What must be disconnected before removing some panels?

• A. Electrical connectors or battery
• B. Fuel lines
• C. Brake fluid line
• D. Windshield wiper motor

Answer: (A)

The key idea is safety around electrical systems when removing panels. Modern vehicles hide wiring and electronic components behind panels, so powering those circuits while you’re prying panels loose can cause shorts, shocks, or even accidental operation of devices like airbags. Disconnecting power—either by removing the battery or unplugging electrical connectors—shuts everything down and prevents harm or damage as you work. Fuel lines, brake lines, and a windshield wiper motor aren’t normally part of the panel-removal process and tampering with them can create leaks or other hazards, so they aren’t the right safety step here. By removing power first, you protect both you and the vehicle’s electrical system while access is gained to the panels.