A fault code doesn’t yet mean the unit or sensor itself is faulty: often it’s the plug and connector leading to it.
Possible causes
- Fluid leak (seals, pan, cooler lines)
- Fluid was not topped up after repair or replacement
What you can do yourself
- Do not drive until the level is restored
- Check the level per the manual, inspect for leaks
- Top up with the correct fluid or see a technician
On Oleg’s website:Transmission adaptation ↗
The explanation comes from the error code reference in the AvtoElektrik PRO app.