How To Test Temp Sensor

Attach the black lead of the volt ohm meter to the body of the cold sensor this is before turning the engine on.

How to test temp sensor.

Coolant temperature sensor test. If you are checking a brand new sensor you need to follow this. Get the engine surface temperature using an infrared thermometer or suitable cooking thermometer. Bizarrely windows doesn t offer any way to check your computer s cpu temperature.

This video does not constitute or replace a real specialized technical man. Checking coolant temperature sensor problems. You could dive into your system s bios to find the information but that s a lot of hassle to find a. Check the warm sensor in your engine.

Having established the continuity of the circuit let s check the source voltage but not at the source. 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. The reading should be 2000 ohm approx. Connect the black lead of the meter to the body of the cold sensor and the red to the terminal.

Take the engine temperature on a location near the coolant temperature sensor. Now that you ve located the ect sensor on your vehicle you re ready to troubleshoot it. Reconnect the sensor s power source. You should have a reading of approximately 2000 ohms.

If you have a new sensor on hand and want to check it you can do this easy test. You should see a much lower reading on the. Then check the sensor in the warm sensor after the engine is run. Step 4 check with cold 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.