PC Wrong Pzb-magnet Without Signal Or Sign

At Ruhr-Sieg-North between km 10,6 and 10,8 from Finnentrop to Hagen is a PZB Magnet who have a wrong Value 100 Meters before the signal. If the signal in frond shows green-yellow or yellow, you have to use "PZB-Wachsam" at this Magnet too. This should be a 500hz-Magnet?