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Strange Horn 200 1991

posted by  rf64 on  Sun Apr 9 16:33 CST 2006
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last visit: Tue Mar 10 14:44 CST 2009
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Hello , I installed two new horns recently in my 1991 volvo 240 . I installed one high sound and one low sound . They are exact bosch replacement horns that were originally on the car. I replaced them because they were rusting and worked intermittently. The new ones are giving me the same problem , sometimes they work and sometimes they dont .When they dont work I hit the steering wheel hard then they work. Is there a loose connection there.I know the horn contacts are below the airbag,so I dont know of anyway to get to them. I think this is the problem, the contacts,because I am getting voltage to the horns. Can anyone help me diagnose this problem so I dont have to bring the car into a shop. All information is kindly appreciated. Thanks , rf64








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    Strange Horn 200 1991

    uid 25912's pic
    posted by  Sven's Maintainer on  Mon Apr 10 00:02 CST 2006
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    last visit: Sun Sep 16 20:44 CST 2012
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    On an airbag car make sure you disconnect the battery ground cable before working in the steering weheel/dash area.

    Possibly and hopefully, the problem is not the switch contacts in the steering wheel. There is another possibility.

    Remove the steering column's plastic cover. Just slightly down the column from the turn signal switch find the ground screw. If I recall it has two ground wires screwed to it. Make sure the ground is clean and screwed down tight. See if that fixes the horn problem (after you hook up the battery again).

    Horn circuit power runs from fuse & ign. switch to horn, to switch in steering wheel, to ground screw.

    --
    Sven: '89 245, IPD sways, electric rad. fan conversion, e-codes, 28+ mpg - auto tranny. 850 mi/week commute. '89 245 #2 (wifemobile). '90 244 (spare, runs).







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