Thanks for the inputs gentlemen!
Zip I'll check these links of the official relays!
180 thanks for the advice about the all RCM, I'll check that too. (Probably a better option than buy a pack of 100 relays, I hope not having to repair the RCM 99 times more! )

As for the Killswitch itself, yeah maybe you both are right and it's overcomplicating things, but I read so many SKREEM nightmare stories here that getting rid of it prior to the failure , plus having an alternative for added security , it's something that often come to my mind, considering that our cars have 20 yrs and electric modules fail over time and substitution gets a bit complicated...

​​​​​​Skreem seems like a ticking bomb to me, even following your advices regarding electric care of it as not jump starting/be jump started, using a booster, etcetera

BTW, I posted the thread in /All XF having in mind that everyone has an RCM, as a possible Killswitch location, given that I found just a pair of brief references in my previous search for related posts
But if mods consider it's better for it to be here, as is related to an RCM failure, it's ok to me of course, move it wherever could be more useful to the community.

I'll update post with the repair results, in case it may be helpful for anyone.
Thanks to y'all. Have a nice Ride!
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