MBS 1121 Scania Sequential half-bridge controller, expansion unit K, short circuit

MBS MBS control unit · Scania

Code 1121 (decimal). Some diagnostic tools show it in hexadecimal as 0461.

In short

The shared pin on expansion unit K, which is controlled by the sequential half-bridge controller, is short circuited.

Applies to: MBS3 (MBS)

What does Scania MBS fault code 1121 mean?

What causes Scania DTC 1121?

How does the system react?

What are the symptoms?

How to fix Scania MBS fault code 1121?

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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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