Scania DDU DTC 794 TSA control unit, no CAN communication

DDU DDU control unit · Scania

Code 794 (decimal). Some diagnostic tools show it in hexadecimal as 00031A.

In short

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

Applies to: DDU1 (DDU)

What does Scania DDU fault code 794 mean?

What causes Scania DTC 794?

How does the system react?

How to fix Scania DDU fault code 794?

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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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