Audi A4 Turbocharger Location: Model Year 2001

Hello, I can no longer turn off the ECON function on my car's climate control system, which means the air conditioning is no longer working. The error code displayed in the climate control system's memory is as follows:

819
High-pressure generator G65.
29-00
Short circuit to ground.


It might be defective, or a cable might be disconnected.
Can someone tell me where this sensor is located in the car and what it costs?



Thank you so much in advance, see you later...
#


Best, Chriss.

It should be somewhere in the climate control compartment, under the glove compartment. I think.