In this situation, are you obliged to apply the rule of limited trust?

According to Art. 4 of the Road Traffic Act, every road user has the right to assume that others will comply with the regulations, unless circumstances indicate the possibility of other behaviour. Approaching a pedestrian crossing where a pedestrian is present is precisely such a circumstance. In this situation, you must exercise special caution and be prepared for the possibility that the pedestrian might, for example, suddenly step onto the roadway.