EEPROM (Electrically Erasable Programmable Read Only Memory)
WARNING: This page does not describe the selected car, but rather 136 other vehicles, including the 2008 BMW 760Li, 2008 BMW 650i, 2007 BMW Z4, 2007 BMW X5, and 2007 BMW X3. However, it is still accessible from the selected car via links, so may be relevant.
An EEPROM is a soldered in chip which is not removable from the control module. As their name Soldered in EEPROM implies, EEPROMS can be electrically erased and reprogrammed without opening the control module. This is known as "Flash Programming".
In either case, the E or EE PROM stores the loaded program data including:
- Characteristic maps for;
Ignition, Injection, Purge control, etc...
- Characteristic curves.
- Control constants.