Uploaded June 2026 | Updated September 2026, 2 weeks ago

---

Relays let low-current switches safely control high-current components, making them a key part of reliable vehicle electrical systems. In this video, we explain how they work and why they help protect circuits.

Heat is one of the biggest threats to many components on a vehicle. AMSOIL synthetic automatic transmission fluids help fight heat to give you dependable performance in the toughest conditions. 💪

Shop now at AMSOIL.com/AMSOIL.ca.

#AMSOIL #Auto #ElectricalSystems