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need urgent help.....earthing steering wheel
Posted: Mon Jan 01, 2007 2:47 pm
by jigga
just bought a new wheel and the power runs continously, making the horm beep none stop!
whats the best way to earth a new wheel?
Posted: Mon Jan 01, 2007 2:58 pm
by Bluey
you mean the splined section or ....
if it is spline, then should be able to whack am earth somewhere on brackets in steering columm area
Posted: Mon Jan 01, 2007 4:25 pm
by jigga
sorry mate,
im new to electrical side of things.
i dont follow what you mean. the new boss kit comes with one wire which i assume you plug into the new steering wheel wire which will opperate the horn.
the instrucitons suggest using a seperate wire which connects somewhere on the steering wheel then wedges back in between the steering wheel and the boss kit..
I hope that makes sense.
Posted: Mon Jan 01, 2007 5:54 pm
by fool_injected
If the horn runs continuiously you have an earth
Check that the "switch" in the wheeel itself is not jammed on
Posted: Mon Jan 01, 2007 8:44 pm
by Bluey
ok, had a look at a "spare" 80 series steering wheel. this is in toyota speak, ie negative earth to switch things, but would think this would be how all horn switches work.
anyway, the steering shaft is grounded, and the steering wheel is bolted to this (spine cut like an axle so it turns the steering shaft). so this earth is directed up to horn switch and then back to a copper ring on bottom side of the steering wheel which is insulated from the earth on the shaft.
12v would be constantly supplied to horn/horn relay, when you push the horn switch ie the steering wheel, it completes the earth circuit to the horn and it makes a noise
so yours probably is the switch playing up. should be able to measure ohms between the copper ring and the spline piece where it bolts on. zero ohms normally, and low ohms (ie less than 10 or so) when you push in the button
hope this helps
Bluey
Posted: Tue Jan 02, 2007 8:14 am
by evil_hitman
Bluey wrote:zero ohms normally, and low ohms (ie less than 10 or so) when you push in the button
Infinite ohms i.e. very high (off the scale) normally and should be 0 or close to it when the button is pressed (under 10 as bluey said).
If the horn is sounding it means it has earth, constantly, so either the switch is faulty, when you connected the new wire to the existing wire you have inadvertantly shorted it to earth, or the switch has jammed on during installation (which does happen occasionally)
Matt
Posted: Tue Jan 02, 2007 11:57 am
by Bluey
evil_hitman wrote:Bluey wrote:zero ohms normally, and low ohms (ie less than 10 or so) when you push in the button
Infinite ohms i.e. very high (off the scale) normally and should be 0 or close to it when the button is pressed (under 10 as bluey said).
If the horn is sounding it means it has earth, constantly, so either the switch is faulty, when you connected the new wire to the existing wire you have inadvertantly shorted it to earth, or the switch has jammed on during installation (which does happen occasionally)
Matt
umm, what he said. must have been tired or something