUST GAS LEAK

    1. Check for exhaust gas leaks.

      OK

      No gas leaks in exhaust system.

      Tip:

      Perform "Inspection After Repair" after repairing or replacing the exhaust system.

      Click here

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE EXHAUST SYSTEM

    OK

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

    A425206C01

    *1

    Differential Pressure Sensor

    *2

    Vacuum Transmitting Hose Assembly

    *3

    No. 1 Vacuum Pipe

    -

    -

    1. Check the vacuum transmitting hose assembly is no exhaust gas leak between the differential pressure sensor and the vacuum pipe.

      OK

      The vacuum transmitting hose assembly is no exhaust gas leak.

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE MALFUNCTIONING PARTS

    OK

  4. CHECK BLOCKAGE OF VACUUM TRANSMITTING HOSE ASSEMBLY AND VACUUM PIPE

    A425207C01

    *1

    Differential Pressure Sensor

    *2

    Vacuum Transmitting Hose Assembly
    CAUTION:

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

    1. Disconnect vacuum transmitting hose assembly on the differential pressure sensor.

    2. Start the engine.

    3. Check if there are exhaust gas pulsations from vacuum transmitting hose assembly during idling.

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE MALFUNCTIONING PARTS

    OK

  5. INSPECT DIFFERENTIAL PRESSURE SENSOR

    1. Inspect the differential pressure sensor.

      Click here

    Result

    Proceed to

    OK

    NG
    NG

    CHECK HARNESS AND CONNECTOR (DIFFERENTIAL PRESSURE SENSOR - ECM)Click here

    OK

  6. CLEAR DTC

    1. Connect the GTS to the DLC3.

    2. Turn the ignition switch to ON.

    3. Turn the GTS on.

    4. Clear the DTCs.

      Powertrain > Engine > Clear DTCs

    5. Turn the ignition switch off and wait for at least 30 seconds.

    Result

    Proceed to

    NEXT
    NEXT

  7. CHECK WHETHER DTC OUTPUT RECURS (DTC P24522A)

    1. Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

    2. Enter the following menus: Powertrain / Engine / Trouble Codes.

    3. Read the Pending DTCs.

      Powertrain > Engine > Trouble Codes

      OK

      DTCs are not output

    Result

    Proceed to

    NEXT
    NEXT

    END

  8. 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

      B242-3 (VC) - B208-80 (VC)

      Always

      Below 1 Ω

      B242-2 (PEX) - B208-78 (PEX)

      Always

      Below 1 Ω

      B242-1 (E2) - B208-79 (EPEX)

      Always

      Below 1 Ω

      B242-3 (VC) or B208-80 (VC) - Body ground and other terminals

      Always

      10 kΩ or higher

      B242-2 (PEX) or B208-78 (PEX) - Body ground and other terminals

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

  9. 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.

      Tip:

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

    Result

    Proceed to

    NEXT
    NEXT

    END