Last Modified: 11-20-2023 6.11:8.1.0 Doc ID: RM1000000014TSI
Model Year Start: 2018 Model: Camry Prod Date Range: [06/2017 - 08/2018]
Title: A25A-FKS (ENGINE CONTROL): SFI SYSTEM: P019511; Engine Oil Temperature Sensor Circuit Short to Ground; 2018 MY Camry [06/2017 - 08/2018]

DTC

P019511

Engine Oil Temperature Sensor Circuit Short to Ground

DESCRIPTION

A thermistor, whose resistance changes in accordance with the engine oil temperature, is built into the engine oil temperature sensor. As the engine oil temperature decreases, the thermistor resistance increases and as the engine oil temperature increases, the thermistor resistance decreases. The engine oil temperature sensor is connected to the ECM. A voltage of 5 V is supplied from terminal THEO via resistor R of the ECM. Since resistor R and the engine oil temperature sensor are connected in series, both the resistance and the electrical potential of THEO are subject to change in accordance with a change in the engine oil temperature.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Memory

Note

P019511

Engine Oil Temperature Sensor Circuit Short to Ground

The engine oil temperature sensor output voltage is less than 0.13 V for 5 seconds or more (1 trip detection logic).
  • Short in engine oil temperature sensor circuit
  • Engine oil temperature sensor
  • ECM
  • Except Mexico Models: Comes on
  • For Mexico Models: Does not come on

DTC stored
  • SAE Code: P0197
  • DTC for Mexico Models: Applies

HINT:

When this DTC is output, check the engine oil temperature in the Data List. Enter the following menus: Powertrain / Engine / Data List / Engine Oil Temperature Sensor.

DTC No.

Engine Oil Temperature Sensor

Malfunction

P019511

Higher than 168°C (334°F)

Short to ground in THEO circuit

If the Data List values is normal it 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 and uses the sensor voltage to calculate the engine oil temperature. If the engine oil temperature sensor output voltage deviates from the normal operating range, the ECM determines that the engine oil temperature sensor circuit is malfunctioning and stores this DTC.

Example:

If the engine oil temperature sensor output voltage is less than 0.13 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 0.13 V [Higher than 168°C (334°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 2018 - 2024 MY Camry [03/2017 -        ]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM: DTC CHECK / CLEAR

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

    Click here 2018 - 2024 MY Camry [03/2017 -        ]; A25A-FKS (ENGINE CONTROL): SFI SYSTEM: DTC CHECK / CLEAR

  1. Connect the Techstream to the DLC3.
  2. Turn the ignition switch to ON.
  3. Turn the Techstream 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 Techstream 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.

    Techstream 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 Techstream. 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.

READ VALUE USING TECHSTREAM (CHECK FOR SHORT IN WIRE HARNESS)

*1

Engine Oil Temperature Sensor

*2

ECM

(a) Disconnect the engine oil temperature sensor connector.

(b) Connect the Techstream to the DLC3.

(c) Turn the ignition switch to ON.

(d) Turn the Techstream on.

(e) Enter the following menus: Powertrain / Engine / Data List / Engine Oil Temperature Sensor.

Powertrain > Engine > Data List

Tester Display

Engine Oil Temperature Sensor

(f) According to the display on the Techstream, read the Data List.

OK:

Techstream Display

Specified Condition

Engine Oil Temperature Sensor

-40°C (-40°F)
OK

REPLACE ENGINE OIL TEMPERATURE SENSOR

NG

2.

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

(a) Disconnect the engine oil temperature sensor connector.

(b) Disconnect the ECM connector.

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

Standard Resistance (except TMMK Made):

Tester Connection

Condition

Specified Condition

C83-1 (THEO) or C57-123 (THEO) - Body ground and other terminals

Always

10 kΩ or higher

Standard Resistance (for TMMK Made):

Tester Connection

Condition

Specified Condition

C83-1 (THEO) or C100-123 (THEO) - Body ground and other terminals

Always

10 kΩ or higher
OK

REPLACE ECM

NG

REPAIR OR REPLACE HARNESS OR CONNECTOR