DTC 2-3: Digital Signal Processor Communication Error; DTC 2-4: GPS Communication Error: Description
These DTCs are stored when a communication error occurs between the CPU and each interface in the telephone ECU assembly.
| DTC Code |
DTC Detection Condition |
Trouble Area |
| 2-3 |
A DSP interface communication error in the telephone ECU assembly. |
Telephone ECU assembly |
| 2-4 |
A GPS interface communication 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. |