DTC 2-3, 2-4: Digital Signal Processor Communication Error; GPS Communication Error: Description
WARNING: This page is about a different car, the 2007 Lexus GX 470. However, it is still accessible from the selected car via links, so may be relevant.
These DTCs are output when a communication error occurs between the CPU and each interface in the mayday ECU assembly.
DTC DETECTION CONDITION AND TROUBLE AREA
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| 2-3 | DSP interface communication error in mayday ECU | Mayday ECU assembly |
| 2-4 | GPS interface communication error in mayday ECU | Mayday ECU assembly |
NOTICE:
CURRENT DTC AND HISTORIC DTC REFERENCE
| 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. |