Uncommon Signals for ECU/LRU Testers

In making ECU and LRU testers, we come across a lot of common signal types; then there's the rest.  While almost every high channel count system has one or two signals that are fairly unique, even the uniques begin to fall into some common buckets after a while.  These signals usually represent 10% or less of a given system, though nearly 100% of systems have something more custom than not.  It goes without saying that when we find an uncommon signal type - whether it’s on this list or not - we first start by fully assessing the requirements and go from t