Scania AMS DTC 4432 Communication error, calculated temperature upstream of SCR catalytic converter intake from EMS

AMS AMS control unit · Scania

Code 4432 (decimal). Some diagnostic tools show it in hexadecimal as 001150.

In short

The EEC control unit has detected an error in the CAN communication from EMS regarding the calculated temperature upstream of the SCR catalytic converter intake (at the silencer).

Applies to: AMS2

What does Scania AMS fault code 4432 mean?

What causes Scania DTC 4432?

How to fix Scania AMS fault code 4432?

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 4432 in other Scania systems

Compare code 4432 in every system →