Cayenne957,2012 air suspension at driver side struck at high position
 

Hi everyone,
my cayenne 2012 suspension is struck at highest position at driver side(both front & rear tyre). If I operate it from switch light goes to all the position but not the suspension, there is no fault in cluster, neither in scan tool. Tried to calibrate it after putting the values, but it shows " control unit negative response" ......
Yet the compressor turns on by itself in interval of 1-2 minutes...
What do you guys suggest..
Thanks guys...