Technical questions and answers about the Mazda Bongo
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jasonlig
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by jasonlig » Tue Sep 21, 2010 12:42 pm
Very foggy this morning so for the first time i thought i would try out the fog lights on my Bongo.
The rear one worked fine using a rather bland switch (always wondered what it did) that was next to the front fog light switch.
On turning both of the switches on they lit up, but the front lights didn't(haven't checked the bulbs yet). The strange thing is that it's making a weird wurring noise, like a fan or motor has been turned on. Any ideas?

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rita
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by rita » Tue Sep 21, 2010 1:03 pm
jasonlig wrote:Very foggy this morning so for the first time i thought i would try out the fog lights on my Bongo.
The rear one worked fine using a rather bland switch (always wondered what it did) that was next to the front fog light switch.
On turning both of the switches on they lit up, but the front lights didn't(haven't checked the bulbs yet). The strange thing is that it's making a weird wurring noise, like a fan or motor has been turned on. Any ideas?

Hi,
It might be the relay chattering.
Cheers..
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rita
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by rita » Tue Sep 21, 2010 1:06 pm
rita wrote:jasonlig wrote:Very foggy this morning so for the first time i thought i would try out the fog lights on my Bongo.
The rear one worked fine using a rather bland switch (always wondered what it did) that was next to the front fog light switch.
On turning both of the switches on they lit up, but the front lights didn't(haven't checked the bulbs yet). The strange thing is that it's making a weird wurring noise, like a fan or motor has been turned on. Any ideas?

Hi,
It might be the relay chattering.
Cheers..
PS Try turning on the head lights at the same time.
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jasonlig
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by jasonlig » Tue Sep 21, 2010 1:08 pm
Oh thanks for the idea it could be.. its fairly loud and more wurry than clicky but worth a try.
I can hear the noise from both inside and from the bonet.
Any ideas where the relay is?
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jasonlig
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by jasonlig » Tue Sep 21, 2010 1:09 pm
PS Try turning on the head lights at the same time.[/quote]
Oh yeah i had the front lights on while i was testing them.
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wonkanoby
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by wonkanoby » Tue Sep 21, 2010 1:56 pm
but were they on main beam.....not just dipped
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jasonlig
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by jasonlig » Tue Sep 21, 2010 1:58 pm
I was trying it on dipped, as i thought fog lights work best in dipped as you can see further..as the main beam always makes it worse. Or is this just me?
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rita
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by rita » Tue Sep 21, 2010 2:02 pm
jasonlig wrote:Oh thanks for the idea it could be.. its fairly loud and more wurry than clicky but worth a try.
I can hear the noise from both inside and from the bonet.
Any ideas where the relay is?
Hi,
If you have factory fitted lamps,the relay is normally on the N/S inner wing,the one nearest the front of the vehicle.
Cheers..
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g8dhe
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by g8dhe » Tue Sep 21, 2010 2:22 pm
Are you certain that the other switch is for Front Fog Lights, neither lights or relay would make a "wurring" noise, but the quick heat start up system switch is in a similar position I think ? Now that does close various flaps and and would change the sound of the engine!!
Geoff
2001 Aero V6, AFT, full side conversion.
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francophile1947
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by francophile1947 » Tue Sep 21, 2010 3:34 pm
jasonlig wrote:I was trying it on dipped, as i thought fog lights work best in dipped as you can see further..as the main beam always makes it worse. Or is this just me?
No, you're right

Only driving/spot lights should come on with main beam

John
(Evidence that intelligent life exists in the universe, is that it hasn't tried to contact us)
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jaylee
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by jaylee » Tue Sep 21, 2010 9:03 pm
jasonlig wrote:Very foggy this morning so for the first time i thought i would try out the fog lights on my Bongo.
The rear one worked fine using a rather bland switch (always wondered what it did) that was next to the front fog light switch.
On turning both of the switches on they lit up, but the front lights didn't(haven't checked the bulbs yet). The strange thing is that it's making a weird wurring noise, like a fan or motor has been turned on. Any ideas?

Not a (Mikeon style) scavenger fan over ride switch perchance.... ??
Cheaper by comparison to a race horse...

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Northern Bongolow
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by Northern Bongolow » Wed Sep 22, 2010 2:50 am
may sound a bit of a strange Q but does your horn work ok,maybe got a short circuit going on,as they are quite near each other,and i think the relays are.one for geoff me thinks

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jasonlig
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by jasonlig » Wed Sep 22, 2010 12:55 pm
Thanks for all the suggestions.. no idea what the "scavenger fan" is will have to google that.
Deffinately the front fog switch, unless someone in Japan decided to make use of it for something else
Had a little poke under the bonet and it appears that noise is comming from the one of two relays next to the leisure battery. Guess i'll have to pull the offending one out to find out what part i need. Hopefully it's just a dodgy relay and not something else going wrong.
J
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bigdaddycain
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by bigdaddycain » Wed Sep 22, 2010 1:57 pm
Hi jason, the scavenger fan is an extra fan aside from the rad fans to extract hot air, and move air around the engine compartment in the bongo.

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g8dhe
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by g8dhe » Wed Sep 22, 2010 5:36 pm
Coming back to the original problem, given that it is the relay chattering, check that the earth point for the relay and lights is OK, its unlikely that the relay itself is faulty, it sounds like the extra current being drawn by the lights is then causing the relay to drop out as they use the same earth point (1);

The earth point is located here in the front

Geoff
2001 Aero V6, AFT, full side conversion.