Sunroof fuse keeps blowing

[somm50]

Everytime I put a fuse in the sunroof location in the fuse box it blows. It sounds like I have a grounding problem, but I'm not exactly sure where to start. Has anyone encountered this problem? Please help!!

 

[luv2rallye]

Put a small 12V light in place of the fuse as described here: http://www.dsmtuners.com/forums/showthread.php?p=1496998#post1496998

 

[somm50]

Thanks for your help! That's a good way to find a short. One of my sunroof wires was pinched and grounding out. Ah! the joys of a sunroof.

 

[KOG_GSX]

I recently had an aftermarket alarm installed. Dude who hooked it up is nowhere to be found... I'm having the same problem everytime hit the switch to open or close the sunroof, the fuse blows within 3-5 seconds. I have no idea where/how the alarm is hooked up to it (I have the feature that opens and shuts the sunroof with the alarm remote), could the cause of this be because the alarms fuse is too many amps? If I luck out and find it, should it be running a seperate fuse? If so, should it be running a 20 amp fuse just like the stock sunroof amp? I hope that makes sense.

 

[97GSTee]

interesting...what size fuse is in there now? I definately wouldn't go any bigger...see if he wried anything directly to the sunroof fuse. I used to work at best buy installing stereos and alarms and every now and then i'd come across someone that had ran a remote wire to an accessory fuse, technically it'll work prefectly but it'll blow that fuse allllll the time. Someone ran an accessory wire from their radar detector to the windshield wiper fuse...now dont get me wrong, it will work, but when he'd turn on his windshield wipers the fuse would always blow...keep us updated

 

[KOG_GSX]

There's a 20 amp fuse in the box, and according to the cover, that's right. I don't see anythoing running from the fuse from behind... I think it's a module that the alarm uses, and I'm assuming it has to splice into the sunroof, otherwise, how would the module know what to control. I see nothing near the sunroof motor/ecu, I see nothing behind the interior fuse box connecting to the sunroof fuse.... electrical sux!!!

 

[KOG_GSX]

Ok, I found the source of my troubles. Observe pic 1:

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Two wires running into my sunroof ecu... from a box like this (below):

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Both wires run into the left box. Now, I don't know what or how an interjected fuse works exactly (the fuse that is spliced in between a wire and hangs inside a black box), besides keeping things in order, so here's my questions... would running one of those help my situation? If so, what amp fuse do I run (stock fuse is 20 amps)? It goes on the positive wire right? Do I run it closer to the box, closer to the ecu, or anywhere on the correct wire? Do I run it in between the stock wires and the aftermarket wiring, or keep the stock wiring and aftermarket wiring connected and just splice into the aftermarket wiring?