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Old 30-06-2005   #1
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Red face fiat uno 45s radio fuse help

hi!

hope everyone is good today!

anyways....
i just downloaded the haynes manual for my uno 45
but i cant make head nor tails of it!!!
it says in there that theres a power lead for the radio cos a radio isnt fitted as standard that page and the rest of the book dont help me understand how to fit the radio lol
also why cant they put a proper diagram of the fuse box telling you what they all are????
i still dont know which one is for me radio lol
so basically if you had a fiat uno 45s 1991 ish can you please tell me which fuse is for my radio lol
thanks!!
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Old 30-06-2005   #2
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Re: fiat uno 45s radio fuse help

Hi again,

It's the 2nd row down, second one in with a burning fag above it. - Should be a red 10A fuse.

Regards,
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Old 30-06-2005   #3
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Talking Re: fiat uno 45s radio fuse help

hi again
thank you sweetie found it
think that and many others gots to be changed!!!!!
my light dont come on neither you know the one on the roof when you open the door?
so think ill have to send me bro on a mission(he knows what hes looking for!)

but thank you i just wanted to make sure it had a fuse and to tell my bro where it is cos all the others had little symbols except that one i thought it was the cigarette lighter!!!!

thanks xxx
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Old 30-06-2005   #4
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Re: fiat uno 45s radio fuse help

hay Louie, while were on the subject of fuses... for the water pumps is there one or two fuses? like one for front and one for back? just wondered because my rear pump isnt working....
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Old 30-06-2005   #5
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Re: fiat uno 45s radio fuse help

Hi Ryan,

Just checked for ya and its 1 fuse for front and back washer I’m afraid (20A row 3, far right).

Can you here the motor whizzing when you push the stalk away? If you can, you have a blockage in the pipe (probs the black non return valve just after the bottle).

If you can’t here it whizzing, try swapping the motor wire connectors over and see which one works (I think they will swap) – if only the front one works when you activate the rear one, there is a problem with the rear motor, else if only the rear one works now, there is a problem with the wiring.

That’s one thing that annoyed my about the MK2 – activate the rear washer and the wiper starts on a dry screen .

Regards,
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Old 30-06-2005   #6
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Re: fiat uno 45s radio fuse help

i disconnected the front one so i could hear the other day but no luck... i could be bothered at the time to switch them so i will try at the weekend as i finally finish college w00t!
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Old 30-06-2005   #7
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Re: fiat uno 45s radio fuse help

Mine rear washer doesn't work either.

It's definately the wiring at fault for me. My plan was to tape off the original rear washer wires and split the (working) wires for the front washer.
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Old 01-07-2005   #8
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Re: fiat uno 45s radio fuse help

Hi TS86,

There should only be 1 wire from the switch (I'm guessing), but take a look where the motor’s earth (black) wire goes to - in front and below the battery there may be a bank of spade connectors all with black wires (not sure on early MK2's) if you do, its probably this that’s causing the problem (bad earth) I'd cut all the spades off, fit new spade connectors and clean up the connector block before chancing new wire through.

My late MK2 has no bank - earths are all bolted direct to the chassis, so Ryan, I’d say yours is the same, and shouldn't suffer from bad earth .

I'd guess a bad motor is more common than a bad wire .

Regards,
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Old 07-07-2005   #9
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Re: fiat uno 45s radio fuse help

Hey Louie, I lost this thread...

I really want to sort out this dodgy grounding problem, cos sometimes it's quite bad and can probably only get worse. E.g. I turn the headlights on and the temp. guage reads about 3 notches extra, then goes on ride back/forth with the indicators, and so on and so on. It doesn't always happen though, just when it feels like it really.

I can't see any bunch of spade connectors etc. by the battery, just a thick black wire going to a bolt on the gearbox, and a thin coil on the battery tray bit.
So..what am I looking for exactly?

I think I really need to attempt something with this, otherwise I just know it will get worse later, especially with all this new wiring I'm currently doing for head unit etc.
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Old 08-07-2005   #10
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Re: fiat uno 45s radio fuse help

ok.if the dash is acting up.look behind the dash for a main earthing point.proberly needs attention.also at the rear end off car,clean all earthing points because belive it or not they can play havoc with the electrics.
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Old 08-07-2005   #11
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Re: fiat uno 45s radio fuse help

Thanks for that Sumpplug!!!

I think it’s the rear water jet pump, which is located and powered in the engine bay, rather than the rear wiper motor at fault here. Although its good practice to keep all the earth points clear, I wouldn’t say a bad earth at the rear causing this problem. Perhaps the rear earth affects the temperature sensor, I’m not sure on that one. I’d say look at the dash earth for temp gage first

I will (try and remember to) take a picture of the N/S/F earth banks of both MK1 and MK2 tomorrow when the light is better (no flash on my camera). Please PM me if I seem to have forgotten

Regards All,

Edit - just been to the garage for some cigs... took this on my travels - in box is N/S/F earth location. OK it’s not very clear...
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Old 10-07-2005   #12
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Re: fiat uno 45s radio fuse help

Thanks very much Louie. I saw it all today. Haven't done anything with it yet though, but I think I've got the idea.

A friend recommended I "uprate" the negative/ground - Replace the black negative that goes to battery, the thick cable which then bolts on to gearbox mounting point - To something like 0awg wire.
The idea came about as we were brainstorming possible audio setups.

I think I've got something specific with the earthing issue - the guages etc. go funny when I've got ignition module overheating issues. This is quite rare, and only really in really hot weather after the car's been run to operating temp. and then turned off (e.g. parked to go shops) for a 20mins or so.
What could this mean?

Anyway, where is the dedicated dashboard ground point?
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Old 10-07-2005   #13
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Re: fiat uno 45s radio fuse help

Hi TS86,

So does the early MK2 have a spade connecter bank?

I’m not sure the thick ground wire to the battery needs to be up graded TBH. Depends on how big the audio system you’re planning to fit will be.

The wires you are looking for are only a few MM thick for both washer motor, and the temp BTW.

I’m not too sure about the exact location of the dash earth point TBH. It’s behind the dash somewhere. I’d say Chas knows he had 2 dashboards in his Uno the other day – one he ripped out of the SX ready for his Uno.

Quote Originally Posted by ts86
I turn the headlights on and the temp. guage reads about 3 notches extra, then goes on ride back/forth with the indicators, and so on and so on. It doesn't always happen though, just when it feels like it really.
Quote Originally Posted by ts86
I think I've got something specific with the earthing issue - the guages etc. go funny when I've got ignition module overheating issues. This is quite rare, and only really in really hot weather after the car's been run to operating temp. and then turned off (e.g. parked to go shops) for a 20mins or so.
What could this mean?
I’d say clean up the earths, replace spade connectors as you go along, and monitor it.

Is the engine off, with the indicators on when the problem occurs BTW.
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Old 10-07-2005   #14
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Smile Re: fiat uno 45s radio fuse help

if things are getting hot,then you have a problem in the wiring.bad connections will do this.it builds up a resistance in the wiring causing relays and anything really to get very hot.it can cause fires!!! the earthing block in the engine bay under and in front the battery tray is a common problem.the rear washer motor,disconnect from car and test with wires to battery.should move spindle.if it does,wiring problem.if not,duff motor[common].all typical fiat electrical problems.dont we love em eh??!!
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