Test Temperature Sensor With Multimeter

Disconnect the connector from the coolant temperature sensor temperature sending unit.

Test temperature sensor with multimeter.

Do this before running the engine it must be cold for this test. A bad engine coolant temperature sensor affects engine performance. Resistance in ohms cold resistance perimeters. You can do it at home using a digital multimeter and a cooking thermometer.

All you are going to nee. How to test a vw golf jetta bora mk4 coolant temperature sensor simple easy video tutorial. Turn on the engine and allow it to run for 5 minutes or until the temperature starts to go up. Look online for the hot and cold readings of your vehicle s temperature sensor and compare your readings to see if they closely match.

Any car in this video we will demonstrate how to test coolant temperature sensor on any car. The engine coolant temperature ect sensor test is simple and can help you fix your car faster. We ll start with a multimeter continuity test. Digital multimeters dmms with built in signal conditioning hardware measure various types of temperature sensors such as thermocouple resistance temperature detector rtd and thermistor.

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. Connect the black lead of the meter to the body of the cold sensor and the red to the. Measure the resistance across the terminal pins using a digital multimeter and write this value down. If you have a new sensor on hand and want to check it you can do this easy test.

Testing the iat sensor. Every make and model uses a specific temperature sensor which will give you specific readings whenever you test them with a multimeter. If not it needs to be replaced. You can take advantage of the way the iat sensor works to test sensor operation using an ohmmeter.

Disconnect the wires for the sensor at its power source point a in the diagram. You can easily disconnect your temperature sensor from the control system and validate the temperature sensor directly with your dmm. 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.

Plug the black probe into the com common port on your multimeter. Test the sensor again with the multimeter. How to test coolant temperature sensor.