Adopt a Variant Code

The preferred method of coding a replacement module is by "Adopting" the code from the old module, since this method prevents accidentally entering the wrong code which may occur when trying to manually enter the code. If the control module cannot communicate on the diagnostic link the manual input method will be necessary (refer to MANUALLY ENTERING A VARIANT CODE  ).

Fig 1: Identifying Variant Code Adopting Chart

Courtesy of BMW OF NORTH AMERICA, INC.