What do fused links or circuit breakers prevent in a vehicle's electrical system?

Fused links and circuit breakers are critical safety devices in a vehicle's electrical system designed specifically to prevent electrical overloads. When an electrical circuit experiences an excessive amount of current beyond its capacity, these devices respond by interrupting the flow of electricity. This interruption helps to prevent damage to wiring, components, and the overall electrical system, which could otherwise lead to short circuits or even fire hazards.

By breaking the circuit during an overload, fused links and circuit breakers ensure that the electrical system operates within safe limits, protecting both the vehicle's functionality and the safety of its occupants. This role is essential because electrical overloads can not only cause immediate failure of electronic components but can also pose serious fire risks if not addressed.

In contrast, the other options provided do not relate to the specific function of fused links or circuit breakers; they address different aspects of vehicle mechanics and safety unrelated to the electrical system's immediate protection against overloads.