Other information:
Replacement And Air Bleeding
Never remove the radiator cap when the engine is hot. Serious scalding
could be caused by hot fluid under high pressure escaping from the radiator.
...
Remove and Installation
When the oil sensor signal fault occurs, refer to the DTC guide.
1.
Drain the engine oil.
2.
Remove the oil level sensor (A) after disconnecting the oil level sensor
connector (B).
...