Possible Causes

NOTE: This DTC may be set by a fault relating to any of the height sensors

Tire severely under-inflated
Incorrect height calibration, e.g. height sensor removed and reinstalled or renewed without re-calibrating
Height sensor circuit(s) - Short circuit to ground, short circuit to power, open circuit, high resistance
Height sensor linkage loose/disconnected
Height sensor linkage damaged/bent (after calibration)
Height sensor bracket damaged/bent (after calibration)
Height sensor fault