DTC 2-1: EEPROM Communication Error; DTC 2-2: EEPROM Checksum Error: Description
These DTCs are stored when an error occurs in the CPU of the telephone ECU assembly.
| DTC Code |
DTC Detection Condition |
Trouble Area |
| 2-1 |
An internal communication error in the telephone ECU assembly. |
Telephone ECU assembly |
| 2-2 |
A checksum error in the telephone ECU assembly. |
Telephone ECU assembly |
NOTE:
| Current DTC |
Historic DTC only |
| Disconnect and reconnect battery. Check for current DTCs. If DTC returns, replace telephone ECU assembly 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. |