Scania EMD DTC 9251 Particulate filter

EMD EMD control unit · Scania · 2 variants

Code 9251 (decimal). Some diagnostic tools show it in hexadecimal as 2423.

In short

The temperature upstream of the particulate filter deviates from the expected value during regeneration.

Variant 1

Applies to: EMD0

What does Scania EMD fault code 9251 mean?

What causes Scania DTC 9251?

How does the system react?

How to fix Scania EMD fault code 9251?

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

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

Variant 2: Particulate filter, unexpected temperature during regeneration

Applies to: EMD1

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

Code 9251 in other Scania systems

Compare code 9251 in every system →