Scania DDU DTC 773 Engine control unit, no CAN communication

DDU DDU control unit · Scania

Code 773 (decimal). Some diagnostic tools show it in hexadecimal as 000305.

In short

The DDU control unit is not receiving CAN messages from the engine control unit.

Applies to: DDU1 (DDU)

What does Scania DDU fault code 773 mean?

What causes Scania DTC 773?

How does the system react?

How to fix Scania DDU fault code 773?

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This information is for guidance only. Always follow the manufacturer workshop manual and safety procedures; if in doubt, contact an authorised workshop.

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