Why must the battery be disconnected before airbag work?

Why must the battery be disconnected before airbag work?

• A. To prevent accidental deployment
• B. To prevent corrosion
• C. To prevent theft
• D. To prevent radio reset

Answer: (A)

Airbags deploy from stored energy in the system, so disconnecting the battery removes power and helps prevent an accidental deployment while you’re working. Airbag circuits can be energized by even small electrical signals, and the airbags themselves are explosive devices that can deploy with surprising speed and force, posing serious risk to you and others nearby. After disconnecting, you may need to wait a few minutes for any residual energy in the system to dissipate, then follow proper safety procedures before starting work again. The other options aren’t the main safety reason for disconnecting the battery. Preventing corrosion isn’t the primary concern here, and theft protection isn’t relevant to the immediate safety step. While a battery disconnect can affect radio settings, that’s a side effect, not the reason for disconnecting when working on airbag systems.

Airbags deploy from stored energy in the system, so disconnecting the battery removes power and helps prevent an accidental deployment while you’re working. Airbag circuits can be energized by even small electrical signals, and the airbags themselves are explosive devices that can deploy with surprising speed and force, posing serious risk to you and others nearby. After disconnecting, you may need to wait a few minutes for any residual energy in the system to dissipate, then follow proper safety procedures before starting work again.

The other options aren’t the main safety reason for disconnecting the battery. Preventing corrosion isn’t the primary concern here, and theft protection isn’t relevant to the immediate safety step. While a battery disconnect can affect radio settings, that’s a side effect, not the reason for disconnecting when working on airbag systems.