Scania OCS DTC 209409 Knock sensor T133

OCS OCS control unit · Scania

Code 209409 (decimal). Some diagnostic tools show it in hexadecimal as 033201.

In short

The value from the knock sensor is repeatedly lower than the limit value.

Applies to: OCS1

What does Scania OCS fault code 209409 mean?

What causes Scania DTC 209409?

How does the system react?

What are the symptoms?

How to fix Scania OCS fault code 209409?

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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 209409 in other Scania systems