Hey all, I have a '91 325i and two days ago, I removed the rear premium amplifier and replaced the starter. The next day, I turned on my car but the windows, heater/ac, and sunroof wouldn't work. It only happens when the engine is running, if the key is in the "on" position but the engine's off then everything works fine. Can someone help me out?
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Windows/Heater don't work when the engine's on
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It sounds like your unloader relay isn't working correctly. Did you swap in the exact same model of starter? I ran into the same problem when I replaced my starter, there are two different configurations of solenoid and depending on which one you have you need to connect them a little differently. Check out this thread; http://r3vlimited.com/board/showthread.php?t=140181. There's a really good explanation of how the circuit works from DaveSmed.
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