Problem Symptoms Table [12/2013 - 11/2016]
WARNING: This page is about a different car, the 2016 Toyota Highlander, 2015 Toyota Highlander, and 2014 Toyota Highlander. 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 [12/2013 - 11/2016] |
| Cooling fan circuit | Refer to Cooling Fan Circuit [12/2013 - 11/2016] | |
| Cooling fan motor | Refer to PROCEDURE - Step 1 | |
| No. 2 cooling fan motor | Refer to PROCEDURE - Step 2 | |
| FAN NO. 1 relay | Refer to ON-VEHICLE INSPECTION [12/2013 - 11/2016] | |
| Cooling fan ECU | Refer to ON-VEHICLE INSPECTION [12/2013 - 11/2016] | |
| ECM | Refer to REMOVAL [12/2013 - 11/2016] | |
| Cooling fans do not stop | Engine coolant temperature sensor | Refer to INSPECTION [12/2013 - 11/2016] |
| Cooling fan circuit | Refer to Cooling Fan Circuit [12/2013 - 11/2016] | |
| Cooling fan ECU | Refer to ON-VEHICLE INSPECTION [12/2013 - 11/2016] | |
| ECM | Refer to REMOVAL [12/2013 - 11/2016] | |
| Cooling fan speed does not change | Cooling fan circuit | Refer to Cooling Fan Circuit [12/2013 - 11/2016] |
| Cooling fan ECU | Refer to ON-VEHICLE INSPECTION [12/2013 - 11/2016] | |
| ECM | Refer to REMOVAL [12/2013 - 11/2016] |