Scania MBS DTC 1027 Expansion unit B, electric power supply fault

MBS MBS control unit · Scania

Code 1027 (decimal). Some diagnostic tools show it in hexadecimal as 0403.

In short

The MBS control unit has detected that the supply voltage to expansion unit B has had an anomalous value.

Applies to: MBS3 (MBS)

What does Scania MBS fault code 1027 mean?

What causes Scania DTC 1027?

How does the system react?

What are the symptoms?

How to fix Scania MBS fault code 1027?

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

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