On-Vehicle Inspection [07/2013 - ]
- INSPECT COOLING FAN OPERATION AT LOW TEMPERATURES (Below 92 °C (198 °F))
- Turn the ignition switch to ON.
- Check that the cooling fans stop.
If it does not, check the cooling fan relays and engine coolant temperature sensor, and check whether there is a disconnection or an open circuit between them.
- Disconnect the engine coolant temperature sensor connector.
- Check that the cooling fans operate.
If it does not, check the fuses, cooling fan relays, ECM and cooling fans, and check for a short circuit between the cooling fan relays and the engine coolant temperature sensor.
- Reconnect the engine coolant temperature sensor connector.
- INSPECT COOLING FAN OPERATION AT HIGH TEMPERATURES (Above 95 °C (203 °F))
- Start the engine, and raise the engine coolant temperature to above 95 °C (203 °F).
HINT:
The engine coolant temperature is detected by the engine coolant temperature sensor on the water outlet.
- Check that the cooling fans operate.
If it does not, replace the engine coolant temperature sensor.
- Start the engine, and raise the engine coolant temperature to above 95 °C (203 °F).