Electrical ground in a vehicle refers to the amount of ground that is used to ground the vehicle’s electrical system.
The electrical ground helps provide a safe path for leakage current and lightning and protects the vehicle’s electronic components from damage. Typically, electrical ground is provided by metal parts of the car, such as:
* Car body
* Engine
* Frame
* Brake discs and pads
* Fuel tank
* Exhaust system
Increasing the electrical mass in a vehicle can improve grounding, improve safety, and reduce the likelihood of electrical problems.