Scania MBS DTC 1089 Position sensor, water valve convector passenger area, implausible value

MBS MBS control unit · Scania

Code 1089 (decimal). Some diagnostic tools show it in hexadecimal as 0441.

In short

The position sensor for the water valve convector, passenger area, displays an implausible value The value is outside the valid range 10-6,000 ohm.

Applies to: MBS3 (MBS)

What does Scania MBS fault code 1089 mean?

What causes Scania DTC 1089?

What are the symptoms?

How to fix Scania MBS fault code 1089?

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.

Code 1089 in other Scania systems