Scania EMU DTC 8739 Water valve V194, feedback signal, signal fault

EMU EMU control unit · Scania

Code 8739 (decimal). Some diagnostic tools show it in hexadecimal as 002223.

In short

The water valve has reported PWM signals outside the approved range to the control unit.

Applies to: EMU1 (ECS)

What does Scania EMU fault code 8739 mean?

What causes Scania DTC 8739?

How does the system react?

What are the symptoms?

How to fix Scania EMU fault code 8739?

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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 8739 in other Scania systems