Hi Malcolm we have one of these in at the momment,also non starter. We also had the p1327,among others. I managed to get it to start and was able to read live data,but when its a non starter we can get codes but now live data ! I believe the problem with ours is immobiliser,i awaiting security code from dealer so we can re-program key . Voltage at alternator B+ terminal should be NBV. Best of luck with yours,if you get a fix let me know.