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Horn button wiring by Fierotoyboy
Started on: 04-29-2015 12:25 PM
Replies: 2 (159 views)
Last post by: theogre on 04-29-2015 05:11 PM
Fierotoyboy
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Report this Post04-29-2015 12:25 PM Click Here to See the Profile for FierotoyboyClick Here to Email FierotoyboySend a Private Message to FierotoyboyEdit/Delete MessageReply w/QuoteDirect Link to This Post
I have an 85 SE with a lot of questionable wiring. The horns don't work, and I doubt the horn relay is good, even if it's there.

I'm just going to do the easy method - new horns, new relays -simple stuff.

My question is: how to identify the horn button wire in the harness coming out of the steering column? I know that the horn switch is on the negative side of the circuit (one wire to horn button which closes the circuit to ground); I just am not sure what color to look for. The steering wheel is aftermarket (Grant) and has a black wire.

Any help on tracing this wire would be much appreciated!
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bonaduce
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Report this Post04-29-2015 01:20 PM Click Here to See the Profile for bonaduceClick Here to Email bonaduceSend a Private Message to bonaduceEdit/Delete MessageReply w/QuoteDirect Link to This Post
Looking at the 87 service manual, looks like orange, or dark green

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theogre
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Report this Post04-29-2015 05:11 PM Click Here to See the Profile for theogreClick Here to visit theogre's HomePageSend a Private Message to theogreEdit/Delete MessageReply w/QuoteDirect Link to This Post
Just Use a light or meter and connect at relay and 12v...

Black wire is over N on HORN label next to the "latch"

Good Horn button then light go on or Meter sees car volts, 12-15v.

12v terminal is there too but easy to short that for many DIY. You hit the button when shorted and you fly the fuse and/or fry the switch.
12v orange wire over OR in HORN.

Jump H to OR terminals to blow the horn.

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