Scania DDU DTC 4249 Faulty USB device connected to passenger side USB port

DDU DDU control unit · Scania

Code 4249 (decimal). Some diagnostic tools show it in hexadecimal as 001099.

In short

The USB port cannot communicate with the connected USB device.

Applies to: DDU1 (DDU)

What does Scania DDU fault code 4249 mean?

What causes Scania DTC 4249?

How does the system react?

What are the symptoms?

How to fix Scania DDU fault code 4249?

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.

Code 4249 in other Scania systems