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Fuse box queries

Posted: Mon Dec 02, 2019 12:08 pm
by Owent2005
Good morning!

Thought I’d go and try and figure out my fuse box this morning and have had mixed results. I’ve worked out that no’s 1 and 2 are permanently live, 5,6 and 7 are live with 2 turns of the key and 3 and 4 are live when the lights are operated.

Here’s what I don’t know (amongst other things),with the car running I pulled out one connector at a time to find out what it operated.

When I pulled out 3 and 4 (which are joined) the drivers side light went out only, all other lights stayed on which totally baffles me!

And I have no idea what connection 6 does (maybe the horn but that doesn’t work at the moment).

If anyone could enlighten me about a bit of electrickery that would be great!

Owen

Re: Fuse box queries

Posted: Mon Dec 02, 2019 12:14 pm
by D366Y
This site will be helpful for you - saves you figuring it out and also the diagrams for each fuse enlarge so you can check the wiring

http://www.a400mod.com/Fuses.htm

Re: Fuse box queries

Posted: Mon Dec 02, 2019 7:01 pm
by Mc Tool
There is some weird stuff going in the Capri wiring ,both tail lights opperate off different fuses :shock: . D336y looks to have provided some good info . Have a look as you will find things you wouldn't reasonably expect to find ....like the tail lights

Re: Fuse box queries

Posted: Mon Dec 02, 2019 7:32 pm
by Andrew 2.8i
I would suggest downloading those wiring diagrams to your PC, don't rely on them being on that website on a permanent basis. Nothing lasts forever....

Andrew.

Re: Fuse box queries

Posted: Mon Dec 02, 2019 8:02 pm
by stevemarl
Mc Tool wrote:
Mon Dec 02, 2019 7:01 pm
There is some weird stuff going in the Capri wiring ,both tail lights opperate off different fuses
Doen`t that make sense though, if they were on the same fuse and that blew you`d have no rear lights, whereas if they`re separate you`ll always have at least one?

Re: Fuse box queries

Posted: Mon Dec 02, 2019 10:09 pm
by Not_Anumber
Clockwork Orange knows a thing or two about Capri electrics and has produced his own diagrams which are a lot better to read than in the Haynes manual and more accurate too. Start with: http://www.capripower.co.uk/forum/index ... ngs.21510/

Re: Fuse box queries

Posted: Tue Dec 03, 2019 12:28 am
by Mc Tool
stevemarl wrote:
Mon Dec 02, 2019 8:02 pm
Mc Tool wrote:
Mon Dec 02, 2019 7:01 pm
There is some weird stuff going in the Capri wiring ,both tail lights opperate off different fuses
Doen`t that make sense though, if they were on the same fuse and that blew you`d have no rear lights, whereas if they`re separate you`ll always have at least one?
Well ,yeah ,when you say it like that :D , but being a bit cynical when it comes to Henry's best efforts I suspect that is a happy accident rather than a planned safety feature :lol: . To be fair I twigged fairly quickly (once I had bothered to view the wiring diagram ).

Re: Fuse box queries

Posted: Tue Dec 03, 2019 8:43 am
by Bug
Remember that most of the connections happen underneath the box via a huge multi-plug.

I think, from memory, the black wire to terminal 6 is for the windscreen wash pump.
I had a problem years ago with mine not working, but a simple test with one of those light up screwdrivers showed power getting to the pump.
Turned out to be corrosion on the spade connector at the fuse box. Caused too high a resistance to allow the pump to run, but let enough through to light the test bulb.

Re: Fuse box queries

Posted: Tue Dec 03, 2019 11:47 am
by Bug
Bug wrote:
Tue Dec 03, 2019 8:43 am
Remember that most of the connections happen underneath the box via a huge multi-plug.

I think, from memory, the black wire to terminal 6 is for the windscreen wash pump.
I had a problem years ago with mine not working, but a simple test with one of those light up screwdrivers showed power getting to the pump.
Turned out to be corrosion on the spade connector at the fuse box. Caused too high a resistance to allow the pump to run, but let enough through to light the test bulb.
OK, having read your post regarding your horn issue, I notice that someone says the windscreen wash pump is on fuse one.
If so then I apologise for the confusion. However, your photo of your fuse box doesn't show a connector on fuse one, so that leaves me con(fuse)d.
Maybe check out fuse six and see what happens?

Re: Fuse box queries

Posted: Tue Dec 03, 2019 1:21 pm
by D366Y
Good point - the connection you have on fuse 7 is attached to fuse 1 on mine?

Cheers
Danny

Re: Fuse box queries

Posted: Tue Dec 03, 2019 10:02 pm
by Owent2005
Hi, I should have explained a little better, the picture shows the fuses no 1 on the left, 7 on the right.
7 is the windscreen washers with nothing on 1 or 2. What do people use these for?

Owen

Re: Fuse box queries

Posted: Thu Dec 05, 2019 10:38 am
by D366Y
None of my cars have all connected - I have the a wire on fuse 1, fuses 3 and 4 and 6 - basically take the wire to fuse 7 off yours, put it on number 1 and would look exactly like my three do

Re: Fuse box queries

Posted: Thu Dec 05, 2019 11:28 pm
by tejb1
For the sake of the cost of new fuses (pennies) I replaced them all a few years ago. Several were the wrong rating and most were very fragile, which caused issues.