From my experience, this will clear the light. However, if the offending source is not eliminated, it will come back on. 
 
This happened to me in a 99 911 I had once. 
 
Seat belt buckle issue. 
 
Don't get me started ...........
		 
		
		
		
		
		
		
			
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				Rich Belloff
   
			 
		
		
		
		
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