HORN FIX

Technical questions and answers about the Mazda Bongo

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topman

HORN FIX

Post by topman » Mon Jul 05, 2010 4:03 pm

Long frustrating day on the bongo!Horn found not to be working.Fixed now, this may be of some use to others as the forum helped me locate the relay. Problem started, tried horn across battery ,no joy, binned .Replaced with another that works,no joy,checked fuse,found blown.Replaced & still no joy,checked steering wheel conections all ok, refered to forum & found relay, swapped,no joy(starting to sweat 25 degrees).Checking the supply voltage on the 2 sides of the relay found one to be 12v & the other 9v?(not enough to pull the coil in on the relay. Bridging the 2 relay Feeds(yellow/red on the back of the connecter HEY PRESTO HONK HONK! I,am no auto electrican but it seems to work .All i can think is that the horn failed which blew the fuse & burnt out the feed wire to the holding in coil.
scanner
Supreme Being
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Location: Cambs

Re: HORN FIX

Post by scanner » Mon Jul 05, 2010 4:13 pm

Been there done that and got the skinned knuckles etc.

I found just the same, that the two 12v feeds (WHY 2 to do the same job?) to the relay were iffy.
So I just ran a new thick gauge wire via an inline fuse straight from the battery to both 12v in tags on the relay, so if it goes again I can check it and see where and why.
topman

Re: HORN FIX

Post by topman » Tue Jul 06, 2010 10:17 am

Thanks scanner for your comfirmation that you done the same & it worked :D I was worried that something else might not work.
scanner wrote:Been there done that and got the skinned knuckles etc.

I found just the same, that the two 12v feeds (WHY 2 to do the same job?) to the relay were iffy.
So I just ran a new thick gauge wire via an inline fuse straight from the battery to both 12v in tags on the relay, so if it goes again I can check it and see where and why.
scanner
Supreme Being
Posts: 7247
Joined: Wed Sep 19, 2007 10:20 pm
Location: Cambs

Re: HORN FIX

Post by scanner » Tue Jul 06, 2010 10:49 am

My next tweak will be to by-pass the lot and fit a separate relay altogether, so the only remaining original wiring will be that up to the steering wheel.
mrdeano

Re: HORN FIX

Post by mrdeano » Wed Jul 07, 2010 10:22 am

scanner wrote:My next tweak will be to by-pass the lot and fit a separate relay altogether, so the only remaining original wiring will be that up to the steering wheel.
That's what I have done, I still have the original Bongo horn, but I wired up another horn, that is meant to sound a wee bit like a "Bull" horn. Its 113 decibel or something like that, quite loud.
If you need pics, let me know and I'll see if I can post them on here.
Cheers
Mr D
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