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Which hazard does a memory saver introduce?

  • A.None
  • B.It prevents the airbag system from disarming, which is required before any work is carried out upon the vehicle
  • C.The system remains live so a short circuit is still possible
  • D.It overcharges the modules, which are supplied at a higher voltage than they would receive from the battery

Answer: C

The vehicle is not isolated, so the reason for disconnecting the battery in the first place may be defeated. Airbag work genuinely requires full isolation and a waiting period, which makes the last option an important related restriction. Working the distinction through on a single concrete case fixes it more firmly than any rule of thumb. Reading the definition literally, rather than recalling a summary, avoids the usual confusion.

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