Scania MBS DTC 1090 Position sensor valve, primary roof unit, implausible value

MBS MBS control unit · Scania

Code 1090 (decimal). Some diagnostic tools show it in hexadecimal as 0442.

In short

The position sensor for the valve, primary roof unit, indicates an implausible value.

Applies to: MBS3 (MBS)

What does Scania MBS fault code 1090 mean?

What causes Scania DTC 1090?

What are the symptoms?

How to fix Scania MBS fault code 1090?

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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.

Code 1090 in other Scania systems