Fiat/Abarth 500 Headlights Staying On BCM Fix
If the headlights on your Fiat 500 have suddenly started staying on with the car off, you probably have a bad relay in your body control module, or BCM. This is an easy fix for someone with soldering skills. In this video I'll show the complete repair, from BCM removal to reinstallation.
I might sell kits to do this in the future, but I don't have it set up yet.
The relays are TE Connectivity V23086-C1021-A502. These are now obsolete, so I do not have a reliable source for them. You'll have to search for them around the internet, but I found them on eBay.
The headers I got were these:
https://www.amazon.com/dp/B07BRZG9JP
Any headers will work as long as they are 2 row, 26 pin, (or longer and breakable) .100" pitch, and with an assembled overall height of around 10mm. You could also get long pin headers and solder them to both boards, but it wouldn't be as easy to take apart in the future.
Here's my favorite entry-level soldering station:
https://www.amazon.com/dp/B077JDGY1J