Gearbox in emergency mode: costs for sensor repair?

Hello, I have a VW Golf and the gearbox is in emergency mode. According to the diagnosis, the error code is P173600, which indicates a problem with the sensors. What costs should I expect for the repair of the sensors? Many thanks in advance for your help!

(Translated from German)

Start by checking the transmission fluid level and condition, as low or dirty fluid can cause sensor issues. If the fluid is fine, inspect the wiring and connectors to the sensors for any visible damage or corrosion. If these checks don't resolve the issue, it might be necessary to replace the sensors, which can vary in cost depending on your location and the specific sensor. Let me know how it goes or if you have further questions!

Thanks for the quick feedback, where is the gearbox control unit in the gearbox or outside the gearbox? Because some garages told me that the car would take two weeks and should stay in the garage, they also told me that the transmission control unit can be repaired.

(Translated from German)

The gearbox control unit, also known as the transmission control module (TCM), is typically located outside the gearbox, often under the hood or near the transmission itself. It's unusual for a repair to take two weeks unless parts are hard to find or there are additional complications. If the TCM needs repair, it might be worth getting a second opinion. Let me know if you have more questions or need further assistance!