| P0603 Unidade de comando - Erro interno |
| Electronic fuel pump relay is not switched, engine receives no fuel |
| no communication with ECU possible / error code reading not possible |
| After a long drive the engine stops and does not start anymore |
| no control to the injectors |
| only one injector is not controlled by the ECU |
| Engine does not start permanently or sometimes weather-dependent (temperature-sensitive) |
| Diverse komponenten werden nicht angesteuert, dauerhaft oder temperaturbhängig |
Bosch Electronic Service