Scania EST DTC 598 Degradation valve position

EST EST control unit · Scania

Code 598 (decimal). Some diagnostic tools show it in hexadecimal as 0256.

In short

The signal from the valve position sensor about the position of the degradation valve differs from the requested position from the control unit.

Applies to: EST1 (EST)

What does Scania EST fault code 598 mean?

What causes Scania DTC 598?

How to fix Scania EST fault code 598?

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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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