Register Login
FIAT Auto Specialist Team
Thread Tools Search this Thread
Old 06-03-2019   #1
Join Date: Mar 2019
Posts: 1
Thanks: 0
Trader Rating: 0
Lights turning on when parked

I have a really strange problem with my Fiat Punto Evo (2011) which my local garage and fiat dealer are unable to fix permanently until today...

The problem is this problem occurs very randomly, when my car is parked and locked, the head lights (and behind also I believe) are turning on, and flickering in a spooky way (they dim a bit and turn bright again all the time).

So this might start in the middle of the night, on a random day, until the battery runs out and I'm unable to drive (or even open my automatic locks).

Please note, my light switch is turned off (not on, not auto, but really off). I would think this breaks the circuit but probably it doesn't work like that because of the auto-functionality and the switch is controlled by this small computer / fuse box.

The garage tried to reset my fuse box and another time the dealer updated the software.

The problem is that when I go to the garage or dealer, I'm not able to show the problem since it occurs randomly.

After the update it worked for a couple of months, until the problem suddenly persists again.

Is there anyone who might have experienced this problem or can point me in the right direction?

Would replacing this fuse box fix the problem? I don't want to replace parts just to guess if it might work, since it will cost a couple of hundreds euros to do so..

Please see the video of the problem:
FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

Voorsie is offline Reply With Quote Quote 
Old 07-03-2019   #2
Join Date: Apr 2011
Location: Near the M4
Posts: 23,741
Thanks: 864
Trader Rating: 0
varesecrazy has donated!
United Kingdom 
Re: Lights turning on when parked

I cannot view videos..
So will ask the obvious..

Do you have any aftermarket electrical items?

One of the not shutting down correctly..
Either through the CANBUS network.. or its own internal issue.. would bd a strong contender..

So would be poorly made connections to additional items ..ALARM? TOWING BAR??

FIAT Forum Useful Links:
Donate to FF | Buy FF Merchandise | Classifieds | FF Insurance | How-to Guides

varesecrazy is online now Reply With Quote Quote 
Old 08-03-2019   #3
Join Date: May 2011
Location: Norfolk UK
Posts: 10,676
Thanks: 507
Blog Entries: 8
Trader Rating: 0
United Kingdom 
Re: Lights turning on when parked

Watching the video it looks to me to me (and this is only my opinion but I was an electronics engineer for years) I would say you have a water ingress problem. Where the water is, will likely be the biggest problem to solve.

You might have a damaged headlight really but that would be an easy fix. You may have water in the wiring look causing a short.
You may have water in an electronic module like the body computer causing the lights to actually turn on and off.

It is extremely difficult to even begin to tell you where to start with the problem like this.

I think my approach would be to pull the headlight relay and see if the trigger wire for the relay is going live or not. Nd work my way through the systems.
Maker and voice behind the YouTube channel PuntoHowTo 10k subscribers canít be wrong

And now the owner of a shiny new PuntoHowTo Drivetribe
AndyRKett is offline Reply With Quote Quote 
Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump
Similar Threads
Thread Thread Starter Forum Replies Last Post
(T) Lights turning off welshy0007 Grande Punto 3 17-09-2014 01:31
(G) Turning lights ascott92 Bravo 14 04-09-2011 11:21
(G) Lights not turning off unners72 500 12 14-05-2010 16:53
Turning on the lights... marco20vt Leisure Lounge 2 20-11-2008 15:24
(T) Fiat Punto 1.2 X Reg 2001 Hazard Warning Lights Come On When Car Is Parked NattyBuck Punto (Mk2/2b) 1 10-04-2007 18:07