Technical Help!!!! my sidelights are not working

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Technical Help!!!! my sidelights are not working

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hi all well i was doing some diy on my car fitting an alarm + remoe central locking and window closure to my 899cc fiat seicento SX and well when it came to the auto window closing this is where i got problems.

the manual said i needed to use two relays but me being me only used one and when it came to pressing down on the drivers side window pop! i heard the fuses go in the box :bang: (n) i checked the fuses and the window one had blown (phew!) well i poped another one in and tried the window again (pressed down) big pop sparks flew out of the fuse box.

centra locking and electric windows killed this time :(

not the fuses they were fine so i linked a wire over from the sidelight fuse to the central locking and window interface was working untill i pressed down again and pop! fuses had gone again

well i replaced the fuses in the sidelight and then to my suprise they wasnt working :( no lights at teh front nor the back (n)

so i thought theres got to be more fuses in the car somwhere so i popped the bonet and had a look well behind the battery i found some huge fuses one was a 30A which was blown i replaced it with a bodge job of a little fuse for now till i go to the shop. Well this luckily sorted the windows/central locking problem

but my sidelights still do not work

i then searched around the car for more fuses but i cant seem to find any more then what ive already found and they are all in top working cond

fuses ive found are:

1.JPG

Normal incar fusebox

2.JPG

Big fuses behind battery (back one has its lid on)

3.JPG

ECU ones none control lights

anyone know where there are any more fuses located in the car?

thanx in advance

gaz
 
all bulbs are fine :) when i put a 12volt line straignht into the fuse that controls the sidelights the lights all stay on even when the control on the lever is set to off?!?! i think a relay has welded itself closed when the thing shorted out but i dont know where the relay that controls this is?!?
 
I got me a bargain. I paid £300 for my N reg 96 sporting, 2 lady owners from the same family ( mum and daughter ) It had a blown head gasket and hadn't been very well maintained but the upside of that was that nothing had been got at if you know what I mean. £30 for a head gasket set. £20 for oil and filter change. £50 for assorted bits and bobs and the car is was sweet as a nut. Since then I have fiddled with it to make it go a bit better but its a loverly car.
 
I'm sorry I have been a very silly person. You require some help here.
Several things need answering.
1. Have both sides of the sidelight system stopped working or is it just left or right?
2.Where did you source the signal supply for the relay you put in or does your alarm/remote c/l send a + signal for window closure?
3. What wires have you got connected to which terminal of the relay?
 
by sidelights i mean parking lights e.g as in rear lights and headlight sidelights maybee called parking lights and this is on a 1999 FIAT SEICENTO SX S REG car

when i put a 12volt wire directly into the fuse box bit the parking lights all light up even when the switch on the stick is off and no keys in the ignition

at the moment i have them wired so when i turn my headlights on the sidelights come on with it.

is there a relay that when you turn the dial on the stick to parking lights (1click up) that turns a relay on to power the parking lights?

theres no 12volts power in the fuse box the 1st and 2nd 10A red fuses on the top row (red fuses not the central locking and window fuses that are the 1st ones on the top row)
 
ive sorted the window closing problem with the alarm thing its just that its knocked my parking lights out and they dont work via the switch no more.

the power for the window closure comes from my headunits power so its nothing to do with that.

theres no fried wires as i couldnt smell any burning after it popped

i think that a relay somewhere has welded itself in the on position which is why when i put a 12volts power through the fusebox the sidelights all light up but then again if it was welded itself in an on position then theyd be on all the time so it cant be that?!?!

any electrical schematics of the wireing loom for the lights ect.... haynes manual for cinqucuecento is no use as the wireing is differentish on the seicento
 
The sidelights have a single power supply that is only live when the ignition is in the on or start position. This single wire ( white ) is in the loom at the rear of the fuse box under the steering column. it supplies fuse 11 and 12 which is the bottom row and middle row 2nd from the left ( they should be 7.5a not 10a) If you put a live supply to either of these fuses and the lights l come on (which you reckon they do) that means that everything is ok from there on. The problem is from the ignition switch backwards through the main lighting switch on the dash.
 
I have just realised that this is a sei not a cinq. the principles will be the same but not the specifics. What I said above is true. It must be between the lighting switch and the ignition switch. if the headlights still work there is power going from the switch to the headlight relay signal circuit so your problem is either the lighting switch or the ignition switch or the wire joining the two.
 
the top row fuse number 3 & 4

[central locking 15?] [windows 25A] [blank] parking lights 10A parking lights 10A [headlights 10A] [headlights 10A]

thats how the top row starts off in the seicento the two above that are not in brackets have no power :(

i beleive the problem is from the power to fusebox but which way? is it from the battery to the fusebox or from the steering column to fusebox?

could someone with a seicento please test if the sidelights power is perminant 12v with the dial on off setting or is it only +12v when the switch is on?

switch could only control a relay? this is where i am stuck as i dont know which end to begin checking without knowing if its an always on 12v suplly
 
Its like this. when the ignition is switched on power from the main power supply (brown wire) is passed along a light blue wire to the lighting switch when the side light position is selected on the lighting switch power goes back to the ignition switch via a yellow wire which is switch by the igntion switch and come back out along a white wire to the rear of the fuse board. there are no relays in the side light circuits because they are low powered.
 
so it's.....

battery>ignition>switch>igniton>fuse box>panel light + sidelights

when i put 12v straight throuh it in the fuse box the panel light is on and so are my parking lights but they stay on all the while lol ill have to take a look at the weekend so prob deffently seems to be in the steering column then well i hope so :S

cheers for the info :) if anyone else has had a similare problem and sorted it please post info so it saves me time looking around lol

thanks :)

gaz
 
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