Scania EACS DTC 258 Voltage class B

EACS EACS control unit · Scania

Code 258 (decimal). Some diagnostic tools show it in hexadecimal as 000102.

In short

The voltage class B is too low and the electric motor cannot run at the requested speed.

Applies to: EACS1

What does Scania EACS fault code 258 mean?

The voltage class B is too low and the electric motor cannot run at the requested speed.

What causes Scania DTC 258?

Low supply voltage from the rechargeable energy storage system in combination with a high compressor load.

How does the system react?

The air compressor is running at a reduced rotational speed.

What are the symptoms?

Low air pressure in the vehicle.

How to fix Scania EACS fault code 258?

  1. Check active fault codes for the BMU control system.
  2. Check the electric motor cable harness and connector.
  3. Check the electric motor fuse.

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

Code 258 in other Scania systems

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