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-   -   R129 Horn Wiring (http://www.peachparts.com/shopforum/mercedes-benz-sl-discussion-forum/198089-r129-horn-wiring.html)

Mike Miller 08-25-2007 06:46 PM

R129 Horn Wiring
 
2 Attachment(s)
I am going to hang my stupidity out here, but I really need some advice.

My horn has not worked for some time. Today I pulled the airbag off the steering wheel expecting to see a couple wires. Maybe a disconnected wire. Instead, I found a relay:eek:. I have looked everywhere and can not see one in any technical information I have. I have called a couple indy's and they think I am smoking something funny.

Here is a picture of what I see and a diagram showing the relay circuit and the wires (by color) that are connected to it. What am I looking at and why is it there.:confused:

Have any of you looked under the airbag? What SHOULD be there? A little help from my technical buddies and maybe a monitor or two would be appreciated.:rolleyes:

tecqboy 08-26-2007 01:50 AM

That is diffinitely not OEM wiring. When the horn fails, it's often the horn that fails. That is, they get rusty inside and just stop working. Of course there are fuses and other parts which go bad too, but try putting 12V to the horn directly and hear what happens.

Mike Miller 08-26-2007 11:44 AM

Quote:

Originally Posted by tecqboy (Post 1602387)
That is diffinitely not OEM wiring. When the horn fails, it's often the horn that fails. That is, they get rusty inside and just stop working. Of course there are fuses and other parts which go bad too, but try putting 12V to the horn directly and hear what happens.

Do you have a picture and diagram of OEM wiring? I would like to get rid of this set up, but I am afraid to experiment with R129 wiring. :( This forum is full of wiring nightmares on this car.

Mike Miller 08-27-2007 05:14 PM

Problem solved. I ripped out all the extra jazz and just hooked the two wires to the inner and outer horm contacts. I don't need no stinking relay!:bandana:

I got horns-a-plenty.:cool:


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