Scania EMS DTC 904 Temperature sensor 217, temperature too high or too low

EMS Engine Management System · Scania

Code 904 (decimal). Some diagnostic tools show it in hexadecimal as 000388.

In short

The control unit interprets that the exhaust gas temperature sensor value is too high or too low in relation to the engine temperature.

Applies to: EMS10

What does Scania EMS fault code 904 mean?

What causes Scania DTC 904?

How to fix Scania EMS fault code 904?

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.

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

Code 904 in other Scania systems

Compare code 904 in every system →