Possible Causes

Right front height sensor signal amplitude above maximum
Right front height sensor linkage not connected
Right front height sensor or bracket loose
Right front height sensor bracket bent
Incorrect height calibration
Right front height sensor linkage toggled
Right front height sensor water ingress
Wiring to right front height sensor partial short to ground
Wiring to right front height sensor short to other cable
Right front height sensor electrical fault
Right front height sensor linkage bent
Incorrect height sensor installed