How To Test Temp Sensor

Take the engine temperature on a location near the coolant temperature sensor.

How to test temp sensor. Having established the continuity of the circuit let s check the source voltage but not at the source. You should have a reading of approximately 2000 ohms. If you are checking a brand new sensor you need to follow this. The reading should be 2000 ohm approx.

Step 4 check with cold sensor. Get the engine surface temperature using an infrared thermometer or suitable cooking thermometer. Connect the black lead of the meter to the body of the cold sensor and the red to the terminal. Bizarrely windows doesn t offer any way to check your computer s cpu temperature.

You could dive into your system s bios to find the information but that s a lot of hassle to find a. It is the sensor that tells the computer when the engine has warmed up sufficiently for the computer to pay attention to the many other sensors on the engine and exhaust. You should see a much lower reading on the. Attach the black lead of the volt ohm meter to the body of the cold sensor this is before turning the engine on.

The temperature sending unit more properly known as a temperature sensor is one of the most important sensors in your car. Reconnect the sensor s power source. This video does not constitute or replace a real specialized technical man. How to control a coolant temperature sensor without removal.

Checking coolant temperature sensor problems. Then check the sensor in the warm sensor after the engine is run. Coolant temperature sensor test. If you have a new sensor on hand and want to check it you can do this easy test.

Disconnect the power wires at the sensor point c in the diagram or connection point closest to the sensor point b if the cable to your sensor cannot be disconnected at the sensor.