EPROM (Electrically Programmable Read Only Memory)

2009 BMW 528xi StandardSECTION EPROM (Electrically Programmable Read Only Memory)
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An EPROM  is a removable chip with multiple connector pins which plug into the printed circuit of the control module.

When re-programming this type of control module, the EPROM must be removed and a new "blank" EPROM installed prior to programming.

Fig 1: Identifying EPROM Chip
G03402876Courtesy of BMW OF NORTH AMERICA, INC.
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