- Short to +B in THA circuit
- Open in THA circuit
- Open in E2G circuit
| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM1000000026EFE |
| Model Year Start: 2023 | Model: Corolla | Prod Date Range: [09/2022 - ] |
| Title: 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: P011015; Intake Air Temperature Sensor 1 Bank 1 Circuit Short to Battery or Open; 2023 - 2025 MY Corolla Corolla HV [09/2022 - ] | ||
|
DTC |
P011015 |
Intake Air Temperature Sensor 1 Bank 1 Circuit Short to Battery or Open |
DESCRIPTION
Refer to DTC P011011.
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![2023 - 2025 MY Corolla Corolla HV [09/2022 - ]; 2ZR-FXE (ENGINE CONTROL): SFI SYSTEM: P011011; Intake Air Temperature Sensor 1 Bank 1 Circuit Short to Ground+](/t3Portal/stylegraphics/info.gif)
HINT:
When DTC P011015 is stored, the ECM enters fail-safe mode. During fail-safe mode, the intake air temperature is estimated to be 20°C (68°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 |
|---|---|---|---|---|---|---|
|
P011015 |
Intake Air Temperature Sensor 1 Bank 1 Circuit Short to Battery or Open |
The intake air temperature sensor output voltage is higher than 3.76 V for 0.5 seconds or more (1 trip detection logic). |
|
Comes on |
DTC stored |
|
HINT:
When this DTC is output, check the intake air temperature in the Data List. Enter the following menus: Powertrain / Engine / Data List / Intake Air Temperature.
|
DTC No. |
Intake Air Temperature |
Malfunction |
|---|---|---|
|
P011015 |
Higher than 123°C (253°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
The ECM monitors the sensor voltage and uses this value to calculate the intake air temperature. When the intake air temperature sensor output voltage deviates from the normal operating range, the ECM interprets this as a malfunction in the intake air temperature sensor circuit, illuminate the MIL and stores a DTC.
Example:
If the intake air temperature sensor output voltage is higher than 3.76 V for 0.5 seconds or more, the ECM will illuminate the MIL and store this DTC.
MONITOR STRATEGY
|
Related DTCs |
P0113: Intake air temperature sensor range check (high voltage) |
|
Required Sensors/Components (Main) |
Intake air temperature sensor (mass air flow meter sub-assembly) |
|
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
|
Intake air temperature sensor voltage [Intake air temperature] |
Higher than 3.76 V [Higher than 123°C (253°F)] |
CONFIRMATION DRIVING PATTERN
Refer to DTC P011011.
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WIRING DIAGRAM
Refer to DTC P011011.
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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 HARNESS AND CONNECTOR |
|
*a |
Front view of wire harness connector (to Mass Air Flow Meter Sub-assembly) |
HINT:
Make sure that the connector is properly connected. If it is not, securely connect it and check for DTCs again.
(a) Disconnect the mass air flow meter sub-assembly 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 |
Condition |
Specified Condition |
|---|---|---|
|
C26-4 (VCC) - C26-2 (E2G) |
Ignition switch ON |
4.8 to 5.2 V |
|
C26-1 (THA) - C26-2 (E2G) |
Ignition switch ON |
4.8 to 5.2 V |
(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 |
Condition |
Specified Condition |
|---|---|---|
|
C26-2 (E2G) - Body ground |
Ignition switch off |
Below 1 Ω |
|
C26-4 (VCC) - C26-1 (THA) |
Always |
2.565 to 2.835 kΩ |
HINT:
Perform "Inspection After Repair" after replacing the mass air flow meter sub-assembly.
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| OK |
|
|
|
2. |
CHECK HARNESS AND CONNECTOR (INTAKE AIR TEMPERATURE SENSOR - ECM) |
(a) Disconnect the mass air flow meter sub-assembly 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 |
|---|---|---|
|
C26-1 (THA) - C147-139 (THA) |
Always |
Below 1 Ω |
|
C26-2 (E2G) - C147-107 (E2G) |
Always |
Below 1 Ω |
|
C26-1 (THA) or C147-139 (THA) - Other terminals |
Always |
10 kΩ or higher |
| OK |
|
REPLACE ECM
|
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|