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Old 05-09-2009, 09:43 PM   #1
02blkwagn19
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Member#: 146496
Join Date: Apr 2007
Chapter/Region: SWIC
Location: Tempe, AZ
Vehicle:
02 WRX Wagon 2.1L
Built not bought. #0003

Default Blowing Horn/Hazard fuse???

Hey guys i have a 02 wrx, and within the last week i just kinda realized my horn stopped working, so i changed out the fuse and it blew as soon as i hit the horn, but the hazards worked until i hit the horn. Tried throwing a 30 in there and blew that too.

I have done searches on this and seems to have been only one or two threads on this but they are of no help. I have a set of defi's in the clock pod and threw a sti cluster in the car, but i pulled both of them to check for grounded wires and couldnt find anything. the defi's were installed like almost 2 years ago and the st cluster about 1 year ago.

so i cant for the life of me figure this out, so if any of you guys have any knowledge of this please give me some ideas! until then i will be searching for grounded wires else where.

thanks guys
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Old 05-10-2009, 12:54 AM   #2
b00st3d
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Location: New Orleans, LA
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2014 IS350 F Sport
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had a similar problem with my 05 sti. it turns out one of the horn wires behind the front bumper rubbed against the bumper beam through the shielding and was grounding out everytime i hit the horn.
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Old 05-10-2009, 11:07 AM   #3
Cougar4
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Winestone

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I agree with B00st3d, look for the trouble in the wiring near the horns. Since the fuse blew when trying to use the horn the trouble is after the horn relay, supplying power to the horns.

Never use a larger fuse to replace a smaller one. You may end up with more trouble than you bargained for.
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Old 05-10-2009, 04:08 PM   #4
02blkwagn19
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Member#: 146496
Join Date: Apr 2007
Chapter/Region: SWIC
Location: Tempe, AZ
Vehicle:
02 WRX Wagon 2.1L
Built not bought. #0003

Default

right on i will check that out, thanks for the input guys
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Old 05-25-2009, 05:09 AM   #5
02blkwagn19
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Location: Tempe, AZ
Vehicle:
02 WRX Wagon 2.1L
Built not bought. #0003

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just an update, found the issue. A wire going to one of the horns was pinched between my fmic and part of the frame. So weaseled the wire out and "wal-la" no more blowing fuses.

hope this helps anyone who might run into the same problem.
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Old 05-25-2009, 10:53 AM   #6
Cougar4
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Winestone

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Glad to hear you found the trouble and thanks for the update. If you haven't sealed the damaged insulation with some electrical tape or something similar you should do that. Over time, moisture will leech into the wire and damage it.
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Old 08-19-2009, 02:49 PM   #7
mrmoe13
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i have an 07 sti and had same problem . Thanks for info guys easy fix when you no where to look..
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Old 11-15-2009, 07:47 PM   #8
sti_is_my_new_love
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DGM

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same issure with my 06 sti. thanx big help
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Old 10-10-2012, 08:38 AM   #9
geo301
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2005 Wrx Stage 3
WRB

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Helped me out too!
thanks guys
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