Hi I recently had a suspension fault. I had the code read by a garage and it said the front left & right suspension hieght sensors had a problem. I also noticed on my 4x4 screen there is 4 indicator for the hieght and the 2 front ones flash red when i'm in access mode. I changed the 2 front sensors and it 's still the same. Is it possible that it is only a calibration problem.