Impressive Tips About How To Check Car Relays

How to test an automotive relay 1. Check your service manual’s electrical chapter and wiring. Look at the instructions on the fuse box, and find the horn fuse.

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Here is how you test a car relay the correct way.

How to check car relays. Turn or press your vehicle’s ignition to accessory. First, you have removed it from the fuse box. Its the old switcharoo method.

How to test a car relay and how a car relay works. Locate the relay, either under the dash or in the engine bay. How to tell if a relay is bad in a car step 1:

If the relay is damaged internally, it can cause burning or melting of wiring. Handle the relay gingerly and try to avoid dropping it. Use a circuit tester to check whether current is reaching the relay.

The next method is a bit more involved. Clip one wire to earth on an unpainted part of the car and probe the feed terminal on the relay. Really the one and only way it should be tested.my cheap multimeter in the video:

Before you can test the relay, you need to find it. All you really need to do this is a multimete. In this video we use a ford relay and an audi for examples.

How to test relay any relay voltmeter: First off, locate the relay fuse box. You will need to remove the relay and take it somewhere like a workbench where you can test it.