When disabling the airbag(SRS) on a vehicle for service, the technician should

• A. Disconnect the airbag module connector
• B. Remove the SRS fuse and negative battery cable for a minimum of 15 minutes
• C. Remove the SRS fuse and positive battery cable
• D. Disconnect the battery entirely and wait 30 minutes

Answer: (B)

The important idea is safely removing power from the airbag system so there’s no stored energy that could cause accidental deployment during service. The best approach is to remove the SRS fuse and disconnect the negative battery cable for a minimum of 15 minutes. Disconnecting the negative terminal eliminates the return path for current, which reduces the risk of arcing or unintended activation. Removing the SRS fuse guarantees there’s no power flowing to the SRS module itself. The 15-minute wait lets any residual charge in capacitors or internal circuitry dissipate to a safe level before you begin work.

The other options aren’t as safe or effective. Unplugging only the airbag connector may still leave energy stored in the system or module, which isn’t ideal for service safety. Removing a fuse with the positive battery cable doesn’t provide the same reliable disconnection path for the vehicle’s grounding and can be unsafe. Disconnecting the entire battery and waiting longer than necessary omits the explicit disconnection of the SRS power path and isn’t the standard procedure for ensuring complete de-energization.