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      12-28-2012, 09:20 PM   #5
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Drives: BMW
Join Date: Jun 2007
Location: Anaheim, CA

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2013 BMW M3  [5.00]
2015 BMW M4  [0.00]
2013 BMW F30  [0.00]
2014 BMW F22  [0.00]
2013 BMW F06  [0.00]
Originally Posted by beermeister kink View Post
Always a puzzler when the gremlins pop up their little troublesome heads!

So we need to troubleshoot the problem a bit I think. Plug the v1 into the lighter to eliminate the unit itself from the list of potential problems.

If the v1 comes on, and you said the sunroof works, then the problem is with the wiring.

I forget, is there a separate fuse you can check when you install the v1 like this?

If there is, then check it. If it's fine or if there isn't a fuse to check (we know the sunroof works) then the problem is in the wires themselves. In which case you can rewire it.
Good stuff. Once upon a time, I tore apart my computer trying to figure out why it didn't turn on... after 3 hours, I finally realized that the power supply wasn't plugged into the wall

Moral of the story, start from the beginning before trying to tear apart your car.
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