What does each relay do on firewall on 1997 Buick lesabre?

In a 1997 Buick LeSabre, the relays in the firewall primarily control the operation of essential electrical systems. The most notable relays include those for the fuel pump, which powers the fuel delivery system, and the starter relay, which engages the starter motor when the ignition is turned on. Relays help manage power distribution and protect circuits from overloads, ensuring that critical components function efficiently. Additionally, other relays may control the cooling fan and various accessory systems.