Scania DDU DTC 791 The steering wheel switch is not responding

DDU DDU control unit · Scania

Code 791 (decimal). Some diagnostic tools show it in hexadecimal as 000317.

In short

The DDU control unit is missing communication with the switches on the steering wheel.

Applies to: DDU1 (DDU)

What does Scania DDU fault code 791 mean?

What causes Scania DTC 791?

How does the system react?

What are the symptoms?

How to fix Scania DDU fault code 791?

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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.

Code 791 in other Scania systems

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