Air suspension fault

[Beeza]

I took the car to my local mechanic who used his PIWIS to diagnose the air suspension fault which is displayed when you start the car.

The compressor, relay and power supply seem to be in working order by using basic electrical trouble shooting, however there is a problem with the electronics that my mechanic has never seen. The fault code shown up was "1781 Extreme vehicle tilt"

Any ideas anyone?

[Loren]

Fault code 1781 -- Extreme vehicle inclination

Possible cause of fault

- Mechanical fault (detected by a plausibility check)

- Vehicle level sensors need to be calibrated

[wvicary]

Will the code clear and the system level?

[Beeza]

Yes, the code will clear and the system will work. It will go from full low to full high, but only until you shut it off and re start it.

The fault then comes back again.

How does one re calibrate the level sensors?

[wvicary]

Does the system remain level and at the selected ride height over night? You should be able to read the height of each air spring on the scan tool to see if they are within limits.