#ignition_switch  switch that operates a solenoid that closes a circuit to operate the starter
  supertype:  switch__switch_device  control consisting of a mechanical or electrical or electronic device for making or breaking or changing the connections in a circuit
  part of:  ignition_system
  part:  ignition_lock__lock  a restraint incorporated into the ignition switch to prevent the use of a vehicle by persons who do not have the key

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