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Hello My Insignia B failed to start last week. it had started in the morning but the dash lit up like a christmas tree (low battery, faults on BCM etc) but running for 20 mins just made it worse. Now it doesnt turn over and have lots of faults ( theft deterrent being one of them). Changing the battery has not helped, and jump starting from another car/battery may have damaged/disabled various BCMs? A local garage has managed to revive some of the control units but say that the remainder and the ECU are not communicating. They also said that the (new) battery had completely discharged and that charging it overnight may have assisted in recovering communications with several of the BCMs. I have it booked into a specialist in 2 weeks time that has high level diagnostics, but my questions are: 1) Is it likely that I can fully charge the battery and progress beyond where i am by “resetting” BCMs that have been disabled rather than damaged? 2) Is it worthwhile in any way investing in a high quality diagnostic scanner (AUTEL MX808 or similar) or will this still leave me unable to communicate at a high enough level with the car or determine that specific components definitely need replacing? thank you.