The temperature sensor on a Lexus IS 300 is located on the cylinder head, behind the intake manifold.
It is a small, black sensor with two wires attached to it.
Here are the steps on how to locate the temperature sensor on a Lexus IS 300:
1. Open the hood of your car.
2. Locate the intake manifold. It is a large, black plastic part that sits on top of the engine.
3. Follow the intake manifold to the back of the engine.
4. You will see a small, black sensor with two wires attached to it. This is the temperature sensor.
If you need to replace the temperature sensor, it is recommended that you consult with a qualified mechanic.
