Auto light switch retrofit

[LoveYeti]

Hello all,

 

I have a few questions

 

Currently my FL Yeti SE doesn't have a Auto light switch option. 

If I wanted to retrofit it I need one with this function or do I also need a light sensor e.g  that can be put on my dashboard? 

 

I have a rain sensor.

 

How it's done in Yetis that have this option?

 

Thanks

 

 

[langers2k]

If you have a RLS (rain light sensor) for auto wipers, then you'll probably just need a new light switch, an extra wire to the BCM and some coding

[LoveYeti]

Would you have any diagrams or happen to know what and how wire it please?

[langers2k]

Pretty sure it's T10b/2 to T52aa/20.

 

That'll be pin 2 on headlight switch connector going directly to pin 20 on the black BCM connector

 

If you're super lucky, the wire may already be there!

[LoveYeti]

Thank you so much! I think I saw someone saying about a grey cable. It was on YT but I saw so many films how to..that I don't remember