Possible Causes

NOTE: This DTC may be set by a fault relating to any of the height sensors. It will only set if fault is present and vehicle speed is greater than 55kph (35mph) for more than 25 seconds.

Incorrect height calibration, e.g. height sensor removed and re-installed or renewed without re-calibrating
Height sensor linkage damaged/bent (after calibration)
Height sensor linkage loose/disconnected
Height sensor bracket damaged/bent
Height sensor harness wiring short circuit to ground, short circuit to power or high resistance
Height sensor fault