How To Test Temp Sensor

How to control a coolant temperature sensor without removal.

How to test temp sensor.

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. Take the engine temperature on a location near the coolant temperature sensor. The reading should be 2000 ohm approx. You should see a much lower reading on the.

Connect the black lead of the meter to the body of the cold sensor and the red to the terminal. Get the engine surface temperature using an infrared thermometer or suitable cooking thermometer. Coolant temperature sensor test. Step 4 check with cold sensor.

Check the warm sensor in your engine. You could dive into your system s bios to find the information but that s a lot of hassle to find a. This video does not constitute or replace a real specialized technical man. The temperature sending unit more properly known as a temperature sensor is one of the most important sensors in your car.

If you are checking a brand new sensor you need to follow this. 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. If you have a new sensor on hand and want to check it you can do this easy test. Bizarrely windows doesn t offer any way to check your computer s cpu temperature.

Checking coolant temperature sensor problems. Then check the sensor in the warm sensor after the engine is run. Unplug the sensor electrical connector. Now that you ve located the ect sensor on your vehicle you re ready to troubleshoot it.

You should have a reading of approximately 2000 ohms.