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			Hi! I have a 2000 Boxster S. After I saw forum about the electric key switch not starting, light flickering, etc, so I sure to replace that switch. After I replace the old switch, I discover that the new number4A0905849is already inplace. I bought the car in 2003 I'm the second owner, so it was installed earlier like 01 or 02. Still confused! 
		
	
		
	
			
				So, should I replace for a new 4A0905849 switch again!. Or, do you might have another idea. I'm just a rookie, so please help!! __________________ This post was auto-generated based upon a question asked on our tech article page here:  | 
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			 Moderator 
			
			
		
			
				
			
			
			Join Date: Jul 2012 
				Location: New England 
				
				
					Posts: 3,189
				 
                
				
				
				
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			Since you have it apart, I would monitor the voltage out of the switch when the problem is present. If the voltage in holds steady and out fluctuates, the switch is faulty.  
		
	
		
	
			
			
				
					- Nick  | 
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