Scania EMU DTC 8311 Water valve V246, short circuit to battery

EMU EMU control unit · Scania

Code 8311 (decimal). Some diagnostic tools show it in hexadecimal as 002077.

In short

The control unit gives an implausibly high voltage, which indicates a short circuit to the battery.

Applies to: EMU1 (ECS)

What does Scania EMU fault code 8311 mean?

What causes Scania DTC 8311?

How does the system react?

What are the symptoms?

How to fix Scania EMU fault code 8311?

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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.