I just realized that neither Multiecuscan or AlfaOBD support the 124. Doesn't look like the FIAT package on my Foxwell scanner support it either. So what bidirectional scan tool is needed? Something Mazda related? It uses the same Magneti Marelli ECU that the Giulietta does which is supported, but it can't read it.

It also seemed like my Foxwell scanner couldn't read some ancillary modules that it should be able to read. Does the 124 need a security gateway bypass like the Alfas do?