Why should you take precautions when working on automotive electrical systems?

Taking precautions when working on automotive electrical systems is essential primarily to avoid electrical shock and potential fires. Automotive electrical systems operate at various voltages, including the high voltage found in systems such as electric and hybrid vehicles. Working without proper safety measures can lead to serious injuries from electrical shock, which can be life-threatening.

Additionally, improper handling of electrical components can result in short circuits or damage to sensitive electronic parts, increasing the risk of electrical fires. These fires can not only harm the vehicle but also pose a danger to individuals nearby. Therefore, ensuring safety while working on these systems is crucial to prevent accidents and maintain a safe working environment.

While fuel efficiency, vehicle weight, and acceleration are related to automotive performance, they are not relevant to the immediate safety concerns when working with electrical systems.