05-10-2015, 04:41 PM
(14-09-2012, 06:34 PM)geoff Wrote: I've just had the steering wheel off today for the usual trouble of no horn when driving and horn working when the key is removed. I cleaned up the earth connection and now have a working horn when driving.
If you look at the photo you will see a red wire which is the feed to the horn switch ( air bag unit ) and the black cable is the earth return back through the right hand ribbon cable. ( the bottom of the airbag has four brass contact points which make with corresponding contact points on the steering wheel, the black wire then completes the circuit with the ribbon ).
The black cable has a connector which pushes into a hole in the body of the steering wheel and it is at this point that a bad earth connection can be found. This original connection is a poor affair with little contact pressure and a small contact area, I cleaned up the wheel and connector at this point and reassembled to test and found it now worked. Following this I drilled a small hole in the wheel and connected the black wire to it with a self tapping screw for a more secure and permanent fix.
Hopefully the above will be of some interest to you.
how do you get the cover off Geoff..