MJ150- I have fitted a new glow plug relay but there is still 0 current coming from it on switching the ignition on, there is current going in to the relay. So I assume it must be something that is not actually telling the relay to send power to the plugs? Would the FiatEcuScan diagnostic software and (any) 409.1 OBD2 cable likely to tell me anything I can make sense of? And where would I plug it in??? thx.