Technical replaced front tweeters FIAT Punto EVO 2011, power windows/ambient light not working

[StarAlpha]

So I decided to replace my front speakers in my fiat.
Last Friday I only replaced the normal woofers and everything worked fine.
I still needed to replace the tweeters so I decided to do that today, so just before I replaced them I still used my windows and the ambient lighting in the door was still on and working.

Then after I replaced the tweeters I turned on the car to test them and everything worked fine.
Then I connected the adapter for the windows and automatic mirrors and tried to test them but they stopped working.

I'm not sure if I had one side connected only before or if I already had both connected.
Anyways I saw a reddit post about a Nissan that had to reset them by disconnecting the battery, so that's what I also did and I left it for 15 minutes like that but still not working.

Fuses seem to be fine too.

What else can I try?

 

[the green vanper]

Hello,

Attached the eLearn docs for both power windows and HiFi radio. Perhaps you'll find a common part somewhere.

 

[StarAlpha]

Hello,

Attached the eLearn docs for both power windows and HiFi radio. Perhaps you'll find a common part somewhere.

Hi,

Thank you for that! Would you be able to see if there's a document for the lights in the door/door handle as well?
I wonder if there's any correlation between the windows and those lights.

 

[the green vanper]

Hi,

Thank you for that! Would you be able to see if there's a document for the lights in the door/door handle as well?
I wonder if there's any correlation between the windows and those lights.

Which handles are you talking about? Can you post a photo, please?

 

[StarAlpha]

View attachment 463750

Which handles are you talking about? Can you post a photo, please?

The ones you can see here:

 

[the green vanper]

I'll try to look for something, looks to me like the instrument cluster / dashboard lights. Or as mentionned, the mirrors.

I've checked courtesy lights doc, but does not mention those.

When they are (or should be) illuminating? with the parking / side lights? or with ignition on?

 

[StarAlpha]

I'll try to look for something, looks to me like the instrument cluster / dashboard lights. Or as mentionned, the mirrors.

I've checked courtesy lights doc, but does not mention those.

When they are (or should be) illuminating? with the parking / side lights? or with ignition on?

Thanks for the reply!

They work when ignition is on.
I will check the fuses again and probably the loom on both door sides as well.
There more I read the more it seems cables

 

[the green vanper]

I'll get you some more docs to read this evening if the site is online...

 

[StarAlpha]

I'll get you some more docs to read this evening if the site is online...

Thank you! I'll check some fuses and the cables.
I'll let you know if I find anything

 

[StarAlpha]

I'll get you some more docs to read this evening if the site is online...

So I checked the following fuses:
F32, F37, F47, F48, F49 and F86, they're all fine and in good condition.

I also checked the cables that come through the door, they seem to be in great condition.

Tomorrow I am going to disconnect the battery for some hours to maybe empty the capacitors and soft reset the bcm

 

[the green vanper]

I've checked several times, the site was down and still is now.

 

[StarAlpha]

I've checked several times, the site was down and still is now.

I checked the loom, it is in great condition.
So a friend of mine connected a OBD scanner en got the following error: B1020

Which says:
Release relay windows, K.S. according to mass or overload, presence

I checked the diagrams and the doesn't seem to be a relay for the power windows.
Unfortunately I don't have a mulitmeter on hand, I'll check that next week.

Do you know by any chance what else I can check?

 

[the green vanper]

Haven't managed to access the website, it's still down. So can't help for the moment.

 

[Zardo]

I checked the loom, it is in great condition.
So a friend of mine connected a OBD scanner en got the following error: B1020

Check for the presence of short circuits to earth or Vbatt.

1. Presence of short circuit to Vbatt -> 1. Restore insulation to + batt.
2. Presence of short circuit to earth -> 2. Restore insulation to earth