How To Test Temp Sensor

Get the engine surface temperature using an infrared thermometer or suitable cooking thermometer.

How to test temp sensor.

If you have a new sensor on hand and want to check it you can do this easy test. The temperature sending unit more properly known as a temperature sensor is one of the most important sensors in your car. Check the warm sensor in your engine. How to control a coolant temperature sensor without removal.

Take the engine temperature on a location near the coolant temperature sensor. 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. Bizarrely windows doesn t offer any way to check your computer s cpu temperature. Checking coolant temperature sensor problems.

Having established the continuity of the circuit let s check the source voltage but not at the source. Connect the black lead of the meter to the body of the cold sensor and the red to the terminal. This video does not constitute or replace a real specialized technical man. Then check the sensor in the warm sensor after the engine is run.

Reconnect the sensor s power source. Attach the black lead of the volt ohm meter to the body of the cold sensor this is before turning the engine on. Now that you ve located the ect sensor on your vehicle you re ready to troubleshoot it. 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.

The reading should be 2000 ohm approx. You should have a reading of approximately 2000 ohms. Step 4 check with cold sensor. Coolant temperature sensor test.

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