Scania CMS DTC 809 CAN communication with the engine control unit

CMS CMS control unit · Scania

Code 809 (decimal). Some diagnostic tools show it in hexadecimal as 0329.

In short

There is no CAN message on vehicle speed from the engine control unit.

Applies to: CMS1 (CMS)

What does Scania CMS fault code 809 mean?

What causes Scania DTC 809?

How does the system react?

How to fix Scania CMS fault code 809?

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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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