Scania ALLISON DTC 9841 Control of supply voltage (HSD2) high

ALLISON Allison automatic gearbox · Scania

Code 9841 (decimal). Some diagnostic tools show it in hexadecimal as 2671.

In short

The control unit has detected more than 6 V in the HSD2 circuit after two solenoids have indicated a fault.

Applies to: A4

What does Scania ALLISON fault code 9841 mean?

What causes Scania DTC 9841?

How does the system react?

How to fix Scania ALLISON fault code 9841?

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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.