91 volvo 740-horn doesn't work

neworleans · Post by **neworleans** » 12 Jan 2012, 20:16

Hello mates,

The horn stopped working on my 740, what could be the problem???

thanks...

ed7 · Post by **ed7** » 12 Jan 2012, 22:40

The fuse, then the relay would be next. Rap the horn with a hammer handle while power is applied. Sometimes the points inside get cruddy and you can move the tuning screw on the back 180 deg either direction to re-establish contact.
Ed

Post by **billofdurham** » 13 Jan 2012, 11:55

Fuse 15 covers the horn and windscreen/headlight wipers so if the latter are working the fuse is OK. There is no relay for the horn.

Check the wiring at the horn for 12v. Also check the connectors are good. I have seen horns where they have come off due to the beating they take with water, dirt and other nasties.

Bill.