Last Modified: 07-31-2024 6.11:8.1.0 Doc ID: RM10000000255UX
Model Year Start: 2023 Model: GR Corolla Prod Date Range: [09/2022 -           ]
Title: G16E-GTS (ENGINE CONTROL): SFI SYSTEM: P019511; Engine Oil Temperature Sensor Circuit Short to Ground; 2023 - 2025 MY GR Corolla [09/2022 -        ]

DTC

P019511

Engine Oil Temperature Sensor Circuit Short to Ground

DESCRIPTION

The engine oil temperature sensor (oil pressure and temperature sensor) replaces the oil temperature with electrical signals and outputs them to the ECM.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Note

P019511

Engine Oil Temperature Sensor Circuit Short to Ground

The engine oil temperature sensor (oil pressure and temperature sensor) output voltage is below 0.535 V for 5 seconds or more (1 trip detection logic).
  • Open or short in engine oil temperature sensor (oil pressure and temperature sensor) circuit
  • Engine oil temperature sensor (oil pressure and temperature sensor)
  • ECM

Comes on

SAE Code: P0197

HINT:

When a DTC is output, check the Data List item "Engine Oil Temperature Sensor" using the GTS.

Click here 2023 - 2025 MY GR Corolla [09/2022 -        ]; G16E-GTS (ENGINE CONTROL): SFI SYSTEM: DATA LIST / ACTIVE TEST

DTC No.

Engine Oil Temperature Sensor

Malfunction

P019511

-40°C (-40°F)
  • Short to ground in THEO circuit
  • Short in EPEO to THEO circuit
  • Open in VCPE 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.

MONITOR DESCRIPTION

The ECM monitors the engine oil temperature sensor (oil pressure and temperature sensor) and uses the sensor voltage to calculate the engine oil temperature. If the engine oil temperature sensor (oil pressure and temperature sensor) output voltage deviates from the normal operating range, the ECM determines that the engine oil temperature sensor (oil pressure and temperature sensor) circuit is malfunctioning and stores this DTC.

Example:

If the engine oil temperature sensor (oil pressure and temperature sensor) output voltage is below 0.535 V for 5 seconds or more, the ECM will store this DTC.

MONITOR STRATEGY

Related DTCs

P0197: Engine oil temperature sensor range check (low voltage)

Required Sensors/Components (Main)

Engine oil temperature sensor

Required Sensors/Components (Related)

-

Frequency of Operation

Continuous

Duration

5 seconds

MIL Operation

Immediate

Sequence of Operation

None

TYPICAL ENABLING CONDITIONS

Monitor runs whenever the following DTCs are not stored

None

All of the following conditions are met

-

Battery voltage

8 V or higher

Ignition switch

ON

Starter

Off

TYPICAL MALFUNCTION THRESHOLDS

Engine oil temperature sensor voltage [Engine oil temperature]

Less than 0.535 V [Less than -55°C (-67°F)]

CONFIRMATION DRIVING PATTERN

HINT:

  • After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

    Click here 2023 - 2025 MY GR Corolla [09/2022 -        ]; G16E-GTS (ENGINE CONTROL): SFI SYSTEM: DTC CHECK / CLEAR

  • When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.

    Click here 2023 - 2025 MY GR Corolla [09/2022 -        ]; G16E-GTS (ENGINE CONTROL): SFI SYSTEM: DTC CHECK / CLEAR

  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 [A].
  7. Turn the GTS on.
  8. Wait 10 seconds or more [B].
  9. Enter the following menus: Powertrain / Engine / Trouble Codes [C].
  10. 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.
  11. Enter the following menus: Powertrain / Engine / Utility / All Readiness.
  12. Input the DTC: P019511.
  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

    HINT:

    • If the judgment result is NORMAL, the system is normal.
    • If the judgment result is ABNORMAL, the system has a malfunction.
    • If the judgment result is INCOMPLETE, perform steps [B] through [C] again.
    • [A] to [C]: Normal judgment procedure.

      The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.

    • When clearing the permanent DTCs, do not disconnect the cable from the battery terminal or attempt to clear the DTCs during this procedure, as doing so will clear the universal trip and normal judgment histories.

WIRING DIAGRAM

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 HARNESS AND CONNECTOR

HINT:

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

(a) Disconnect the engine oil temperature sensor (oil pressure and temperature sensor) connector.

(b) Turn the ignition switch to ON.

(c) Measure the voltage according to the value(s) in the table below.

Standard Voltage:

Tester Connection

Switch Condition

Specified Condition

C41-3(VC) - C41-2(E2)

Ignition switch ON

4.5 to 5.5 V

C41-4(THEO) - C41-2(E2)

Ignition switch ON

3.0 to 5.5 V

*a

Front view of wire harness connector

(to Engine Oil Temperature Sensor (Oil Pressure and Temperature Sensor))

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

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

Standard Resistance:

Tester Connection

Switch Condition

Specified Condition

C41-3(VC) - C41-4(THEO)

Ignition switch off

171 to 189 kΩ
OK

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

NG

2.

CHECK HARNESS AND CONNECTOR (ENGINE OIL TEMPERATURE SENSOR (OIL PRESSURE AND TEMPERATURE SENSOR) - ECM)

(a) Disconnect the engine oil temperature sensor (oil pressure and temperature sensor) connector.

(b) Disconnect the ECM connector.

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

Standard Resistance:

Tester Connection

Condition

Specified Condition

C41-3(VC) - C142-77(VCPE)

Always

Below 1 Ω

C41-4(THEO) or C142-101(THEO) - Body ground and other terminals

Always

10 kΩ or higher
OK

REPLACE ECM 2023 MY GR Corolla [09/2022 - 11/2022]; G16E-GTS (ENGINE CONTROL): ECM: REMOVAL 2023 - 2025 MY GR Corolla [11/2022 -        ]; G16E-GTS (ENGINE CONTROL): ECM: REMOVAL

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR