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Posted By: 51bowtie Horn Relay - Fri Oct 09 2020 02:22 PM
Going to install a horn relay in my 51. Its marked with the following numbers: 30, 85, 86, 87. Whats the proper makeup for this relay?
Posted By: 51bowtie Re: Horn Relay - Fri Oct 09 2020 02:27 PM
By the way, they are aftermarket modern horns.
Posted By: tclederman Re: Horn Relay - Fri Oct 09 2020 02:35 PM
What brand & model-number horn?

What brand & model-number relay?

And/or post/attach photos of both.
Posted By: 51bowtie Re: Horn Relay - Fri Oct 09 2020 02:57 PM
Both are Hella Products. The relay is model 960 388-46. 12v

Attached picture 51Horns.png
Posted By: Rusty Rod Re: Horn Relay - Fri Oct 09 2020 03:04 PM
Here is a typical installation absconded from the googler.

Attached picture horn relay schematic.gif
Posted By: 51bowtie Re: Horn Relay - Fri Oct 09 2020 03:13 PM
Looks like what I need but....the relationship between the 85 terminal and the 30 terminal. Is it saying I need to jumper the two terminals?
Posted By: klhansen Re: Horn Relay - Fri Oct 09 2020 04:18 PM
Originally Posted by 51bowtie
Looks like what I need but....the relationship between the 85 terminal and the 30 terminal. Is it saying I need to jumper the two terminals?
Yes, although you could power each one separately from different circuits.
Posted By: Donsz Re: Horn Relay - Fri Oct 09 2020 08:54 PM
The relay is a Bosch relay. The attached is similar to Rusty Rod's diagram, but shows the internals of the relay.
don

Attached picture horn.JPG
Posted By: 51bowtie Re: Horn Relay - Fri Oct 09 2020 10:10 PM
Hooked everything up per all the info I got and the horn continually sounds. Figured if was something in the steering column. Took it apart and stripped it. The horn still sounds! WTH?
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