Scania EMU DTC 8964 Water valve V521, feedback signal, short circuit to earth

EMU EMU control unit · Scania

Code 8964 (decimal). Some diagnostic tools show it in hexadecimal as 002304.

In short

The control unit indicates too low a voltage.

Applies to: EMU1 (ECS)

What does Scania EMU fault code 8964 mean?

What causes Scania DTC 8964?

How does the system react?

What are the symptoms?

How to fix Scania EMU fault code 8964?

Read the full explanation with Premium

Causes, system reaction, symptoms and step-by-step repair instructions for every fault code are available to Premium members.

Full explanations of every code and brand
Causes, symptoms and repair steps
New brands and codes included

Get Premium – 7,50 € / month I already have an account

Yearly plan: pay 10 months, get 12. Cancel at any time.

This information is for guidance only. Always follow the manufacturer workshop manual and safety procedures; if in doubt, contact an authorised workshop.