Toyota Yaris: Sfi System / Engine Oil Pressure Too Low (P052400)

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 warm it up until the engine coolant temperature is 75°C (167°F) or higher with all the accessories switched off [A].
9. When the vehicle is stationery, gradually depress the accelerator pedal to increase the engine speed to 4000 rpm over a 30 second period, run the engine speed at 4000 rpm for 1 minute, then release the accelerator pedal to return to the idling speed [B].
10. Repeat step [B] 3 times or more [C].
11. Enter the following menus: Powertrain / Engine / Trouble Codes [D].
12. Read the pending DTCs.

    HINT:

    • 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: P052400.
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

    HINT:

    • If the judgment result is NORMAL, the system is normal.
    • If the judgment result is ABNORMAL, the system is malfunctioning.
    • If the judgment result is INCOMPLETE, perform steps [B] through [D] again.

HINT:

• If the engine oil level is sufficient but a low engine oil level DTC is output, confirm with the customer whether engine oil was added after the vehicle had been driven with a low engine oil level.
• If an incorrect engine oil viscosity is used, a DTC related to low oil pressure, etc., may be stored.
• 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.

HINT:

• Click here
• If the oil filter has exceeded the replacement period, replace the oil filter at the same time.

HINT:

• When the engine oil pressure and temperature sensor is removed, the engine oil temperature cannot be checked, so refer to "Coolant Temperature".
• Race the engine as necessary to maintain "Coolant Temperature" at 90 to 95°C (194 to 203°F).
• If maintained for 3 minutes or more, the engine oil temperature may exceed 85°C (185°F).

Engine Oil Pressure Sensor/Switch "A" Signal Stuck High (P052024,P05202A)

DESCRIPTION Refer to DTC P052012. Click here DTC No. Detection Item DTC Detection Condition Trouble Area MIL Note P052024 Engine Oil Pressure Sensor/Switch "A" Signal Stuck High The oil pressure sensor output voltage is higher than the threshold value (1 trip detection logic)...

System Voltage Circuit Short to Ground or Open (P056014)

MONITOR DESCRIPTION The auxiliary battery supplies electricity to the ECM even when the ignition switch is off. This power allows the ECM to store data such as DTC history, Freeze Frame Data and fuel trim values...

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