How To Test Temp Sensor With Multimeter

Step 4 check with cold sensor.

How to test temp sensor with multimeter.

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. We ll start with a multimeter continuity test. You should have a reading of approximately 2000 ohms.

Plug the black probe into the com common port on your multimeter. To do this use your multimeter to measure the coolant temperature sensor s resistance value and then follow that up by connecting your multimeter s leads on one of the sensors of the electrical connector terminal and consequently the other lead on a different terminal on the electrical connector s sensor. Disconnect the wires for the sensor at its power source point a in the diagram. Plug the red probe into the vω port.

Look online for the hot and cold readings of your vehicle s temperature sensor and compare your readings to see if they closely match. We want to make sure that all the wires are connected correctly.