|
Re: Horn wiring bypass
I'm just a little confused about the relay vibrating? If its vibrating and clicking around internally it sounds like its working/actuating... I'm not sure if that's what you're talking about. I am going to assume we know the horn and relay ARE operational since they have been slaved into a donor truck and work normally.
I would start with a volt meter, do I get 11/12 volts at the black wire coming from the steering column main connection that connects to the steering wheel hub assembly. If no power there you need to look further back in the wire and look for an open circuit.
If you don't have a volt meter handy ground the circuit at the steering column or another known good ground does the horn go off then or does the relay actuate/vibrate? If it works your horn circuit is good to go. Your problem is at the hub assembly at the steering wheel. Remember your horn relay is ground seeking and all the horn button gives is a ground when pressed.
If the horn fails to operate when manually grounded at the steering wheel look at the connection where the column connects to the body/dash harness. It should be an 18 gauge black with no stripe, manually ground that circuit/check for power back the wire until you hit the relay checking for breaks in the wire. The schematics are posted in this area of the forum and fairly easy to use. If I am wrong I am certain the electrical gods shall advise me as such.
Good luck.
Paul
|