Birty Dastards Jeep Club
		Tech Forum => Workshop => Topic started by: delboy259 on December 11, 2015, 03:24:55 PM
		
			
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				Hi All.
 Just a quick question to the learned folk on here.
 The battery on my GC goes flat after about 3 days.
 I have done the amp test and found that it has a 1.8amp draw on it.
 I have pulled the fuses and found that if I pull the Cluster fuse the drain drops to 0.8 amps.
 After some research I found that this is related to the BCM.
 Is this correct? and if it is the problem. Would an 0.8amp draw be acceptable.
 Any info greatly appreciated.
 
 Derek
 
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				ZJ's are a pig for flattering battery's
 never checked just disconnect the   when not in use
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				They draw at least half an amp when idle
 When testing for a draw, pull the IOD fuse, lock it up and give it several minutes for the computers to shut down before getting a final reading.
 Official batery life is about 3-4eeks when parked as long as the battery is in top condition. The handbook stated you should remove the IOD fuse when parking for long periods.
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				I had a similar fault, battery flat after a few days of no use. The drain ended up being a sticky brake light switch so was only staying on occasionsly, draw should be less than 0.1A under normal locked mode. 
 
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				 draw should be less than 0.1A under normal locked mode.  
 Not on a ZG, they were always very high, hence the need to pull the IOD fuse.
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  draw should be less than 0.1A under normal locked mode.  
 Not on a ZG, they were always very high, hence the need to pull the IOD fuse.
 
 
 Maybe this depends on the model as my 98 loredo td was 0.15A for a few seconds after locking then dropped to 0.6A. I now have a 4.0 orvis, I'll measure that later and report back  
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				Sorry meant 0.06A.
 
 
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				According to the ZG/J FSM IOD should be no more than 30mA after 3 mins. It seems surprising that battery drain should be such a problem on them.
			
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				alarm siren batteries, its underneath the servo