Mmm DTC B1656: EEPROM Write Error & Mmm DTC B1658: EEPROM Checksum Error: Description

Memory Mirror Module (MMM) performs self-tests on its EEPROM. MMM DTC B1656 and B1658 will set if MMM detects a problem with the EEPROM. When MMM DTC B1656 is set, module will store value being written on another block of EEPROM. When MMM DTC B1658 is set, module will use default values for blocks of EEPROM that are corrupt. DTCs will clear when self-test indicates that EEPROM is okay.