Scania EMU DTC 3153 Contactor unit R126, positive contactor, short circuit to earth or open circuit

EMU EMU control unit · Scania

Code 3153 (decimal). Some diagnostic tools show it in hexadecimal as 000C51.

In short

The control unit indicates that the positive contactor output signal voltage is too low.

Applies to: EMU1 (ECS)

What does Scania EMU fault code 3153 mean?

What causes Scania DTC 3153?

How does the system react?

What are the symptoms?

How to fix Scania EMU fault code 3153?

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 3153 in other Scania systems