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					Originally Posted by  OldMacTech
					 
				 
				Major voltage drop. 
 
Every thing off, doors closed, no key, frunk light disconnected, interior lights disconnected, radio off. 
 
Every 45 sec the voltage drops nearly 1/2v but after 15 secs returns to full voltage but a few volts less than before.  Went from 12+v to under 9v in about 2 hours.   
 
Almost has to be alarm?  I’ve never had the alarm go off in the 5-6 yrs I’ve owned) 
 
Also, one time I had rodent issues in the engine compartment but once fixed, no problem. 
			
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The alarm is fused (should be E1 or B8), so you should have seen that doing your fuse pull diagnostics.
  
		 
		
		
		
		
		
		
			
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