DTC B1007: EEPROM Write Error: Description
WARNING: This page is about a different car, the 2002 Oldsmobile Aurora. However, it is still accessible from the selected car via links, so may be relevant.
A control module performs internal tests on EEPROM each time module performs a write function to a memory address in EEPROM. Module reads back data that has been written and compares it to data. DTC will clear when control module makes a successful write to EEPROM.