DTC 2-3: Digital Signal Processor Communication Error; DTC 2-4: GPS Communication Error: Description
These DTCs are output when a communication error occurs between the CPU and each interface in the mayday ECU
DTC DETECTION CONDITION CHART
| DTC Code | DTC Detection Condition | Trouble Area |
|---|---|---|
| 2-3 | DSP interface communication error in mayday ECU | Mayday ECU |
| 2-4 | GPS interface communication 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 historic DTC, the system has already recovered normally and should be operating normally Clear historic DTCs |