SFI SYSTEM, Diagnostic DTC:P245211

DTC Code DTC Name
P245211 Particulate Filter Pressure Sensor "A" Circuit Short to Ground

DESCRIPTION

A differential pressure sensor is installed to monitor the pressure before the GPF (Gasoline Particulate Filter) catalyst converter. The sensor is a semiconductor type that is not affected by the exhaust gas. The differential pressure sensor outputs the difference between the atmospheric pressure and the pressure before the GPF catalyst.

A409082E05

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

Note

P245211

Particulate Filter Pressure Sensor "A" Circuit Short to Ground

The output voltage from the differential pressure sensor is below 0.4 V for 3 seconds or more (1 trip detection logic).

  • Open or short in differential pressure sensor circuit

  • Differential pressure sensor

  • ECM

Does not come on

DTC stored

SAE Code: P2454
Tip:

When a DTC is output, check the Data List item "GPF Differential Pressure Offset Bank 1" using the GTS.

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DTC No.

GPF Differential Pressure Offset Bank 1

Malfunction

P245211

Approximately -5 kPa [-0.73 psi]

  • Short in PEX circuit to ground

  • Short in PEX circuit to EPEX circuit

  • Open in VCPX circuit

If the Data List displays a normal value, the normal value may be due to a temporary recovery from the malfunction condition. Check for intermittent problems.

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MONITOR DESCRIPTION

In order to detect abnormality in the differential pressure sensor, the ECM always monitors the output voltage from the sensor. When the sensor output voltage deviates from the normal operating range, the ECM interprets this as a malfunction in the sensor circuit.

Example:

When the sensor output voltage is below 0.4 V for 3 seconds or more, the ECM stores a DTC.

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. Turn the ignition switch to ON.

  7. Turn the GTS on.

  8. Start the engine and wait 5 seconds or more.

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

  10. 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.

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

  12. Input the DTC: P245211.

  13. 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 shows NORMAL, the system is normal.

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

WIRING DIAGRAM

Refer to DTC P244B00.

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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 HARNESS AND CONNECTOR

    A402433C10

    *a

    Front view of wire harness connector

    (to Differential Pressure Sensor)
    Tip:

    Make sure that the connector is properly connected. If it is not, securely connect it and check for DTCs again.

    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

      Condition

      Specified Condition

      B242-3 (VC) - B242-1 (E2)

      Ignition switch ON

      4.75 to 5.25 V

      B242-2 (PEX) - B242-1 (E2)

      Ignition switch ON

      0.5 to 1.0 V

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

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

      Standard Resistance

      Tester Connection

      Condition

      Specified Condition

      B242-3 (VC) - B242-2 (PEX)

      Ignition switch ON

      190 to 210 kΩ

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE DIFFERENTIAL PRESSURE SENSOR

    Click here

    NG

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

      Always

      10 kΩ or higher

    Result

    Proceed to

    OK

    NG
    OK

    REPLACE ECM

    Click here

    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR