DTC 2-1: EEPROM Communication Error; DTC 2-2: EEPROM Checksum Error: Description
These DTCs are output when an error occurs in the CPU of the mayday ECU.
| DTC No. |
DTC Detection Condition |
Trouble Area |
| 2-1 |
Internal communication error in mayday ECU |
Mayday ECU |
| 2-2 |
Checksum error in mayday ECU |
Mayday ECU |
NOTE:
| Current DTC |
Historic DTC only |
| Disconnect and reconnect battery. Check for current DTCs. If DTC returns, replace mayday ECU and mayday battery (backup battery). |
If this is only a historic DTC, the system has already recovered normally and should be operating normally. Clear historic DTCs. |