Scania EMU DTC 20546 Vehicle charging inlet box R130, Control Pilot relay output signal, short circuit to battery

EMU EMU control unit · Scania

Code 20546 (decimal). Some diagnostic tools show it in hexadecimal as 005042.

In short

The control unit indicates too high a voltage.

Applies to: EMU1 (ECS)

What does Scania EMU fault code 20546 mean?

What causes Scania DTC 20546?

How does the system react?

What are the symptoms?

How to fix Scania EMU fault code 20546?

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.