| The sulfur acid solution used as the electrolyte in a battery. | |
| Diagnostic trouble code | |
| A braking system that uses cast iron drums mounted to the wheel hubs. Hydraulic pressure from the brake system forces pistons in the wheel cylinder to press friction wind brake shoes against the inside of the drum, stopping its rotation. | |
| The conditions that exist in a working electrical current. A current that is unbroken, not open. |