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      03-02-2017, 02:56 PM   #4
f82_spooly
First Lieutenant
United_States
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Drives: F82 M4, E92 M3, E46 M3
Join Date: Dec 2016
Location: Connecticut

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Can this be the case even if the headunit is working perfectly? I get audio/
video I mean the navigation works and all so..?

I was thinking a wire might be shorted or something

About trying it with another headunit I have a 2010 so it's CIC my friend has a 08 non idrive can I try it with his? Or would I specifically need one that's 09+


Quote:
Originally Posted by ctuna View Post
Can Bus chips could be blown out on the Head Unit Locking
the Bus when its plugged in . Or something in the Head Unit
is causing it to Lock the Bus. About the only thing you can do
to isolate the problem is try another Head Unit or Verify the head
unit in another vehicle. Or send the Head unit to someone that
repairs them for verification.

Then there are are more basic checks like
does your coding setup work on another car and is
the battery voltage OK with the head unit plugged in .
No bent pins on the head unit or head unit connectors.
Appreciate 0