S-MODE doesnt work, P2765 Error

Snek123

Hello,

I am solving a problem with my Nissan 370Z MT 2012 Sports packet.

Ever since I bought the car, S-MODE has been going crazy. Usually it works for a short time after starting the car and turning on S-MODE, maybe 1 minute, 5 minutes or sometimes (rarely) much longer and then it stops working, the message "WARNING S-MODE" appears on the dashboard and it doesn't work anymore until the car has not been in operation for a long time.

What I have observed and may be interesting or important is that the S-MODE usually works and tends to work for a longer period of time after pressure washing the car - not sure if it has to do with the pressure itself or maybe water getting somewhere, but it seems to definitely have some positive impact on the S-MODE functionality.

When the car was diagnosed, it reported a "P2765 engine error / input speed sensor B" error - something like that.

When the car was at an authorized Nissan workshop, I was told that it would be necessary to remove the transmission from the car and replace the entire "mechatronics" - I don't know if this is correct - supposedly the problem would be to replace only the input speed sensing sensor itself, and replacing the entire system could work at $2000-4000 so crazy.

Does anyone have any experience or suggestions please? Thanks