Help with the horn........

[flymanfly]

I'm probably missing something obvious but here goes......

My 98 S40 1.8 is mute. Not a peep. Stock standard fitting. On a multimeter I get 6.7v measured at both horn connectors when the wheel centre is depressed. Fuse is OK. Is there a relay involved that might be at fault or is there a known "issue"?

Hope someone can help this newbie.

[morphinemitt]

Had the same problem with Mrs mitt's punto. Cleaned the male and female connectors on the horn and crimped them slightly with some pliers to ensure a tight fit, then gave the actual horn itself a dose of WD-40. Hey presto...she got the horn!
Hope this helps.

Nipper said!!

[flymanfly]

Tried the connectors and WD40 but still no noise. I assume the horns operate at 12v. As I'm only gettign 6.7v I think its more likely to be wiring, relay, steering wheel issue.

Any other thoughts anyone before it goes to the garage?

Regards

[The Mad Taff]

I had a problem with one of mine, there was current going thru the live but not the earth (if that makes sense). A main dealer said that the earth for some reason was routed under the radiator and often got corroded, so suggested I bypass the duff one and route a new bit of cable from the good horn, hey presto it worked, not have both the high and low tones working as normal.

[bigandquick]

It's a common problem. It lies with the connectors under the steering wheel.
My mate removed the steering wheel centre (careful of the airbag) which exposed the contact ring, gave them a good clean and no problems since.
If you're going to do that I think the securing screws for the centre are on the rear of the wheel facing the dash. Needed a long thin extension with a torx bit to remove them.