AFAIK INPA is made for a DB9 serial port and windows XP so there is a lot of "fudging" needed. The battery and ignition signals will never show actual readings using a USB adapter. I haven't used BMW Scanner 1.4 but I have spent a stupid amount of time getting a diagnostic system working for my car so I think upallnight is right.

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1988 325is (purchased new) sold
2004 X5 3.0 2005 X3 2.5
2008 X5 3.0 (new to me)