Hi I'm having problems with my fiat500 every time I press the brakes it blows a fuse and the speedometer and clocks stop working and the brake lights don't work what could this be can anyone help thanks

Re: Fiat500

It might help if you gave us a few more details about your car:

What year/engine
Mileage
Last time it was serviced

Re: Fiat500

frupi said:

It might help if you gave us a few more details about your car:

What year/engine
Mileage
Last time it was serviced

Click to expand...

It's a 1.2 2010 I think the last service was just over a year ago

Re: Fiat500

Ok, just trying to get an overall picture of the car for someone to give you the appropriate help. How many miles has this car done? You say you think the car was last serviced just over a year ago, have you just recently bought the vehicle?

You might need to hook this vehicle up to diagnostics/multiscan-ecu.

Does the dash pod flash any warnings or does the odometer continually flash?

Does the car have Stop/Start?

What sort of condtion are the pads/discs like on the front of the car?

Ant1979edgar said:

Hi iv got a fiat500 every time I press the brakes it blows a fuse and the speedometer and the clocks stop working and the brake lights don't work can anyone help with this problem

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Hi,
This is a short circuit in the brakelight circuit. Could be a faulty bulb, short in light cluster, or a short in the wiring.
Try unplugging the two rear clusters and see if fuse still blows. If it still does it's a short in the high level light or wiring. If it does not blow, plug one cluster in and try again. When the fuse blows look at the last thing you plugged back in.
Have a good look at all the wiring while doing this, look for cuts, chafing or overheating.

Robert G8RPI.

Re: Fiat500

frupi said:

Ok, just trying to get an overall picture of the car for someone to give you the appropriate help. How many miles has this car done? You say you think the car was last serviced just over a year ago, have you just recently bought the vehicle?

You might need to hook this vehicle up to diagnostics/multiscan-ecu.

Does the dash pod flash any warnings or does the odometer continually flash?

Does the car have Stop/Start?

What sort of condtion are the pads/discs like on the front of the car?

Click to expand...

It's my girlfriends car we have had it from new its done 62240 mil had new brakes last year the dash don't show any warning signs it has stop start yes

Re: Fiat500

Ant1979edgar said:

It's my girlfriends car we have had it from new its done 62240 mil had new brakes last year the dash don't show any warning signs it has stop start yes

Click to expand...

Sorry new brakes early this year

g8rpi said:

Hi,
This is a short circuit in the brakelight circuit. Could be a faulty bulb, short in light cluster, or a short in the wiring.
Try unplugging the two rear clusters and see if fuse still blows. If it still does it's a short in the high level light or wiring. If it does not blow, plug one cluster in and try again. When the fuse blows look at the last thing you plugged back in.
Have a good look at all the wiring while doing this, look for cuts, chafing or overheating.

Robert G8RPI.

Click to expand...

Thanks I'll give this ago and get back to you

This query has clearly crossed two different threads.

I wonder, would this problem be connected to chafed rear hatch wiring?

frupi said:

This query has clearly crossed two different threads.

I wonder, would this problem be connected to chafed rear hatch wiring?

Click to expand...

Just unplugged the 2 rear clusters put a new fuse in and its blown it again

I'm going to suggest something you may not like. It is entirely possible you could end up chasing your own tail for days or even weeks, and if your girlfriends car is in daily use, that isn't much kop.

My suggestion therefore, is to take the car to your nearest Fiat dealership and get them to run it through diagnostics. You may not want to do this because you're worried about the cost, but they might be able to diagnose the issue within minutes. You could also find a good independent auto electrician.

Many Fiat dealerships offer special rates for vehicles over three years old at reduced prices.

I don't know where you are based, but the following link is just an example:

http://www.pentagon-fiat.co.uk/offers/servicing-and-repairs/fiat-fixed-price-servicing

frupi said:

This query has clearly crossed two different threads.

Click to expand...

Sorted. It's all in one place now.

frupi said:

I wonder, would this problem be connected to chafed rear hatch wiring?

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That was my first thought, too.

A close inspection of the hatch wiring should be the second thing you do on any 500 with a suspected electrical problem.

The first thing you should do is disconnect the battery before you inspect it. If there is a problem with the hatch wiring, inspecting it could cause a short circuit or a stray live feed, potentially making the problem worse.

There's no point putting diagnostics on the car until you've checked the integrity of the wiring; if the wiring is faulty, diagnostics could give you a misleading result.

There have been examples on this forum of franchised dealers who've quoted for many hundreds of pounds of unnecessary work on the basis of running diagnostics on a car with faulty hatch wiring.

This post has pictures which show you what to look for.

It's an extremely common problem.

And not forgetting the solution in this thread:

https://www.fiatforum.com/500/354891-hatch-wiring-cables-5.html

jrkitching said:

Sorted. It's all in one place now.



That was my first thought, too.

A close inspection of the hatch wiring should be the second thing you do on any 500 with a suspected electrical problem.

The first thing you should do is disconnect the battery before you inspect it. If there is a problem with the hatch wiring, inspecting it could cause a short circuit or a stray live feed, potentially making the problem worse.

There's no point putting diagnostics on the car until you've checked the integrity of the wiring; if the wiring is faulty, diagnostics could give you a misleading result.

There have been examples on this forum of franchised dealers who've quoted for many hundreds of pounds of unnecessary work on the basis of running diagnostics on a car with faulty hatch wiring.

This post has pictures which show you what to look for.

Click to expand...

Thanks for all ur help I'll have a look again tomorrow it's raining now ha thanks once again

Hello,did you find any solution regarding this case?

Lgeorgiadis said:

Hello,did you find any solution regarding this case?

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Hi

Hatch wiring damage sounds very likely..

Probably the last suggestion
Ant1979edgar received

Hello,i am a little bit confused about this issue because i have many thoughts that except of hatch wiring damage anyther suspect is the brake light switch or the cabling near brake lights switch...i will replace my break light today and if the problem still exist i will check the hatch wiring also! varesecrazy

Checking the hatch wiring is free and would be the first place I checked....using my 50 years of driving at the basis for that statement.

Just for your info guys,yesterday i replaced the brake light switch as i had a suspicion that the problem came from there,but NO,in the end the culprit was the knows hatch wiring loom,photos attached...

Sorry i cannot yet attach photos as i must have at least 5 posts,and i am a ver fresh member...