Lexus LX570 AHC problem (2 Viewers)

[Ddpro34]

Dear all! Greetings to everyone, I'm writing because I'm really struggling with a problem with my LX. One morning, when I left, the right rear seat was low, and when I selected the option to raise or lower the suspension, it didn't do anything and was stiff. After moving it up or down several times, the left rear seat also remained low. Now, the suspension doesn't move at all and is down and dead, no longer working. When I move the selector, the screen flashes the "raise" or "lower" button, but it doesn't work. Using a scanner, it still doesn't move. I had the following codes: C1791 AVS Switch Circuit, C1792 Height Control Switch Circuit, C1794 Height Control Off Switch Circuit, C1795 Access Mode Switch Circuit.

However, after checking the operation and data with the scanner, everything appears to be working. I replaced the height sensor with an original one because the old one didn't show any values when raising and lowering with a jack, but it still doesn't work. The fuses and relays are all OK.

Any help is greatly appreciated.

 

[32cls6speedmt]

What year is ur lx. How many miles in your lx. Have your checked your ahc fluid level. Have you serviced your ahc fluid?

 

[Ddpro34]

What year is ur lx. How many miles in your lx. Have your checked your ahc fluid level. Have you serviced your ahc fluid?

Is a 2009 LX it has 96.000 miles, yes the fluid level is OK. No is the factory fluid, The strange thing is that everything was fine the day before. The next day it was the same, but when I left, the rear end fell and wouldn't lift anymore.