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BMW 3-Series (E90 E92) Forum > E90 / E92 / E93 3-series Technical Forums > AUDIO/VIDEO + BLUETOOTH + Electronics/Alarm/Software > Need some help deciphering my fuse box inputs



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      09-26-2016, 12:32 PM   #1
mashimarho
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Need some help deciphering my fuse box inputs

Hey everyone, I've got a basic question. I'm helping a friend install my headlights, which has a power line that needs to be connected to the fuse. However, I have multiple things and cannot tell him exactly what to do.
I have 3 things going on. Airlift suspension, radar, and the headlights tapped to the same one. I also have the JB4 in the there. What should I tell him about the headlights that are to be tapped (I think either slot 2, 3, or 4)? There looks to be one wire from each headlight that merges into one.
Also, what should I tell him as instructions and materials he needs?



Thanks in advance.
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      09-26-2016, 06:13 PM   #2
ctuna
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There is a whole sub forum here on lighting

There is a whole sub forum here on lighting
also you will need the coding sub forum.

http://www.e90post.com/forums/forumdisplay.php?f=57
http://www.e90post.com/forums/forumdisplay.php?f=16

this subforum is mostly for stereo and bluetooth

electical e90 pdf
http://www.google.com/url?sa=t&rct=j...,d.cGU&cad=rja
http://www.google.com/url?sa=t&rct=j...85464276,d.cGU
http://www.google.com/url?sa=t&rct=j...85464276,d.cGU
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      09-26-2016, 09:18 PM   #3
mashimarho
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Not really looking for redirections. Sorry. Can someone just explain what I have going on in mine by looking at it? Thanks n
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      09-27-2016, 11:49 AM   #4
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Do you still have the little paper with the fuse board map printed on it? By default it's clipped at the back of the plastic panel that you had to remove to access the fuses. It's the one with a plastic screw on either side. Without that it'd just be a gamble because there are so many variations of these fuse panels. Also, it's impossible to see what's hiding behind that big black cable holder snaking through the bottom half.

The red wire with the blue plastic isolator at the end (top left) looks like it's going into the topmost/leftmost block on the panel, which is often for the rear windscreen wipers. But maybe it isn't and it taps into a power wire hidden from view. To the right of that, you have some weird stuff. The green fuse with a rounded rubber bit on top of it, never seen that before. Then a 25a brown fuse. Then a little black plastic filler? Again, I can't identify that. Then what looks like an add-a-fuse circuit with a power out red wire that maybe feeds into an inline fuse? (The black cylinder just below it). There's also a black wire coming into the panel from the bottom left, but no way to see where that goes.

We'd really need the fuse box diagram and a picture where the wires don't hide the connections. And where we can see what the wires feed into clearly.
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