Scania EMU DTC 8321 Water valve V247, short circuit to voltage supply

EMU EMU control unit · Scania

Code 8321 (decimal). Some diagnostic tools show it in hexadecimal as 002081.

In short

The control unit indicates too high a voltage.

Applies to: EMU1 (ECS)

What does Scania EMU fault code 8321 mean?

What causes Scania DTC 8321?

How does the system react?

What are the symptoms?

How to fix Scania EMU fault code 8321?

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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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