Problem Symptoms Table [10/2018 - ]
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2024 Lexus UX 250h, 2023 Lexus UX 250h, 2022 Lexus UX 250h, 2021 Lexus UX 250h, and 2020 Lexus UX 250h. However, it is still accessible from the selected car via links, so may be relevant.
HINT:
- Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
- Inspect the fuses related to this system before inspecting the suspected areas below.
COOLING FAN SYSTEM
| Symptom | Suspected Area | Link |
|---|---|---|
| Cooling fans do not operate | Engine coolant temperature sensor | Refer to INSPECTION [10/2018 - ] |
| Cooling fan motor LH | - | |
| Cooling fan motor RH | - | |
| ECM power source circuit | Refer to ECM Power Source Circuit [10/2018 - ] | |
| Wire harness | - | |
| ECM | Refer to TERMINALS OF ECM [10/2018 - ] | |
| Cooling fan does not operate (Cooling fan motor) | Cooling fan circuit | Refer to Cooling Fan Circuit [10/2018 - ] |
| Cooling fans do not stop (continue to operate) | Engine coolant temperature sensor | Refer to INSPECTION [10/2018 - ] |
| Wire harness | - | |
| Cooling fan motor LH | - | |
| Cooling fan motor RH | - | |
| ECM | Refer to TERMINALS OF ECM [10/2018 - ] | |
| Cooling fan does not stop (continues to operate) (Cooling fan motor) | Cooling fan circuit | Refer to Cooling Fan Circuit [10/2018 - ] |
| Cooling fan speed does not change | Cooling fan circuit | Refer to Cooling Fan Circuit [10/2018 - ] |
| ECM | Refer to TERMINALS OF ECM [10/2018 - ] |