Electrics Issue, interior light flashing and other problems!

Technical questions and answers about the Mazda Bongo

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rileyhound

Electrics Issue, interior light flashing and other problems!

Post by rileyhound » Thu Nov 15, 2007 2:37 pm

Hi, hope someone out there can help identify this problem.

I have a very lovely 96 reg 2.5 AFT but got into the Bongo this morning and noticed that the interior light was flashing, a clicking sound was coming from behind the dashboard (clicking at the same rate as the interior light) and the radio was not working.

Its seems that the power to the interior electrics powered by the #1 fuse is being interrupted in time with the regular clicking. Removing #1 fuse stops the clicking/flashing but I then noticed I get a faintly glowing door open warning light and when the passenger door is then opened the glow plug light flashes. This only happens when #1 fuse is removed.

The rest of the electrics seem fine and the Bongo drives as normal.

I have a leisure battery fitted but checked this and just to make sure the leisure circuits were not at fault I reset all internal electrics back to the main fuse panel. No change though and battery voltages were fine so I obviously have a wiring fault somewhere.

Next step was checking the wires between the doors and the bulkhead. Un-wrapped them but no sign of any wear or break. Where do the wires normally fail? I only checked them between the two gromits (i.e. between gromit going into door and gromit going into body).

I'm assuming it is the door wiring at fault but I could be wrong, any other ideas? Also where is the clicking coming from, I can hear it but can't identify the relay. Sounds like it is behind the glovebox somewhere.

Thanks!!!
pippin

Post by pippin » Thu Nov 15, 2007 3:53 pm

Could be a poor earth somewhere.

With the relay energised the voltage drops due to the load of whatever it is connecting.
So, the relay drops out.
Voltage rises so the relay then energises again & so on.
rileyhound

Post by rileyhound » Thu Nov 15, 2007 4:04 pm

Thanks Pippin.

Sounds quite likely, have found most electrical issues with cars to be down to bad earths.

Any idea where the major earthing points are on a Bongo, seems to be related to the items on #1 fuse.

I'm sure it will be something simple once I find it. Sadly finding it is the hard part!
rileyhound

Post by rileyhound » Sun Nov 25, 2007 9:15 am

Problem solved. Just in case anyone experiences the same thing it was just a bad earth where the leisure battery connects to the chassis!
pippin

Post by pippin » Sun Nov 25, 2007 10:10 am

That'll cost you a beer when/if we ever meet!
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mikeonb4c
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Post by mikeonb4c » Sun Nov 25, 2007 1:04 pm

Excellent news. Spot on diagnosis by Pippin.....again. He'll not be able to get his head through the front door if he carries on like this. :lol: :lol:
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Post by bigdaddycain » Sun Nov 25, 2007 4:17 pm

Pip couldn't get his head through the door anyway mike :lol: :lol: :lol:
ビッグダディケイン RIP Big Bank Hank (Imp the Dimp) 1957-2014
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Post by mikeonb4c » Sun Nov 25, 2007 4:29 pm

bigdaddycain wrote:Pip couldn't get his head through the door anyway mike :lol: :lol: :lol:
Anywhere else maybe?

I'm a dead man. Better start running :?

Only kidding Pips
pippin

Post by pippin » Sun Nov 25, 2007 5:11 pm

Prick me and I bleed!
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Post by mikeonb4c » Sun Nov 25, 2007 7:03 pm

Sorry Pippin - my problem is I can't resist a good one-liner. Been spending too much time with my musical partner Daymo in front of audiences and I think its rubbing off on me. Better get myself into Rehab
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