Scania EMS DTC 403 Fuel pressure sensor T111

EMS Engine Management System · Scania · 2 variants

Code 403 (decimal). Some diagnostic tools show it in hexadecimal as 0193.

In short

The voltage in the circuit has been higher than normal.

Variant 1

Applies to: EMS S7EMS S8

What does Scania EMS fault code 403 mean?

What causes Scania DTC 403?

How does the system react?

How to fix Scania EMS fault code 403?

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.

Variant 2: Fuel pressure sensor, shorted to high voltage or open circuit

Applies to: EMS10

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

Code 403 in other Scania systems

Compare code 403 in every system →