You have access to the card and cable?? that would be great if we could borrow or rent for a few hours. We have access to the DRBIII unit, just need the Crossfire card and cable. the cable includes a multiplexer

Thanks for psoting the PCM/SKREEM replacement info. I had seen that in the manual. These modules have a way to learn from each other in the event only one of them is changed. The procedure is similar to the STAR Diagnostic System but more automated in the STAR system. In STAR it is called Drive Authorization and it does everything and you have to do is turn the key when it tell you to.