DTC P0115-2A: Engine Coolant Temperature Sensor 1 Signal Stuck in Range [09/2022 - ]: Procedure
WARNING: This page is about a different car, the 2025 Toyota GR Corolla, 2024 Toyota GR Corolla, and 2023 Toyota GR Corolla. However, it is still accessible from the selected car via links, so may be relevant.
- CHECK ANY OTHER DTCS OUTPUT (IN ADDITION TO DTC P0115-2A)
- Read the DTCs.
Powertrain > Engine > Trouble Codes
Result
Result Proceed to P0115-2A and other DTCs are output A P0115-2A is output B HINT:
If any DTCs other than P0115-2A are output, troubleshoot those DTCs first.
Result:
A
GO TO DTC CHART
Result:
B
See step 2
- Read the DTCs.
- INSPECT WATER INLET WITH THERMOSTAT SUB-ASSEMBLY
Refer to INSPECTION [09/2022 - ]
HINT:
Perform "Inspection After Repair" after replacing the engine coolant temperature sensor.
Refer to INITIALIZATION [09/2022 - ]
Result
Proceed to OK NG Result:
OK
REPLACE ENGINE COOLANT TEMPERATURE SENSOR. Refer to REMOVAL [09/2022 - ]
Result:
NG
REPLACE WATER INLET WITH THERMOSTAT SUB-ASSEMBLY. Refer to REMOVAL [09/2022 - 11/2022] , or refer to REMOVAL [11/2022 - ]