Test Temperature Sensor With Multimeter

Resistance in ohms cold resistance perimeters.

Test temperature sensor with multimeter. If not it needs to be replaced. A bad engine coolant temperature sensor affects engine performance. How to test a vw golf jetta bora mk4 coolant temperature sensor simple easy video tutorial. You can do it at home using a digital multimeter and a cooking thermometer.

We ll start with a multimeter continuity test. Turn on the engine and allow it to run for 5 minutes or until the temperature starts to go up. Digital multimeters dmms with built in signal conditioning hardware measure various types of temperature sensors such as thermocouple resistance temperature detector rtd and thermistor. Do this before running the engine it must be cold for this test.

We want to make sure that all the wires are connected correctly. Every make and model uses a specific temperature sensor which will give you specific readings whenever you test them with a multimeter. The engine coolant temperature ect sensor test is simple and can help you fix your car faster. Test the sensor again with the multimeter.

Testing the iat sensor. Look online for the hot and cold readings of your vehicle s temperature sensor and compare your readings to see if they closely match. Connect the black lead of the meter to the body of the cold sensor and the red to the. If you have a new sensor on hand and want to check it you can do this easy test.

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. You can easily disconnect your temperature sensor from the control system and validate the temperature sensor directly with your dmm. Any car in this video we will demonstrate how to test coolant temperature sensor on any car. Plug the black probe into the com common port on your multimeter.

All you are going to nee. Plug the red probe into the vω port. Disconnect the connector from the coolant temperature sensor temperature sending unit. Step 4 check with cold sensor.

If the number on the multimeter is lower than the reading you got in step 2 the sensor is working correctly. The iat sensor is a thermistor that changes electrical resistance with changes in temperature. How to test coolant temperature sensor.