Many electrical components in a vehicle or machine are controlled by a relay. So if a component isn’t working because electricity isn’t getting to it, there is a possibility the relay may be faulty.

First, I made sure the multimeter was off and unplugged from any circuit. The Kaiweets KM601 has a back panel held together with a few small screws, so I grabbed a precision screwdriver and carefully ...

We may receive a commission on purchases made from links. Electrical diagnostic work is one of the most challenging parts of automotive repair. It can be incredibly daunting for beginners or DIY ...

We may receive a commission on purchases made from links. You hop in the car, turn the key or push the start button ... nothing. Or maybe one of your headlights goes out when you're driving at night ...

You hop in the car, turn the key or push the start button ... nothing. Or maybe one of your headlights goes out when you're driving at night on a highway. Maybe during a long road trip, your radio ...