This is used when installing remote start products in 1995 and newer BMW models equipped with the EWS II Immobilizer system.
Directed Electronics(DEI) is the world leader in remote start technology and has pioneered a series of modules designed to allow the original equiptment to work along side the add-on aftermarket security system or remote starter. These modules are known as ByPass Modules or Transponders, etc. These items are required items in the installation of any security system or remote starter and do not compromise the original equiptment in any way.