Toyota Yaris: Sfi System / Engine Oil Pressure Sensor/Switch "A" Signal Stuck High (P052024,P05202A)

Toyota Yaris XP210 (2020-2022) Reapir and Service Manual / Engine & Hybrid System / G16e-gts (engine Control) / Sfi System / 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).

  • Open or short in oil pressure sensor (engine oil pressure and temperature sensor) circuit
  • Oil pressure sensor (engine oil pressure and temperature sensor)
  • ECM

Comes on

SAE: P0521

P05202A

Engine Oil Pressure Sensor/Switch "A" Signal Stuck in Range

The oil pressure sensor output voltage is the same value for a certain period of time (1 trip detection logic).

  • Open or short in oil pressure sensor (engine oil pressure and temperature sensor) circuit
  • Oil pressure sensor (engine oil pressure and temperature sensor)
  • ECM

Comes on

SAE: P0521

Related Data List

DTC No.

Data List

P052024

  • Engine Oil Temperature Sensor
  • Engine Oil Pressure

P05202A

MONITOR DESCRIPTION

The ECM calculates the engine oil pressure based on the output voltage of the oil pressure sensor. If any of the following are detected, the ECM will illuminate the MIL and store a DTC.

  • The oil pressure sensor output value differs from the specified value for a given engine speed (P052024).
  • The oil pressure sensor output voltage does not change for a certain period of time (P05202A).

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 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, gently depress the accelerator pedal until the engine speed increases to 3500 rpm for 1 minute, then release the accelerator pedal to return to the idling speed [B].
  10. Repeat step [B] 3 times or more.
  11. Enter the following menus: Powertrain / Engine / Trouble Codes [C].
  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: P052024 or P05202A.
  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 [C] again.

CAUTION / NOTICE / HINT

HINT:

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 P052024 OR P05202A)

(a) Read the DTCs.

Powertrain > Engine > Trouble Codes

Result

Proceed to

P052024 or P05202A and other DTCs are output

A

P052024 or P05202A is output

B

HINT:

If any DTCs other than P052024 or P05202A are output, troubleshoot those DTCs first.

A

GO TO DTC CHART

B

2.

INSPECT OIL PRESSURE SENSOR (ENGINE OIL PRESSURE AND TEMPERATURE SENSOR)

(a) Read the value displayed on the GTS.

(1) Start the engine.

(2) With the engine oil temperature at 75 to 85°C (167 to 185°F), read the "Engine Oil Pressure" with the engine speed at 1000 rpm, 2000 rpm and 3000 rpm.

Powertrain > Engine > Data List

Tester Display

Engine Speed

Engine Oil Temperature Sensor

Engine Oil Pressure

(b) Read the oil pressure using an oil pressure gauge with adapter.

(1) Install the oil pressure gauge with adapter.

Click here

(2) Start the engine.

(3) 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).

(c) Compare the Data List value and the oil pressure gauge reading.

OK:

Data List value and gauge reading are within +/-50 kPa (7.3 psi) of each other

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 ECM

NG

REPLACE OIL PRESSURE SENSOR (ENGINE OIL PRESSURE AND TEMPERATURE SENSOR)

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