Make up a test rig, wire in a bulb holder and see if it lights up when you press the horn ring, if it's okay , buy a new horn from parts shop. Think its a live feed.
The horn is permanent live. The horn switch is earthed to the stearing columb when you press it. A fairly common fail for this is the bridge wire in the engin bay near the stearing box. There is a reinforced rubber flexi-link in the stering linkage just behind the staering box. The bridge wire around this rubber section gets corroded. Sometimes this couses the stearing columb to lose it's earth.
Test the conections at the horn itself first as Ews has said. If everything is OK there my next suspect would be the bridging wire. After that the switch itself, followed by the wiring.
Try taking a feed straight to the horn from the battery, and an earth straight back. That will see if the horn itself is any good. Basicly it's trial and error with a test light or multi meter to find out where you should be getting power or an earth but arn't.
Any veiws expresed in this thread by me are purely from my own experience, and (sometimes) falible memory. Hope my comments help, but please don't take them as gospel.
Squark, Squark
Hi.
Make up a test rig, wire in a bulb holder and see if it lights up when you press the horn ring, if it's okay , buy a new horn from parts shop. Think its a live feed.
Edward (ews) '92 Fourtrak 2.8 TDX
The horn is permanent live.
The horn is permanent live. The horn switch is earthed to the stearing columb when you press it. A fairly common fail for this is the bridge wire in the engin bay near the stearing box. There is a reinforced rubber flexi-link in the stering linkage just behind the staering box. The bridge wire around this rubber section gets corroded. Sometimes this couses the stearing columb to lose it's earth.
Test the conections at the horn itself first as Ews has said. If everything is OK there my next suspect would be the bridging wire. After that the switch itself, followed by the wiring.
Try taking a feed straight to the horn from the battery, and an earth straight back. That will see if the horn itself is any good. Basicly it's trial and error with a test light or multi meter to find out where you should be getting power or an earth but arn't.
Any veiws expresed in this thread by me are purely from my own experience, and (sometimes) falible memory. Hope my comments help, but please don't take them as gospel.