The alarm has taken to going off regularly during the night and the indicator flashes 7 times. According to the manual this indicates "tampering with battery cables or cutting emergency key cables". None of that is going on so I'm wondering if anyone has any ideas. The battery is charged at 12.65V which is good and there is zero resistance measured between the battery negative and the chassis. I've scanned all the modules for codes with MES and there are none stored.