Hi nascenta,most of us on VOCGB are aware of this site.Post your question on this site on the relevent model.Many people on this site dont use MVS.
On reading you'r original post you mention your PNP switch,you say you partially repaired it,that cured the problem for a while,your problem then returned.I personally think this is the link to your problem.As to error codes these need to be read a few times by your ecu to be flagged as an error.Like i say post a question on VOCForums.