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Old 04-08-2004, 03:26 PM
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Kaz Kaz is offline
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Location: OC, CA
Join Date: Dec 2001
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Mein Auto: 01 325iT, 88 M6
The majority of the time, there's no direct answer for that. Pin number and color code are easy; they're there on the diagrams. Function? Sometimes there's really no way to know, especially since so many of them are 'black-boxed' and BMW doesn't want to tell you.

Sometimes, tracing that wire through to whatever's on the other end helps. Light wiring on a E46 generally centralizes back to the LCM in the dash. Good thing about that is that we've already figured that part out.
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