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

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Engine & Hybrid System / G16e-gts (engine Control) / Sfi System / Engine Oil Pressure Too Low (P052400)

DESCRIPTION

Refer to DTC P052012

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Note

P052400

Engine Oil Pressure Too Low

When the engine is running, the oil pressure value output from the engine oil pressure and temperature sensor is less than the target value (1 trip detection logic).

  • Oil pump assembly
  • Engine oil pressure and temperature sensor
  • The engine oil level is low
  • The engine oil has deteriorated
  • ECM

Comes on

SAE: P0524

Related Data List/Freeze Frame Data

DTC No.

Data List/Freeze Frame Data

P052400

  • Engine Speed
  • Engine Oil Temperature Sensor
  • Coolant Temperature
  • Engine Oil Pressure

MONITOR DESCRIPTION

The ECM monitors the oil pressure based on the signal output from the engine oil pressure and temperature sensor.

MONITOR STRATEGY

Required Sensors/Components

Oil pressure sensor

Frequency of Operation

Once per driving cycle

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 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.

WIRING DIAGRAM

Refer to DTC P052012.

Click here

CAUTION / NOTICE / HINT

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.

PROCEDURE

1.

CHECK ENGINE OIL LEVEL

Click here

(a) Check the state of the oil level warning.

Result

Proceed to

Engine oil level is within the specified range and oil level warning is not displayed

A

Engine oil level is low and oil level warning is displayed

B

HINT:

If the oil level warning is not displayed even though the engine oil level is below the Low mark, or the oil level warning is displayed even though the engine oil level is within the specified range, inspect the oil level sensor and related parts.

B

GO TO STEP 4

A

2.

CHECK ENGINE OIL QUALITY

Click here

(a) Check that the engine oil is not contaminated with water, deteriorated, discolored or excessively thin.

OK:

The engine oil is not contaminated with water, deteriorated, discolored or excessively thin.

OK

GO TO STEP 6

NG

3.

REPLACE ENGINE OIL

HINT:

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

GO TO STEP 6

4.

CHECK FOR ENGINE OIL LEAK

(a) Check for engine oil leaks.

OK:

There are no engine oil leaks.

HINT:

If there are engine oil leaks, perform the following steps after repairing or replacing the malfunctioning parts.

NEXT

5.

ADD ENGINE OIL

(a) Add engine oil.

NOTICE:

Do not add engine oil to above the full level mark.

NEXT

6.

CLEAR DTC

(a) Clear the DTCs.

Powertrain > Engine > Clear DTCs

(b) Turn the ignition switch off and wait for at least 30 seconds.

NEXT

7.

CHECK WHETHER DTC OUTPUT RECURS (DTC P052400)

(a) Drive the vehicle in accordance with the driving pattern described in Confirmation Driving Pattern.

(b) Read the DTCs.

Powertrain > Engine > Trouble Codes

Result

Proceed to

P052400 is output

A

DTCs are not output

B

A

GO TO STEP 9

B

8.

READ VALUE USING GTS (ENGINE OIL PRESSURE)

(a) Start the engine and warm it up until the engine oil temperature is 75 to 85°C (167 to 185°F).

(b) According to the display on the GTS, read the Data List.

Powertrain > Engine > Data List

Tester Display

Engine Speed

Engine Oil Temperature Sensor

Engine Oil Pressure

Standard

Engine Speed

Engine Oil Temperature Sensor

Engine Oil Pressure

1000 rpm

75 to 85°C (167 to 185°F)

100 kPa(gauge) [15 psi(gauge)] or higher

2000 rpm

200 kPa(gauge) [29 psi(gauge)] or higher

3000 rpm

300 kPa(gauge) [44 psi(gauge)] or higher

OK

END

NG

9.

CHECK ENGINE OIL PRESSURE

(a) Install the oil pressure gauge with adapter.

Click here

(b) Start the engine.

(c) Maintain "Coolant Temperature" at 90 to 95°C (194 to 203°F) for 3 minutes, and then read the oil pressure gauge value at 1000 rpm, 2000 rpm and 3000 rpm.

Powertrain > Engine > Data List

Tester Display

Engine Speed

Coolant Temperature

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).
Standard

Engine Speed

Coolant Temperature

Engine Oil Pressure Gauge Value

1000 rpm

Maintained at 90 to 95°C (194 to 203°F) for 3 minutes

(Reference) Engine oil temperature: 75 to 85°C (167 to 185°F)

100 kPa (1.0 kgf/cm2, 15 psi) or higher

2000 rpm

200 kPa (2.0 kgf/cm2, 29 psi) or higher

3000 rpm

300 kPa (3.1 kgf/cm2, 44 psi) or higher

HINT:

Be sure to clear the DTCs after reinstalling the oil pressure sensor (engine oil pressure and temperature sensor) or reconnecting the oil pressure sensor (engine oil pressure and temperature sensor) connector, as DTCs may be stored.

OK

REPLACE ENGINE OIL PRESSURE AND TEMPERATURE SENSOR

NG

REPLACE OIL PUMP ASSEMBLY

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