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Rear Windows blowing fuses on DII

Old Jun 21, 2012 | 11:12 PM
  #1  
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Rock Crawling
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Default Rear Windows blowing fuses on DII

my 30 amp fuse on the rear windows blows as soon as the ignition is turned on. this happens whether the center console switch to over ride the rear windows is on or off.
i'm about to go digging in the RAVE to trace out the power flow so i can start pinning it down. thought i'd post this to see if anybody had experience to point me in the right direction.
thanks
jon
 
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Old Jun 21, 2012 | 11:36 PM
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Rock Crawling
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it's not the relay. if i pull the relay out, fuses don't blow. put a new relay in, it blows.
 
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Old Jun 22, 2012 | 12:31 AM
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Rock Crawling
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ok, by disconnecting the center console driver side rear window switch the fuse stops blowing. guess i'll be tracking down some wires in the door.
 
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Old Jun 22, 2012 | 06:41 PM
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Rock Crawling
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alright, i've got it down to the gray and white wire that runs from the center console switch to the rear switch. it is grounded.
i've checked to most obvious place, the door hinge and all looks fine.
where does the wiring harness go from the door? up into the overhead or down along the ground to the center console?
any help is appreciated so i can get this thing working again.
jon
 
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Old Jun 22, 2012 | 06:54 PM
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start by disconnecting the motors one at a time. which ever motor is the problem use that to trace. then run a jumper wire from one wire to the next to eliminate the wire if that is the problem. if neither motor causes the fuse to blow then its a motor problem.
 
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Old Jun 22, 2012 | 07:43 PM
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Rock Crawling
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i've already tracked it down to which wire is shorted to ground. motor is not the issue. i just need to know where the wiring harness goes when it leaves the door so i'm not tearing apart parts of my interior that don't need to be to access the wire.
 
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Old Jun 22, 2012 | 08:01 PM
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Rock Crawling
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here is a pic of the wiring diagram. the wire that is shorted to ground is boxed in red.

Name:  DiscoveryIIElectricalWindowsDiagrams.jpg
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Old Jun 22, 2012 | 08:15 PM
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here's a pix of those connectors in the center of that grounded run. Those tiny "lawyer sized" fine print numbers are the connector numbers in the electrical library.
 
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Old Jun 22, 2012 | 08:22 PM
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Rock Crawling
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awesome. that'll get me started. i was hoping there was a half way point to rule out toward the door or toward the center console.
thanks
jon
 
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Old Jun 22, 2012 | 09:25 PM
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Rock Crawling
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well the problem is not in the door. it's between that point and the center console switch. i don't feel like tearing apart any more of my interior right now so it'll just have to wait. i've got one rear window working again, that'll do for now.
thanks
jon
 
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