SFI SYSTEM(w/o Canister Pump Module), Diagnostic DTC:P25A912, P25A914

DTC Code DTC Name
P25A912 Piston Cooling Oil Control Circuit Short to Battery
P25A914 Piston Cooling Oil Control Circuit Short to Ground or Open

DESCRIPTION

Refer to DTC P15E517.

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DTC No. Detection Item DTC Detection Condition Trouble Area MIL Memory Note
P25A912 Piston Cooling Oil Control Circuit Short to Battery Monitor current is 0.5 A or higher while the oil pressure switching valve assembly is stopped (1 trip detection logic).

  • Open or short in oil pressure switching valve assembly circuit

  • Oil pressure switching valve assembly

  • ECM

 - DTC stored SAE: P25AB
P25A914 Piston Cooling Oil Control Circuit Short to Ground or Open Monitor current is less than 0.5 A while the oil pressure switching valve assembly is operating (1 trip detection logic).

  • Open or short in oil pressure switching valve assembly circuit

  • Oil pressure switching valve assembly

  • ECM

 - DTC stored SAE: P25AA

MONITOR DESCRIPTION

When the operation request current and monitor current of the oil pressure switching valve assembly do not match, the ECM judges that a malfunction has occurred in the oil pressure switching valve assembly circuit and stores a DTC.

CONFIRMATION DRIVING PATTERN


  1. B006EE7E30
    *1 Vehicle Speed
    *2 4000 rpm
    *3 Idling
    *4 Engine Switch on (IG)

  2. Connect the GTS to the DLC3.

  3. Turn the ignition switch to ON.

  4. Turn the GTS on.

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

  6. Turn the engine switch off and wait for at least 30 seconds.

  7. Start the engine.

  8. Turn the GTS on.

  9. Depress the accelerator pedal, raise the engine speed to approximately 4000 rpm over [A].

  10. Enter the following menus: Powertrain / Engine / Trouble Codes [B].

  11. Read the pending DTCs.

    Tech Tips


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

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

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

  13. Input the DTC: P25A912 or P25A914.

  14. 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

    Tech Tips


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

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

WIRING DIAGRAM

B006BRHE03
*a EOJ+
*b EOJV
*c EOJ-
*d Oil Pressure Switching Valve Assembly

CAUTION / NOTICE / HINT

Tech Tips

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. INSPECT OIL PRESSURE SWITCHING VALVE ASSEMBLY


    1. Inspect the oil pressure switching valve assembly.

      Click here

      Result
      Proceed to
      OK
      NG

    NG

    REPLACE OIL PRESSURE SWITCHING VALVE ASSEMBLY Click here

    OK

  2. CHECK HARNESS AND CONNECTOR (OIL PRESSURE SWITCHING VALVE ASSEMBLY - ECM)


    1. Disconnect the oil pressure switching valve assembly 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
      D61-1 (+B) - D1-24 (EOJ+) Always Below 1 Ω
      D61-2 (EOJV) - D1-25 (EOJ-) Always Below 1 Ω
      D61-1 (+B) or D1-24 (EOJ+) - Body ground and other terminals Always 10 kΩ or higher
      D61-2 (EOJV) or D1-25 (EOJ-) - 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