How To Test Temp Sensor

Then check the sensor in the warm sensor after the engine is run.

How to test temp sensor.

The temperature sending unit more properly known as a temperature sensor is one of the most important sensors in your car. Now that you ve located the ect sensor on your vehicle you re ready to troubleshoot it. Unplug the sensor electrical connector. How to control a coolant temperature sensor without removal.

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. Step 4 check with cold sensor. You should have a reading of approximately 2000 ohms. You should see a much lower reading on the.

Coolant temperature sensor test. If you have a new sensor on hand and want to check it you can do this easy test. 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.

Attach the black lead of the volt ohm meter to the body of the cold sensor this is before turning the engine on. You could dive into your system s bios to find the information but that s a lot of hassle to find a. Bizarrely windows doesn t offer any way to check your computer s cpu temperature. Having established the continuity of the circuit let s check the source voltage but not at the source.

Checking coolant temperature sensor problems. Take the engine temperature on a location near the coolant temperature sensor. The reading should be 2000 ohm approx. 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.

If you are checking a brand new sensor you need to follow this.