Yes, that could be but you need to some more checking with a multimeter. Yes, the jump terminal, test there but also would be a good idea to take that apart and clean it up anyway if your testing skills are lacking. We've had a few people get bamboozled by both of those.

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