Last Modified: 05-13-2024 |
6.11:8.1.0 |
Doc ID: RM100000001BGWQ |
Model Year Start: 2019 |
Model: Corolla Hatchback |
Prod Date Range: [06/2018 - 03/2019] |
Title: M20A-FKS (ENGINE CONTROL): SFI SYSTEM: P019511; Engine Oil Temperature Sensor Circuit Short to Ground; 2019 - 2020 MY Corolla Corolla Hatchback [06/2018 - 03/2019] |
DTC
|
P019511
|
Engine Oil Temperature Sensor Circuit Short to Ground
|
DESCRIPTION
The engine oil 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
|
Memory
|
Note
|
P019511
|
Engine Oil Temperature Sensor Circuit Short to Ground
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The engine oil temperature sensor output voltage is less than 0.535 V for 5 seconds or more (1 trip detection logic).
|
-
Short in engine oil temperature sensor circuit
-
Oil pressure and temperature sensor (engine oil temperature sensor)
-
ECM
|
Comes on
|
DTC stored
|
SAE Code: P0197
|
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
|
-40°C (-40°F)
|
-
Short to ground in THEO circuit
-
Short in EPEO to THEO circuit
-
Open in VCPE circuit
|
If the Data List values is normal it may be due to a temporary recovery from the malfunction condition. Check for intermittent problems.
Click here
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 0.535 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
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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
|
Engine switch
|
On (IG)
|
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
-
When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
Click here
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Connect the Techstream to the DLC3.
-
Turn the engine switch on (IG).
-
Turn the Techstream on.
-
Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
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Turn the engine switch off and wait for at least 30 seconds.
-
Turn the engine switch on (IG) [A].
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Turn the Techstream on.
-
Wait 10 seconds or more [B].
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Enter the following menus: Powertrain / Engine / Trouble Codes [C].
-
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.
-
Enter the following menus: Powertrain / Engine / Utility / All Readiness.
-
Input the DTC: P019511.
-
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
|
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.
|
CHECK HARNESS AND CONNECTOR
|
*a
|
Front view of wire harness connector
(to Engine Oil Temperature Sensor)
|
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 connector.
(b) Turn the engine switch on (IG).
(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 (GND)
|
Engine switch on (IG)
|
4.5 to 5.5 V
|
C41-4 (TOUT) - C41-2 (GND)
|
Engine switch on (IG)
|
0.54 to 4.86 V
|
(d) Turn the engine 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 (TOUT)
|
Engine switch off
|
171 to 189 kΩ
|
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:
Tester Connection
|
Condition
|
Specified Condition
|
C41-3 (VC) - C76-99 (VCPE)
|
Always
|
Below 1 Ω
|
C41-4 (TOUT) or C76-123 (THEO) - Body ground and other terminals
|
Always
|
10 kΩ or higher
|
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
|