1986 horn wiring help
Thread Starter
Intermediate
Joined: Jan 2015
Posts: 40
Likes: 1
From: Alberta
1986 horn wiring help
Hello, thanks in advance for helping
My 1986 vert has a horn issue.... fuse 15 amp is ok behind message center relay operates with horn button , verified with testlight , ohms read in millions from green wire at relay to left or right horn power wire ,if i send power down the green wire from relay still no horn op ,checked horn at itself it operates, so now i suspect the green wire as being broken somewhere. but i do not know where this wire goes from the relay to horn ie connector locations and harness locations and am i missing something in my checks ....thank you for helping
also looking for g5 c100 location
cheers!
My 1986 vert has a horn issue.... fuse 15 amp is ok behind message center relay operates with horn button , verified with testlight , ohms read in millions from green wire at relay to left or right horn power wire ,if i send power down the green wire from relay still no horn op ,checked horn at itself it operates, so now i suspect the green wire as being broken somewhere. but i do not know where this wire goes from the relay to horn ie connector locations and harness locations and am i missing something in my checks ....thank you for helping
also looking for g5 c100 location
cheers!
Last edited by StarleX86Vert; May 10, 2015 at 11:51 AM.
Drifting
Joined: Jun 2013
Posts: 1,590
Likes: 60
From: ft myers FL/Munising MI
horns go off when grounded by the green wire.....don't think you should be sending power down it....ground it and it should blow....chances are your horns are crap...common problem...get a A and a C tone horn at any
auto store.....there is a horn relay....you may have blown it with the extra power....time for a gm factory manual if you don't have one...
auto store.....there is a horn relay....you may have blown it with the extra power....time for a gm factory manual if you don't have one...
Melting Slicks
Joined: Aug 1999
Posts: 2,240
Likes: 42
From: Baltimore, MD USA
The Dark Green wire from the horn relay goes to connector C100 pin G5 which is the firewall bulkhead connector.
In the engine compartment C100 has two connector plugs that plug into it.
One is the engine harness and the other is the lighting harness. My guess is the Dark
Green wire is in the lighting harness pin G5.
In the engine compartment C100 has two connector plugs that plug into it.
One is the engine harness and the other is the lighting harness. My guess is the Dark
Green wire is in the lighting harness pin G5.
Last edited by Hooked on Vettes; May 10, 2015 at 04:29 PM.
Thread Starter
Intermediate
Joined: Jan 2015
Posts: 40
Likes: 1
From: Alberta
The Dark Green wire from the horn relay goes to connector C100 pin G5 which is the firewall bulkhead connector.
In the engine compartment C100 has two connector plugs that plug into it.
One is the engine harness and the other is the lighting harness. My guess is the Dark
Green wire is in the lighting harness pin G5.
In the engine compartment C100 has two connector plugs that plug into it.
One is the engine harness and the other is the lighting harness. My guess is the Dark
Green wire is in the lighting harness pin G5.
Have a great day!!
