Maybe its the wheel .. buttons may function different .. you may need to do more searches on the forum as to someone who has installed a similar wheel as yours on T5.1 ... somebody must have done it and had similar problems.. be patient someone will post a reply.. in meantime trawl through ALL the MFSw threads.. you may find the answer .. you have done the hard work of the wheel change , repair wires and at the final hurdle of the coding .. diagram does show pin 17 at BCM for Euro 5 emission standard... maybe why you get ! When connected pin 36