If the CPU cannot be activated, or it fails, the EPS indicator comes on, but the DTC is not memorized.

The memory can hold any number of DTCs. However, when the same DTC is detected more than once, the most recent DTC is written over the prior DTC, therefore only one occurence is memorized.

The lowest DTC is indicated first. The DTCs are indicated in ascending order, not in the order that they occurred.

The DTCs are memorized in the EEPROM (non-volatile memory) therefore the memorized DTCs cannot be erased by disconnecting the battery. Perform the specified procedures to clear DTCs.