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 DETECTION CONDITION CHART
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| 2-1 | Internal communication error in mayday ECU | Mayday ECU |
| 2-2 | Checksum error in mayday ECU | Mayday ECU |
DTC CHART
| 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 histonc DTC, the system has already recovered normally and should be operating normally Clear historic DTCs |