Scania TMS DTC 257 Clutch actuator, CAN communication timeout

TMS Transmission Management System · Scania

Code 257 (decimal). Some diagnostic tools show it in hexadecimal as 0101.

In short

The Transmission Management System (TMS) has detected a communication failure with the clutch actuator (ECA).

Applies to: TMS3 (TMS)

What does Scania TMS fault code 257 mean?

What causes Scania DTC 257?

How does the system react?

How to fix Scania TMS fault code 257?

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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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