How Electrical Relays Work in Your Car – Electrical Troubleshooting

Electrical troubleshooting. How electrical relays work in your car, DIY with Scotty Kilmer. How to diagnose a bad electrical relay and change it. How to troubleshoot the electrical system in your car. What electrical relays are on your car and what they do. DIY car repair with Scotty Kilmer, an auto mechanic for the last 45 years.

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