| no communication with ECU possible / error code reading not possible |
| Sensor reference voltage faulty (5V sensors power supply) |
| 2264: CAN bus / data cable between readout and engine control unit, no communication |
| 7066: CAN bus / data cable between readout and engine control unit, no communication |
| Hauptsicherung vom Steuergerät wird dauerhaft ausgelöst |
| Connector is oxidized, damaged by water |
Bosch Electronic Service