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  • 1996 - 2004 SN95 Mustang -General/Talk-
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04 battery drain

  • Thread starter Thread starter Cws
  • Start date Start date Feb 11, 2019
C

Cws

New Member
Jan 21, 2019
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0
1
Arizona
Feb 11, 2019
#1
  • Feb 11, 2019
  • #1
I've been dealing with a drain for awhile now. At one point it was 0.32 amps. Was told it was the gem. Had a replacement sent and flashed. No change. Some one before me who owned the car had a tracking system. They took it out but left part connected to the instrument panel. I removed it which brought the reading down to 0.12. What is a acceptable reading? Thanks
 

wmburns

SN Certified Technician
Aug 14, 2009
5,892
514
204
Houston Texas
Feb 21, 2019
#2
  • Feb 21, 2019
  • #2
Cws said:
I removed it which brought the reading down to 0.12. What is a acceptable reading? Thanks
Click to expand...
That depends upon when and how you took the reading. In a normal working car you can expect that the amp draw will drop as the various sub-systems time out and power off. So things like opening a door or turning the key, touching the FOB will reset the inactivity timer thus waking up the sub-systems involved.

So If this were my car I would be looking for inputs that could "wake" up the GEM. For example:
  • Door ajar switch
  • remote FOB
  • Radio
  • interior lights
It would also be handy to confirm IF there's any key off power into fuse F2,34, F2,2, and F2.8

1999-2004 MY fuse panel schedule:
https://www.allfordmustangs.com/for...r-swap-wont-fire-please-help.html#post2669271
 
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