Scania EMU DTC 170259 ECS wake-up signal, short circuit to earth or open circuit

EMU EMU control unit · Scania

Code 170259 (decimal). Some diagnostic tools show it in hexadecimal as 029913.

In short

The control unit reports that the ECS wake-up signal voltage is too low.

Applies to: EMU1 (ECS)

What does Scania EMU fault code 170259 mean?

What causes Scania DTC 170259?

How does the system react?

What are the symptoms?

How to fix Scania EMU fault code 170259?

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.