Test Temperature Sensor With Multimeter

The engine coolant temperature ect sensor test is simple and can help you fix your car faster.

Test temperature sensor with multimeter.

If the number on the multimeter is lower than the reading you got in step 2 the sensor is working correctly. We want to make sure that all the wires are connected correctly. Testing the iat sensor. Turn on the engine and allow it to run for 5 minutes or until the temperature starts to go up.

You can easily disconnect your temperature sensor from the control system and validate the temperature sensor directly with your dmm. How to test coolant temperature sensor. If you have a new sensor on hand and want to check it you can do this easy test. Plug the black probe into the com common port on your multimeter.

You can do it at home using a digital multimeter and a cooking thermometer. Plug the red probe into the vω port. Disconnect the connector from the coolant temperature sensor temperature sending unit. Digital multimeters dmms with built in signal conditioning hardware measure various types of temperature sensors such as thermocouple resistance temperature detector rtd and thermistor.

Step 4 check with cold sensor. You can take advantage of the way the iat sensor works to test sensor operation using an ohmmeter. Any car in this video we will demonstrate how to test coolant temperature sensor on any car. If not it needs to be replaced.

A bad engine coolant temperature sensor affects engine performance. Look online for the hot and cold readings of your vehicle s temperature sensor and compare your readings to see if they closely match. How to test a vw golf jetta bora mk4 coolant temperature sensor simple easy video tutorial. Measure the resistance across the terminal pins using a digital multimeter and write this value down.

All you are going to nee. If you do not see anything that is more than 200 ohms in difference the coolant temperature sensor is defective and will need to be replaced. Resistance in ohms cold resistance perimeters. Every make and model uses a specific temperature sensor which will give you specific readings whenever you test them with a multimeter.

Test the sensor again with the multimeter. The iat sensor is a thermistor that changes electrical resistance with changes in temperature. We ll start with a multimeter continuity test.