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Old 06-04-2012, 02:40 PM   #7
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Join Date: Aug 2008
Location: Torrance, CA
Posts: 2,652
My Ride: '99 323i & '02 540i
Originally Posted by YGOSLO View Post
How do I determine if the clock spring is functional? Or is it safe to assume that if I still have my steering wheel functions that it is good?
If the other steering wheel buttons are good then the horn is probably good, but, not a 100% sure thing. Taking the assembly apart to check is not easy and you risk damaging the flex cable. Try putting your hand on the horn relay while tapping the horn button. Make sure the relay clicks or just swap it with the A/C relay. Use the web page I posted earlier to determine which relay is the horn and A/C.
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