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Horn not working
#1

Started to diagnose my non working horn today. Just bought the car and it came this way.



Began with the fuses and fuse number 3 (which I believe is for the horn) was missing. Put in a new fuse but still no horn. Continued with removing the wire in the steering wheel and measured resistance to ground, which was none. The wire is connected to ground.



My question: should it not be the other way. The wire should be hot and when connected to ground the horn is activated?



Question number 2, where is the horn located? I've seen a horn next to the battery at the fire wall, is this the horn or is it just a part of the alarm system?
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#2

No replies yet, I´m sure there is expertise here to help me, if someone could tell were the horn is located that would help a lot in my search for the problem.



Have I posted this in the wrong section?
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#3

Horn's are behind the front bumper , if my memory serves me correct at the left side .



But i think you need to remove the front belly pan to get acces to them .
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#4

correct on location, but actually, you have to remove the bumper cover to get to them because the big air plenum for the radiator is in the way.
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94 Midnight Metallic Blue Cab Porsche 968 w/deviating cashmere/black interior and WAY too many mods to list - thanks to eric for creating www.968forums.com



"It isn't nearly as expensive to do it right as it is to do it wrong."
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#5

[quote name='flash' timestamp='1397050122' post='156692']correct on location, but actually, you have to remove the bumper cover to get to them because the big air plenum for the radiator is in the way.



[/quote]



That is even a lot worse .

Very time consuming then .



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#6

lol - not necessarily. i have been clocked at removing the bumper cover in less than 10 minutes, including time to jack up the car and go get the tools.
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94 Midnight Metallic Blue Cab Porsche 968 w/deviating cashmere/black interior and WAY too many mods to list - thanks to eric for creating www.968forums.com



"It isn't nearly as expensive to do it right as it is to do it wrong."
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#7

[quote name='flash' timestamp='1397054050' post='156697']

i have been clocked at removing the bumper cover in less than 10 minutes, including time to jack up the car and go get the tools.

[/quote]



That because Flash plays with his 968 like some kids play with Lego! Build it one day... rip it apart the next... build it again... <img src="/forum/images/smilies/968/icon_lol1.gif" class="smilie" alt="" />
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#8

lol - it's really an easy job.



apron - 11 phillips head screws, 2 8mm hex nuts, 3 10mm hex head screws.

fender liner retainer - 2 10mm hex head screws

bumper cover retainer brackets - 3 8mm head screws each side

bumper cover top retainer - 4 philips screws

4 lighting connectors



that's it - if you use a battery powered screwdriver, it goes very quickly.
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94 Midnight Metallic Blue Cab Porsche 968 w/deviating cashmere/black interior and WAY too many mods to list - thanks to eric for creating www.968forums.com



"It isn't nearly as expensive to do it right as it is to do it wrong."
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#9

Tanx a lot for all the input, now I know were to start. Will save this pleasure for the weekend though.
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#10

tech tip:



put a blanket down to catch the bumper cover, as it is rather unwieldy.



also, take care regarding the rubber gaskets that go between the bumper cover and the fenders.



when reassembling, the long flat piece goes inside a groove on the bumper cover.
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94 Midnight Metallic Blue Cab Porsche 968 w/deviating cashmere/black interior and WAY too many mods to list - thanks to eric for creating www.968forums.com



"It isn't nearly as expensive to do it right as it is to do it wrong."
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#11

Tanx a lot for this great input Flash.
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#12

Started the diagnosing two weeks ago, pulled the fuse, cable to horn button and the relay. Measured resistance and voltage, couldn´t make any sense from the values. Ran out of time so I thougth I´ll just put it all together (When I bougth the car the fuse was missing so probably something was wrong) and if its start honking I will have to remove the fuse quickly. To my great luck it has been working since then,
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#13

Is there room for an air horn in the present location? I have been looking at a triple horn made by a company called WOLO-mfg.com. It plays either the European ambulance sound or what they call a turkey trot.
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#14

Sorry, can´t help you there.

My work was carried out in the fuse/relay box and on the steering wheel.

Was no need to open up the front to get to the horn.
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