- Short to +B in THW circuit
- Open in THW circuit
- Open in ETHW circuit
| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM1000000026N88 |
| Model Year Start: 2023 | Model: Corolla | Prod Date Range: [09/2022 - ] |
| Title: 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: P011515; Engine Coolant Temperature Sensor 1 Circuit Short to Battery or Open; 2023 - 2025 MY Corolla Corolla HV [09/2022 - ] | ||
|
DTC |
P011515 |
Engine Coolant Temperature Sensor 1 Circuit Short to Battery or Open |
DESCRIPTION
Refer to DTC P011511.
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![2023 - 2025 MY Corolla Corolla HV [09/2022 - ]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: P011511; Engine Coolant Temperature Sensor 1 Circuit Short to Ground+](/t3Portal/stylegraphics/info.gif)
HINT:
When DTC P011515 is stored, the ECM enters fail-safe mode. During fail-safe mode, the engine coolant temperature is estimated to be 80°C (176°F) by the ECM. Fail-safe mode continues until a pass condition is detected.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
Memory |
Note |
|---|---|---|---|---|---|---|
|
P011515 |
Engine Coolant Temperature Sensor 1 Circuit Short to Battery or Open |
Diagnosis condition:
Abnormal condition:
Malfunction time:
Trip logic:
Detection conditions:
Sensors/components used for detection:
|
|
Comes on |
DTC stored |
|
HINT:
When this DTC is output, check the engine coolant temperature in the Data List. Enter the following menus: Powertrain / Engine / Data List / Coolant Temperature.
|
DTC No. |
Coolant Temperature |
Malfunction |
|---|---|---|
|
P011515 |
-40°C (-40°F) |
|
If the Data List value is normal it may be due to a temporary recovery from the malfunction condition. Check for intermittent problems.
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MONITOR DESCRIPTION
When the power switch is turned on (IG) and the output voltage of the engine coolant temperature sensor is higher than 4.91 V for 0.5 seconds or more, the ECM determines that the engine coolant temperature sensor circuit is malfunctioning and illuminates the MIL and stores a DTC.
MONITOR STRATEGY
|
Related DTCs |
P0118: Engine coolant temperature sensor range check (high voltage) |
|
Required Sensors/Components (Main) |
Engine coolant temperature sensor |
|
Required Sensors/Components (Related) |
- |
|
Frequency of Operation |
Continuous |
|
Duration |
0.5 seconds |
|
MIL Operation |
Immediate |
|
Sequence of Operation |
None |
TYPICAL ENABLING CONDITIONS
|
Monitor runs whenever the following DTCs are not stored |
None |
|
Both of the following conditions are met |
- |
|
Auxiliary battery voltage |
8 V or higher |
|
Power switch |
On (IG) |
TYPICAL MALFUNCTION THRESHOLDS
|
Engine coolant temperature sensor voltage [Engine coolant temperature] |
Higher than 4.91 V [Less than -59°C (-74°F)] |
CONFIRMATION DRIVING PATTERN
Refer to DTC P011511.
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WIRING DIAGRAM
Refer to DTC P011511.
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CAUTION / NOTICE / HINT
NOTICE:
-
Vehicle Control History may be stored in the hybrid vehicle control ECU if the engine is malfunctioning. Certain vehicle condition information is recorded when Vehicle Control History is stored. Reading the vehicle conditions recorded in both the freeze frame data and Vehicle Control History can be useful for troubleshooting.
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(Select Powertrain in Health Check and then check the time stamp data.)
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-
If any "Engine Malfunction" Vehicle Control History item has been stored in the hybrid vehicle control ECU, make sure to clear it. However, as all Vehicle Control History items are cleared simultaneously, if any Vehicle Control History items other than "Engine Malfunction" are stored, make sure to perform any troubleshooting for them before clearing Vehicle Control History.
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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 TERMINAL VOLTAGE (ENGINE COOLANT TEMPERATURE SENSOR) |
|
*a |
Front view of wire harness connector (to Engine Coolant Temperature Sensor) |
(a) Disconnect the engine coolant temperature sensor connector.
(b) Turn the power switch on (IG).
(c) Measure the voltage according to the value(s) in the table below.
Standard Voltage:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
C46-2 (THW) - Body ground |
Power switch on (IG) |
0 to 5.5 V |
| NG |
|
|
|
2. |
READ VALUE USING TECHSTREAM (COOLANT TEMPERATURE) |
|
*1 |
Engine Coolant Temperature Sensor |
*2 |
ECM |
|
*a |
Front view of wire harness connector (to Engine Coolant Temperature Sensor) |
- |
- |
(a) Disconnect the engine coolant temperature sensor connector.
(b) Connect terminals 2 (THW) and 1 (E2) of the engine coolant temperature sensor connector on the wire harness side.
(c) Connect the Techstream to the DLC3.
(d) Turn the power switch on (IG).
(e) Turn the Techstream on.
(f) Enter the following menus: Powertrain / Engine / Data List / Coolant Temperature.
Powertrain > Engine > Data List
|
Tester Display |
|---|
|
Coolant Temperature |
(g) According to the display on the Techstream, read the Data List.
OK:
|
Techstream Display |
Specified Condition |
|---|---|
|
Coolant Temperature |
140°C (284°F) |
HINT:
Perform "Inspection After Repair" after replacing the engine coolant temperature sensor.
Click here
| OK |
|
REPLACE ENGINE COOLANT TEMPERATURE SENSOR
|
|
|
3. |
CHECK HARNESS AND CONNECTOR (ENGINE COOLANT TEMPERATURE SENSOR - ECM) |
(a) Disconnect the engine coolant 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 |
|---|---|---|
|
C46-2 (THW) - C147-124 (THW) |
Always |
Below 1 Ω |
|
C46-1 (E2) - C147-123 (ETHW) |
Always |
Below 1 Ω |
| OK |
|
REPLACE ECM
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
4. |
CHECK HARNESS AND CONNECTOR (ENGINE COOLANT TEMPERATURE SENSOR - ECM) |
(a) Disconnect the engine coolant 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 |
|---|---|---|
|
C46-2 (THW) or C147-124 (THW) - Other terminals |
Always |
10 kΩ or higher |
| OK |
|
REPLACE ECM
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|