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| c4-zo7-91 | horn wire question | ||
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Senior Guru
 
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hi guys
i have fitted my after market isotta sports wheel now with #2401 boss kit. so how do i make the make the horn work now?? the old 91 wheel had two horn wires black,but in the colum there is one wire with a spring in there. now my new wheel has two wires coming from horn button!! so how do i go about connecting them up please ?? do i need a postive and negative?? any ideas guys?? cheers glen |
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Posted on: 2008/9/13 22:51
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| c4-zo7-91 | Re: horn wire question | ||
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Senior Guru
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can any one help please ??
thanks. |
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Posted on: 2008/9/14 9:25
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| BillH | Re: horn wire question | ||
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The Stig Moderator
 
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Glen, do you have a FSM? There's a wiring diagram in there.
Anyway, one of the 2 origional wires is a ground. The other goes to the horn relay. When you hit the stock horn button, you complete the circuit that grounds (and activates) the horn relay. You're not dealing with positive and negative just completing a ground circuit, so it doesn't matter which wire is which on the new wheel. If there is only one wire in the column, it should go to the horn relay. An easy check would be to take a jumper wire attach it to that wire and touch it to a ground somewhere, the horn should blow. Hook that wire to one of the 2 on the new wheel. See if there's a ground anywhere in the column and hook the other wire to it. |
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Posted on: 2008/9/14 15:46
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Every man dies but not every man lives. |
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| c4-zo7-91 | Re: horn wire question | ||
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Senior Guru
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hi bill,
how are ya mate!! thanks for your help. so do i need to attach one of the two wires to metal and the other to the single wire which goes to the relay then please ?? thanks glen |
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Posted on: 2008/9/14 20:08
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| BillH | Re: horn wire question | ||
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The Stig Moderator
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Si Senior, Did you retain the stock steering column and are just changing steering wheels? If so there should be 2 black wires going down the column. Connect one of them to each wire on the new wheel.
If you have only one wire going down the column, it should go to the relay. The other wire on the wheel sgould be grounded some where, probably can ground it to a screw in the upper column. The black wire to rhe relay should to a black wire coming out of the relay, at least for my 92. The orange wires out of the relay are for power from the fuse box. And green to the horn. To be 100% you need to check a 91 FSM. |
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Posted on: 2008/9/15 0:06
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Every man dies but not every man lives. |
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| c4-zo7-91 | Re: horn wire question | ||
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Senior Guru
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hi bill,
yep got it all done and it works,hooray!! thanks mate for your help and tips!! thank god all went smoothly,got the rite boss kit finally,fitted 3.3 ohm for air bag lite and got horn working properly!! very happy now. cheers glen |
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Posted on: 2008/9/15 6:38
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