How To Test 3 Pin Flasher Relay With Multimeter

Testing the flasher relay is a straightforward task that should take you about 15 minutes.

How to test 3 pin flasher relay with multimeter. If your flashers begin to blink quickly or erratically there s a good chance the relay is going bad and it should be tested. You will find the resistance of the relay coil. To check the coil s resistance with a multimeter take a multimeter and put it on the ohmmeter settingthen connect the multimeter probes on any two terminals of relay s coil. All no contacts should read infinite resistance to the corresponding pole.

To test the conventional type of flasher unit use a circuit tester between the terminal marked b on the unit and the earth. This video shows you how an automotive relay works and how you can test it using an digital multimeter. Https amzn to 2kplxwf testing a relay is not as complicated as people think. Flashers or hazard lights are controlled by a flasher relay an plug in electrical device.

Use a digital multimeter dmm to test the resistance between each pole of the relay and the corresponding nc and no contacts for that pole. How to test relay any relay voltmeter. Test the de energized condition of the relay contacts. You will need a 12v power supply or c.

Place the center connector of the test bulb on the battery. This is the easiest way to do it out of the car and t. The procedure of checking the coil s resistance of a relay with a multimeter. With the ignition on earth the tester and probe the feed wire connector the lamp should light.

Wrap the long stripped end of the second piece of wire around the base cylinder of the test bulb securing it with a twist and connect the short stripped end to the l prong using the third clip.